/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label31.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 13:53:58,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 13:53:58,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 13:53:58,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 13:53:58,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 13:53:58,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 13:53:58,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 13:53:58,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 13:53:58,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 13:53:58,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 13:53:58,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 13:53:58,970 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 13:53:58,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 13:53:58,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 13:53:58,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 13:53:58,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 13:53:58,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 13:53:58,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 13:53:58,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 13:53:59,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 13:53:59,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 13:53:59,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 13:53:59,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 13:53:59,011 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 13:53:59,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 13:53:59,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 13:53:59,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 13:53:59,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 13:53:59,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 13:53:59,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 13:53:59,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 13:53:59,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 13:53:59,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 13:53:59,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 13:53:59,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 13:53:59,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 13:53:59,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 13:53:59,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 13:53:59,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 13:53:59,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 13:53:59,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 13:53:59,056 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 [2020-10-28 13:53:59,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 13:53:59,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 13:53:59,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 13:53:59,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 13:53:59,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 13:53:59,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 13:53:59,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 13:53:59,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 13:53:59,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 13:53:59,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 13:53:59,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 13:53:59,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 13:53:59,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 13:53:59,119 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 13:53:59,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 13:53:59,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 13:53:59,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 13:53:59,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 13:53:59,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 13:53:59,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 13:53:59,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 13:53:59,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 13:53:59,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 13:53:59,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 13:53:59,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 13:53:59,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 13:53:59,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 13:53:59,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 13:53:59,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 13:53:59,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 13:53:59,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 13:53:59,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 13:53:59,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 13:53:59,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 13:53:59,666 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 13:53:59,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label31.c [2020-10-28 13:53:59,763 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed41a3dd0/1c25964b6a864703b2f32e2036b75585/FLAG066ceb1d2 [2020-10-28 13:54:00,744 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 13:54:00,744 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label31.c [2020-10-28 13:54:00,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed41a3dd0/1c25964b6a864703b2f32e2036b75585/FLAG066ceb1d2 [2020-10-28 13:54:01,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed41a3dd0/1c25964b6a864703b2f32e2036b75585 [2020-10-28 13:54:01,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 13:54:01,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 13:54:01,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 13:54:01,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 13:54:01,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 13:54:01,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:54:01" (1/1) ... [2020-10-28 13:54:01,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b49fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:01, skipping insertion in model container [2020-10-28 13:54:01,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 01:54:01" (1/1) ... [2020-10-28 13:54:01,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 13:54:01,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 13:54:02,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:54:02,640 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 13:54:03,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 13:54:03,364 INFO L208 MainTranslator]: Completed translation [2020-10-28 13:54:03,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03 WrapperNode [2020-10-28 13:54:03,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 13:54:03,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 13:54:03,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 13:54:03,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 13:54:03,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (1/1) ... [2020-10-28 13:54:03,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 13:54:03,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 13:54:03,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 13:54:03,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 13:54:03,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (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 [2020-10-28 13:54:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 13:54:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 13:54:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 13:54:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 13:54:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-28 13:54:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-28 13:54:03,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 13:54:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 13:54:03,808 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-28 13:54:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-28 13:54:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 13:54:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 13:54:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 13:54:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 13:54:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 13:54:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 13:54:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 13:54:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 13:54:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 13:54:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 13:54:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 13:54:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 13:54:03,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 13:54:08,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 13:54:08,120 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 13:54:08,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:54:08 BoogieIcfgContainer [2020-10-28 13:54:08,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 13:54:08,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 13:54:08,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 13:54:08,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 13:54:08,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 01:54:01" (1/3) ... [2020-10-28 13:54:08,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5944d4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:54:08, skipping insertion in model container [2020-10-28 13:54:08,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 01:54:03" (2/3) ... [2020-10-28 13:54:08,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5944d4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 01:54:08, skipping insertion in model container [2020-10-28 13:54:08,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 01:54:08" (3/3) ... [2020-10-28 13:54:08,139 