/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:30:01,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:30:01,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:30:02,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:30:02,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:30:02,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:30:02,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:30:02,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:30:02,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:30:02,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:30:02,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:30:02,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:30:02,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:30:02,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:30:02,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:30:02,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:30:02,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:30:02,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:30:02,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:30:02,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:30:02,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:30:02,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:30:02,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:30:02,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:30:02,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:30:02,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:30:02,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:30:02,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:30:02,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:30:02,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:30:02,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:30:02,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:30:02,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:30:02,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:30:02,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:30:02,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:30:02,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:30:02,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:30:02,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:30:02,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:30:02,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:30:02,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:30:02,205 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:30:02,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:30:02,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:30:02,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:30:02,211 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:30:02,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:30:02,211 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:30:02,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:30:02,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:30:02,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:30:02,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:30:02,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:30:02,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:30:02,214 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:30:02,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:30:02,214 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:30:02,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:30:02,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:30:02,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:30:02,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:30:02,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:30:02,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:30:02,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:30:02,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:30:02,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:30:02,216 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:30:02,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:30:02,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:30:02,217 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:30:02,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:30:02,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:30:02,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:30:02,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:30:02,687 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:30:02,688 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:30:02,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-29 08:30:02,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13ada99e1/793f9fa3f63742f8bee40dcbd07978d4/FLAGf47e5f440 [2020-10-29 08:30:03,775 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:30:03,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label14.c [2020-10-29 08:30:03,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13ada99e1/793f9fa3f63742f8bee40dcbd07978d4/FLAGf47e5f440 [2020-10-29 08:30:04,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13ada99e1/793f9fa3f63742f8bee40dcbd07978d4 [2020-10-29 08:30:04,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:30:04,312 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:30:04,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:30:04,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:30:04,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:30:04,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:30:04" (1/1) ... [2020-10-29 08:30:04,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c76db6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:04, skipping insertion in model container [2020-10-29 08:30:04,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:30:04" (1/1) ... [2020-10-29 08:30:04,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:30:04,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:30:05,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:30:05,791 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:30:06,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:30:06,465 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:30:06,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06 WrapperNode [2020-10-29 08:30:06,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:30:06,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:30:06,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:30:06,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:30:06,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... [2020-10-29 08:30:06,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:30:06,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:30:06,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:30:06,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:30:06,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:30:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:30:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:30:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:30:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:30:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:30:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:30:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:30:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:30:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:30:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:30:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:30:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:30:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:30:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:30:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:30:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:30:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:30:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:30:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:30:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:30:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:30:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:30:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:30:10,736 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:30:10,737 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:30:10,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:30:10 BoogieIcfgContainer [2020-10-29 08:30:10,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:30:10,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:30:10,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:30:10,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:30:10,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:30:04" (1/3) ... [2020-10-29 08:30:10,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:30:10, skipping insertion in model container [2020-10-29 08:30:10,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:30:06" (2/3) ... [2020-10-29 08:30:10,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2286b492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:30:10, skipping insertion in model container [2020-10-29 08:30:10,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:30:10" (3/3) ... [2020-10-29 08:30:10,753 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label14.c [2020-10-29 08:30:10,766 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:30:10,772 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:30:10,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:30:10,828 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:30:10,828 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:30:10,828 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:30:10,828 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:30:10,828 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:30:10,828 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:30:10,829 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:30:10,829 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:30:10,863 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:30:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 08:30:10,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:30:10,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:30:10,874 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:30:10,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:30:10,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1123354336, now seen corresponding path program 1 times [2020-10-29 08:30:10,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:30:10,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [856818752] [2020-10-29 08:30:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:30:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:11,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:11,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:11,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-29 08:30:11,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:11,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-29 08:30:11,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:11,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:30:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:30:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 08:30:11,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 08:30:11,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:30:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:11,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:11,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:11,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:30:11,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:11,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:30:11,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:11,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:30:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:30:11,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:30:11,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:30:11,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:30:11,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [856818752] [2020-10-29 08:30:11,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:30:11,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:30:11,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685345203] [2020-10-29 08:30:11,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:30:11,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:30:11,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:30:12,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:30:12,002 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 5 states. [2020-10-29 08:30:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:30:24,152 INFO L93 Difference]: Finished difference Result 2989 states and 5773 transitions. [2020-10-29 08:30:24,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:30:24,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2020-10-29 08:30:24,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:30:24,205 INFO L225 Difference]: With dead ends: 2989 [2020-10-29 08:30:24,206 INFO L226 Difference]: Without dead ends: 2143 [2020-10-29 08:30:24,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:30:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2143 states. [2020-10-29 08:30:24,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2143 to 2136. [2020-10-29 08:30:24,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2020-10-29 08:30:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3228 transitions. [2020-10-29 08:30:24,417 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3228 transitions. Word has length 57 [2020-10-29 08:30:24,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:30:24,418 INFO L481 AbstractCegarLoop]: Abstraction has 2136 states and 3228 transitions. [2020-10-29 08:30:24,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:30:24,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3228 transitions. [2020-10-29 08:30:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 08:30:24,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:30:24,425 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:30:24,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:30:24,426 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:30:24,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:30:24,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1371629657, now seen corresponding path program 1 times [2020-10-29 08:30:24,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:30:24,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435798745] [2020-10-29 08:30:24,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:30:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:24,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:24,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:24,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:30:24,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:24,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-10-29 08:30:24,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:24,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:30:24,