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label31.c [2020-10-28 13:54:08,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 13:54:08,158 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 13:54:08,172 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 13:54:08,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 13:54:08,223 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 13:54:08,223 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 13:54:08,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 13:54:08,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 13:54:08,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 13:54:08,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 13:54:08,224 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 13:54:08,257 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-28 13:54:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 13:54:08,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:54:08,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:54:08,265 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:54:08,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:54:08,272 INFO L82 PathProgramCache]: Analyzing trace with hash 411853024, now seen corresponding path program 1 times [2020-10-28 13:54:08,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:54:08,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1928607464] [2020-10-28 13:54:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:54:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:08,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:08,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:08,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-28 13:54:08,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 532 [2020-10-28 13:54:08,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:08,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:54:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:54:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 13:54:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 13:54:09,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:54:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:09,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:09,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:09,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:54:09,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:09,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 13:54:09,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:09,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:54:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:54:09,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:54:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:54:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:54:09,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1928607464] [2020-10-28 13:54:09,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:54:09,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 13:54:09,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965652820] [2020-10-28 13:54:09,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 13:54:09,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:54:09,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 13:54:09,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 13:54:09,228 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 4 states. [2020-10-28 13:54:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:54:17,766 INFO L93 Difference]: Finished difference Result 2275 states and 4354 transitions. [2020-10-28 13:54:17,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:54:17,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-28 13:54:17,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:54:17,805 INFO L225 Difference]: With dead ends: 2275 [2020-10-28 13:54:17,805 INFO L226 Difference]: Without dead ends: 1433 [2020-10-28 13:54:17,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:54:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-28 13:54:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1429. [2020-10-28 13:54:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1429 states. [2020-10-28 13:54:18,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 2323 transitions. [2020-10-28 13:54:18,012 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 2323 transitions. Word has length 22 [2020-10-28 13:54:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:54:18,013 INFO L481 AbstractCegarLoop]: Abstraction has 1429 states and 2323 transitions. [2020-10-28 13:54:18,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 13:54:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 2323 transitions. [2020-10-28 13:54:18,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-28 13:54:18,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:54:18,019 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 13:54:18,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 13:54:18,019 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:54:18,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:54:18,020 INFO L82 PathProgramCache]: Analyzing trace with hash -737206626, now seen corresponding path program 1 times [2020-10-28 13:54:18,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:54:18,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401308236] [2020-10-28 13:54:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:54:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:18,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:19,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:19,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 13:54:19,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:54:19,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1127 [2020-10-28 13:54:19,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:19,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:19,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:54:19,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:54:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 13:54:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:54:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:54:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:19,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:19,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:19,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:54:19,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:19,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 13:54:19,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:19,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:19,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:54:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:54:19,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:54:19,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 13:54:19,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:54:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:19,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:19,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:19,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 13:54:19,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:19,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-28 13:54:19,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:19,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:54:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:54:19,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 13:54:19,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:54:19,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401308236] [2020-10-28 13:54:19,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:54:19,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:54:19,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616040328] [2020-10-28 13:54:19,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:54:19,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:54:19,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:54:19,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:54:19,692 INFO L87 Difference]: Start difference. First operand 1429 states and 2323 transitions. Second operand 7 states. [2020-10-28 13:54:29,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:54:29,444 INFO L93 Difference]: Finished difference Result 4339 states and 7091 transitions. [2020-10-28 13:54:29,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:54:29,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2020-10-28 13:54:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:54:29,468 INFO L225 Difference]: With dead ends: 4339 [2020-10-28 13:54:29,468 INFO L226 Difference]: Without dead ends: 2916 [2020-10-28 13:54:29,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:54:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2916 states. [2020-10-28 13:54:29,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2916 to 2881. [2020-10-28 13:54:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2881 states. [2020-10-28 13:54:29,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 3965 transitions. [2020-10-28 13:54:29,589 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 3965 transitions. Word has length 91 [2020-10-28 13:54:29,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:54:29,590 INFO L481 AbstractCegarLoop]: Abstraction has 2881 states and 3965 transitions. [2020-10-28 13:54:29,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:54:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 3965 transitions. [2020-10-28 13:54:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 13:54:29,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:54:29,593 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 13:54:29,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 13:54:29,593 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:54:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:54:29,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1285413148, now seen corresponding path program 1 times [2020-10-28 13:54:29,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:54:29,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691787556] [2020-10-28 13:54:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:54:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:29,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:29,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:30,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:30,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-28 13:54:30,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:54:30,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 615 [2020-10-28 13:54:30,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:30,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:54:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:54:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 13:54:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:54:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:54:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:30,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:30,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:54:30,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:30,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 13:54:30,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:30,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:54:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:54:30,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:54:30,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:30,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:54:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:30,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:30,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:30,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 13:54:30,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:30,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 13:54:30,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:30,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:54:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:54:30,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 13:54:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:30,635 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:54:30,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691787556] [2020-10-28 13:54:30,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:54:30,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:54:30,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792111987] [2020-10-28 13:54:30,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:54:30,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:54:30,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:54:30,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:54:30,640 INFO L87 Difference]: Start difference. First operand 2881 states and 3965 transitions. Second operand 7 states. [2020-10-28 13:54:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:54:39,755 INFO L93 Difference]: Finished difference Result 8763 states and 12218 transitions. [2020-10-28 13:54:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:54:39,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 94 [2020-10-28 13:54:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:54:39,795 INFO L225 Difference]: With dead ends: 8763 [2020-10-28 13:54:39,796 INFO L226 Difference]: Without dead ends: 5888 [2020-10-28 13:54:39,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 13:54:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2020-10-28 13:54:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 5814. [2020-10-28 13:54:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5814 states. [2020-10-28 13:54:39,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 7375 transitions. [2020-10-28 13:54:39,996 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 7375 transitions. Word has length 94 [2020-10-28 13:54:39,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:54:39,996 INFO L481 AbstractCegarLoop]: Abstraction has 5814 states and 7375 transitions. [2020-10-28 13:54:39,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:54:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 7375 transitions. [2020-10-28 13:54:40,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-28 13:54:40,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:54:40,001 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 13:54:40,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 13:54:40,002 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:54:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:54:40,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1740594048, now seen corresponding path program 1 times [2020-10-28 13:54:40,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:54:40,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239099471] [2020-10-28 13:54:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:54:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:40,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:40,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:40,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 13:54:40,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:54:40,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-28 13:54:40,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:40,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:54:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:54:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 13:54:40,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:41,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:54:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:41,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:41,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:41,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:54:41,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:41,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 13:54:41,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:41,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:41,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:54:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:54:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:54:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:41,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:54:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:41,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:41,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:41,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:54:41,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:41,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-28 13:54:41,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:41,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:54:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:54:41,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 13:54:41,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:41,358 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 13:54:41,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239099471] [2020-10-28 13:54:41,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 13:54:41,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 13:54:41,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99144580] [2020-10-28 13:54:41,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:54:41,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:54:41,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:54:41,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:54:41,363 INFO L87 Difference]: Start difference. First operand 5814 states and 7375 transitions. Second operand 7 states. [2020-10-28 13:54:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:54:52,132 INFO L93 Difference]: Finished difference Result 17016 states and 22115 transitions. [2020-10-28 13:54:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 13:54:52,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-28 13:54:52,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:54:52,198 INFO L225 Difference]: With dead ends: 17016 [2020-10-28 13:54:52,198 INFO L226 Difference]: Without dead ends: 11208 [2020-10-28 13:54:52,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:54:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2020-10-28 13:54:52,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 10377. [2020-10-28 13:54:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10377 states. [2020-10-28 13:54:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10377 states to 10377 states and 12676 transitions. [2020-10-28 13:54:52,514 INFO L78 Accepts]: Start accepts. Automaton has 10377 states and 12676 transitions. Word has length 112 [2020-10-28 13:54:52,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:54:52,514 INFO L481 AbstractCegarLoop]: Abstraction has 10377 states and 12676 transitions. [2020-10-28 13:54:52,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:54:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10377 states and 12676 transitions. [2020-10-28 13:54:52,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-28 13:54:52,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:54:52,519 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:54:52,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 13:54:52,520 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:54:52,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:54:52,520 INFO L82 PathProgramCache]: Analyzing trace with hash 228303030, now seen corresponding path program 1 times [2020-10-28 13:54:52,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:54:52,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977389244] [2020-10-28 13:54:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:54:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:52,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:53,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:55,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:55,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-28 13:54:55,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:54:55,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2977 [2020-10-28 13:54:55,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:55,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:54:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 13:54:55,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 13:54:55,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:54:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:54:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:55,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:55,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:54:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 13:54:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:55,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:54:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:54:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 13:54:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:55,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:54:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:55,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:55,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:54:55,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-28 13:54:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:55,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:54:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:54:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:54:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:54:56,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-28 13:54:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:54:56,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:54:56,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:54:56,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 13:54:56,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:54:56,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 13:54:56,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:54:56,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:54:56,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:54:56,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 13:54:56,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:54:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 13:54:56,264 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 28 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 13:54:56,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977389244] [2020-10-28 13:54:56,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:54:56,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:54:56,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857164060] [2020-10-28 13:54:56,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:54:56,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:54:56,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:54:56,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:54:56,268 INFO L87 Difference]: Start difference. First operand 10377 states and 12676 transitions. Second operand 7 states. [2020-10-28 13:55:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:07,702 INFO L93 Difference]: Finished difference Result 24612 states and 29939 transitions. [2020-10-28 13:55:07,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 13:55:07,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-28 13:55:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:07,775 INFO L225 Difference]: With dead ends: 24612 [2020-10-28 13:55:07,775 INFO L226 Difference]: Without dead ends: 14241 [2020-10-28 13:55:07,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 13:55:07,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2020-10-28 13:55:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 13282. [2020-10-28 13:55:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13282 states. [2020-10-28 13:55:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13282 states to 13282 states and 15946 transitions. [2020-10-28 13:55:08,189 INFO L78 Accepts]: Start accepts. Automaton has 13282 states and 15946 transitions. Word has length 217 [2020-10-28 13:55:08,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:08,191 INFO L481 AbstractCegarLoop]: Abstraction has 13282 states and 15946 transitions. [2020-10-28 13:55:08,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:55:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 13282 states and 15946 transitions. [2020-10-28 13:55:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-10-28 13:55:08,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:08,213 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:08,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 13:55:08,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:08,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1141441264, now seen corresponding path program 1 times [2020-10-28 13:55:08,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:08,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649245085] [2020-10-28 13:55:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:08,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:08,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:09,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:10,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 623 [2020-10-28 13:55:13,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:55:13,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-28 13:55:13,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:13,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-28 13:55:13,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 309 [2020-10-28 13:55:13,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:13,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:13,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:13,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:13,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:55:13,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:13,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:13,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:13,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:13,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:13,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:13,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-28 13:55:13,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:13,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-28 13:55:13,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:13,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:13,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 13:55:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:13,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-28 13:55:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:55:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 705 [2020-10-28 13:55:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:14,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:55:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-28 13:55:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:14,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:55:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:14,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:14,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:55:14,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:14,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 13:55:14,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:14,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 13:55:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-28 13:55:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:15,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2020-10-28 13:55:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:15,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:15,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:55:15,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 13:55:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:15,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-28 13:55:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 229 proven. 89 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-28 13:55:16,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649245085] [2020-10-28 13:55:16,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:55:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:55:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325968253] [2020-10-28 13:55:16,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:55:16,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:16,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:55:16,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:55:16,048 INFO L87 Difference]: Start difference. First operand 13282 states and 15946 transitions. Second operand 8 states. [2020-10-28 13:55:31,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:31,229 INFO L93 Difference]: Finished difference Result 38269 states and 46652 transitions. [2020-10-28 13:55:31,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 13:55:31,230 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 605 [2020-10-28 13:55:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:31,292 INFO L225 Difference]: With dead ends: 38269 [2020-10-28 13:55:31,292 INFO L226 Difference]: Without dead ends: 21776 [2020-10-28 13:55:31,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-28 13:55:31,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21776 states. [2020-10-28 13:55:31,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21776 to 20979. [2020-10-28 13:55:31,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20979 states. [2020-10-28 13:55:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20979 states to 20979 states and 22937 transitions. [2020-10-28 13:55:31,883 INFO L78 Accepts]: Start accepts. Automaton has 20979 states and 22937 transitions. Word has length 605 [2020-10-28 13:55:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:31,884 INFO L481 AbstractCegarLoop]: Abstraction has 20979 states and 22937 transitions. [2020-10-28 13:55:31,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:55:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 20979 states and 22937 transitions. [2020-10-28 13:55:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2020-10-28 13:55:31,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:31,920 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:31,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 13:55:31,920 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:31,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:31,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1432016370, now seen corresponding path program 1 times [2020-10-28 13:55:31,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:31,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035977676] [2020-10-28 13:55:31,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:32,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:32,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:37,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:37,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 968 [2020-10-28 13:55:37,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:55:37,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 13:55:37,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:37,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-28 13:55:37,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 13:55:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:37,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:37,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:37,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:37,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:37,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:37,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:55:37,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:37,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:37,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:37,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:37,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:37,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:37,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:55:37,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:37,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:37,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:37,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:55:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:37,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:37,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:37,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:55:37,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:37,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:37,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:37,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:55:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:37,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:37,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:37,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:55:37,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:37,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 13:55:37,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:37,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:55:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:38,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:38,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:38,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 13:55:38,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:38,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:55:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:38,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:38,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:55:38,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:38,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 13:55:38,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:38,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 13:55:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:38,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:55:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:38,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:38,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:55:38,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:38,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 13:55:38,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 224 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-28 13:55:39,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035977676] [2020-10-28 13:55:39,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:55:39,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:55:39,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132262736] [2020-10-28 13:55:39,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:55:39,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:39,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:55:39,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:55:39,603 INFO L87 Difference]: Start difference. First operand 20979 states and 22937 transitions. Second operand 7 states. [2020-10-28 13:55:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:55:47,732 INFO L93 Difference]: Finished difference Result 49232 states and 54816 transitions. [2020-10-28 13:55:47,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:55:47,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 946 [2020-10-28 13:55:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:55:47,834 INFO L225 Difference]: With dead ends: 49232 [2020-10-28 13:55:47,834 INFO L226 Difference]: Without dead ends: 28259 [2020-10-28 13:55:47,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:55:47,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28259 states. [2020-10-28 13:55:48,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28259 to 28176. [2020-10-28 13:55:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28176 states. [2020-10-28 13:55:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28176 states to 28176 states and 31124 transitions. [2020-10-28 13:55:48,683 INFO L78 Accepts]: Start accepts. Automaton has 28176 states and 31124 transitions. Word has length 946 [2020-10-28 13:55:48,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:55:48,686 INFO L481 AbstractCegarLoop]: Abstraction has 28176 states and 31124 transitions. [2020-10-28 13:55:48,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:55:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 28176 states and 31124 transitions. [2020-10-28 13:55:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2020-10-28 13:55:48,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:55:48,741 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:55:48,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 13:55:48,741 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:55:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:55:48,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1241479132, now seen corresponding path program 1 times [2020-10-28 13:55:48,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:55:48,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143771225] [2020-10-28 13:55:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:55:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:49,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:49,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1067 [2020-10-28 13:55:54,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:55:54,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-28 13:55:54,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-28 13:55:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 13:55:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:55:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:55:54,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:55:54,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:54,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:55:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:55:54,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:54,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:55:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:55:54,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 13:55:54,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:54,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:54,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:54,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:55:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:54,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:54,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:55:54,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:55:54,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:54,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:54,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:55,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:55:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:55,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:55,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:55,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:55,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:55,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 13:55:55,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:55:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:55,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:55,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:55,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:55:55,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 13:55:55,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:55,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:55:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:55,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:55:55,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:55,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:55:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:55,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:55,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:55,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 13:55:55,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:55:55,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:55,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:55:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:55:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 13:55:55,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:55,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-28 13:55:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:55:55,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:55:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:55:55,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 13:55:55,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:55:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 13:55:55,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:55:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 355 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-28 13:55:56,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143771225] [2020-10-28 13:55:56,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:55:56,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:55:56,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309458579] [2020-10-28 13:55:56,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:55:56,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:55:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:55:56,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:55:56,607 INFO L87 Difference]: Start difference. First operand 28176 states and 31124 transitions. Second operand 8 states. [2020-10-28 13:56:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:10,266 INFO L93 Difference]: Finished difference Result 62851 states and 70294 transitions. [2020-10-28 13:56:10,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 13:56:10,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1043 [2020-10-28 13:56:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:10,492 INFO L225 Difference]: With dead ends: 62851 [2020-10-28 13:56:10,493 INFO L226 Difference]: Without dead ends: 34681 [2020-10-28 13:56:10,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-28 13:56:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34681 states. [2020-10-28 13:56:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34681 to 34633. [2020-10-28 13:56:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34633 states. [2020-10-28 13:56:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34633 states to 34633 states and 38053 transitions. [2020-10-28 13:56:11,141 INFO L78 Accepts]: Start accepts. Automaton has 34633 states and 38053 transitions. Word has length 1043 [2020-10-28 13:56:11,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:11,144 INFO L481 AbstractCegarLoop]: Abstraction has 34633 states and 38053 transitions. [2020-10-28 13:56:11,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:56:11,144 INFO L276 IsEmpty]: Start isEmpty. Operand 34633 states and 38053 transitions. [2020-10-28 13:56:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1138 [2020-10-28 13:56:11,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:11,165 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:11,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 13:56:11,166 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:11,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:11,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1062207848, now seen corresponding path program 1 times [2020-10-28 13:56:11,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:11,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084817102] [2020-10-28 13:56:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:11,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:11,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:14,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:15,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:16,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:16,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1161 [2020-10-28 13:56:16,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:56:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 13:56:16,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:16,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 13:56:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-28 13:56:16,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 13:56:16,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:16,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:16,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:16,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:16,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:16,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 13:56:16,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:16,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:16,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:16,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:16,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:16,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:16,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:16,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:16,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:16,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:17,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:17,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:17,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:17,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:17,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:17,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:17,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:56:17,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:17,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:17,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:17,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:56:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:17,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 13:56:17,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-28 13:56:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:17,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:17,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:17,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 13:56:17,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 13:56:17,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-28 13:56:17,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:17,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:17,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:17,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-28 13:56:17,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 489 proven. 6 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-10-28 13:56:18,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084817102] [2020-10-28 13:56:18,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:18,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 13:56:18,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389930234] [2020-10-28 13:56:18,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 13:56:18,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:18,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 13:56:18,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:56:18,851 INFO L87 Difference]: Start difference. First operand 34633 states and 38053 transitions. Second operand 6 states. [2020-10-28 13:56:27,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:27,817 INFO L93 Difference]: Finished difference Result 82802 states and 92824 transitions. [2020-10-28 13:56:27,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 13:56:27,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1137 [2020-10-28 13:56:27,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:27,947 INFO L225 Difference]: With dead ends: 82802 [2020-10-28 13:56:27,947 INFO L226 Difference]: Without dead ends: 48175 [2020-10-28 13:56:27,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:56:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48175 states. [2020-10-28 13:56:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48175 to 48099. [2020-10-28 13:56:28,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48099 states. [2020-10-28 13:56:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48099 states to 48099 states and 53063 transitions. [2020-10-28 13:56:28,937 INFO L78 Accepts]: Start accepts. Automaton has 48099 states and 53063 transitions. Word has length 1137 [2020-10-28 13:56:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:28,938 INFO L481 AbstractCegarLoop]: Abstraction has 48099 states and 53063 transitions. [2020-10-28 13:56:28,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 13:56:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 48099 states and 53063 transitions. [2020-10-28 13:56:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1173 [2020-10-28 13:56:28,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:28,960 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:28,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 13:56:28,961 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:28,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:28,962 INFO L82 PathProgramCache]: Analyzing trace with hash 260797078, now seen corresponding path program 1 times [2020-10-28 13:56:28,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:28,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [121007406] [2020-10-28 13:56:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:29,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:29,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:32,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:33,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1198 [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-28 13:56:34,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 13:56:34,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:34,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:34,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:34,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:34,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:34,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:34,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:34,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:34,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:34,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:34,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:34,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:34,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:34,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:34,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:35,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:35,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:35,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-28 13:56:35,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:35,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:35,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:35,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 13:56:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:35,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:56:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:35,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:35,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-28 13:56:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:35,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-28 13:56:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:35,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:35,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:35,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 13:56:35,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:35,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 13:56:35,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:35,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-28 13:56:35,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:35,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-28 13:56:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:35,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:35,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 13:56:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:35,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 332 proven. 190 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2020-10-28 13:56:36,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [121007406] [2020-10-28 13:56:36,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:36,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 13:56:36,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816959099] [2020-10-28 13:56:36,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 13:56:36,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:36,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 13:56:36,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 13:56:36,575 INFO L87 Difference]: Start difference. First operand 48099 states and 53063 transitions. Second operand 7 states. [2020-10-28 13:56:45,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:56:45,888 INFO L93 Difference]: Finished difference Result 103275 states and 113749 transitions. [2020-10-28 13:56:45,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 13:56:45,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1172 [2020-10-28 13:56:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:56:46,032 INFO L225 Difference]: With dead ends: 103275 [2020-10-28 13:56:46,032 INFO L226 Difference]: Without dead ends: 55182 [2020-10-28 13:56:46,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 13:56:46,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55182 states. [2020-10-28 13:56:47,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55182 to 52343. [2020-10-28 13:56:47,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52343 states. [2020-10-28 13:56:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52343 states to 52343 states and 57397 transitions. [2020-10-28 13:56:47,404 INFO L78 Accepts]: Start accepts. Automaton has 52343 states and 57397 transitions. Word has length 1172 [2020-10-28 13:56:47,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:56:47,406 INFO L481 AbstractCegarLoop]: Abstraction has 52343 states and 57397 transitions. [2020-10-28 13:56:47,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 13:56:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 52343 states and 57397 transitions. [2020-10-28 13:56:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2020-10-28 13:56:47,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:56:47,431 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:56:47,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 13:56:47,431 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:56:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:56:47,432 INFO L82 PathProgramCache]: Analyzing trace with hash -960405861, now seen corresponding path program 1 times [2020-10-28 13:56:47,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:56:47,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732895222] [2020-10-28 13:56:47,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:56:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:47,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:48,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:48,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:52,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:52,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1232 [2020-10-28 13:56:52,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 13:56:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-28 13:56:52,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:52,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 983 [2020-10-28 13:56:52,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-28 13:56:52,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:56:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:56:53,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:56:53,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:56:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:56:53,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:56:53,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:56:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:56:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:56:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:53,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:53,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:53,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 13:56:53,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:53,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 13:56:53,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:53,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:53,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:56:53,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:53,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:56:53,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:53,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-28 13:56:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:54,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:54,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:54,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 13:56:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 13:56:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:54,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:56:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:56:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 13:56:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-28 13:56:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:56:54,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:56:54,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:56:54,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-28 13:56:54,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:56:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-28 13:56:54,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:56:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 625 proven. 2 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2020-10-28 13:56:55,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732895222] [2020-10-28 13:56:55,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:56:55,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 13:56:55,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055796432] [2020-10-28 13:56:55,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 13:56:55,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:56:55,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 13:56:55,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 13:56:55,777 INFO L87 Difference]: Start difference. First operand 52343 states and 57397 transitions. Second operand 8 states. [2020-10-28 13:57:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:57:09,240 INFO L93 Difference]: Finished difference Result 115402 states and 126640 transitions. [2020-10-28 13:57:09,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 13:57:09,243 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1208 [2020-10-28 13:57:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:57:09,401 INFO L225 Difference]: With dead ends: 115402 [2020-10-28 13:57:09,401 INFO L226 Difference]: Without dead ends: 63065 [2020-10-28 13:57:09,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-28 13:57:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63065 states. [2020-10-28 13:57:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63065 to 60899. [2020-10-28 13:57:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60899 states. [2020-10-28 13:57:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60899 states to 60899 states and 66632 transitions. [2020-10-28 13:57:10,935 INFO L78 Accepts]: Start accepts. Automaton has 60899 states and 66632 transitions. Word has length 1208 [2020-10-28 13:57:10,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:57:10,936 INFO L481 AbstractCegarLoop]: Abstraction has 60899 states and 66632 transitions. [2020-10-28 13:57:10,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 13:57:10,936 INFO L276 IsEmpty]: Start isEmpty. Operand 60899 states and 66632 transitions. [2020-10-28 13:57:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1270 [2020-10-28 13:57:10,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:57:10,966 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:57:10,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 13:57:10,967 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:57:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:57:10,968 INFO L82 PathProgramCache]: Analyzing trace with hash 564840272, now seen corresponding path program 1 times [2020-10-28 13:57:10,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:57:10,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983266996] [2020-10-28 13:57:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:57:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1293 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1441 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1269 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 13:57:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:13,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:13,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:13,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 13:57:13,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:13,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:13,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:13,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:13,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:13,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:14,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:14,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-28 13:57:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:14,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:14,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 13:57:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-28 13:57:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 61 proven. 4 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2020-10-28 13:57:14,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983266996] [2020-10-28 13:57:14,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 13:57:14,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 13:57:14,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092595011] [2020-10-28 13:57:14,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 13:57:14,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 13:57:14,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 13:57:14,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 13:57:14,951 INFO L87 Difference]: Start difference. First operand 60899 states and 66632 transitions. Second operand 5 states. [2020-10-28 13:57:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 13:57:23,560 INFO L93 Difference]: Finished difference Result 123920 states and 135929 transitions. [2020-10-28 13:57:23,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 13:57:23,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1269 [2020-10-28 13:57:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 13:57:23,736 INFO L225 Difference]: With dead ends: 123920 [2020-10-28 13:57:23,736 INFO L226 Difference]: Without dead ends: 63027 [2020-10-28 13:57:23,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 13:57:23,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63027 states. [2020-10-28 13:57:24,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63027 to 62992. [2020-10-28 13:57:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62992 states. [2020-10-28 13:57:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62992 states to 62992 states and 68663 transitions. [2020-10-28 13:57:25,042 INFO L78 Accepts]: Start accepts. Automaton has 62992 states and 68663 transitions. Word has length 1269 [2020-10-28 13:57:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 13:57:25,044 INFO L481 AbstractCegarLoop]: Abstraction has 62992 states and 68663 transitions. [2020-10-28 13:57:25,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 13:57:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 62992 states and 68663 transitions. [2020-10-28 13:57:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1385 [2020-10-28 13:57:25,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 13:57:25,084 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 13:57:25,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 13:57:25,085 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 13:57:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 13:57:25,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1729063602, now seen corresponding path program 1 times [2020-10-28 13:57:25,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 13:57:25,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949481596] [2020-10-28 13:57:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 13:57:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:25,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:28,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:30,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:30,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1412 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1163 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-28 13:57:30,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:30,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 13:57:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:30,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:30,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:30,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:30,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:30,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 13:57:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:30,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:30,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:30,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-28 13:57:30,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:30,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 13:57:30,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:30,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:30,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:30,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:30,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:30,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:30,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-28 13:57:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:31,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:31,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 13:57:31,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:31,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-28 13:57:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:31,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-28 13:57:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:31,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:31,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:31,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-28 13:57:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:31,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:31,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-28 13:57:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 13:57:31,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 13:57:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 13:57:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 13:57:31,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 13:57:31,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1075 [2020-10-28 13:57:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 13:57:31,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking...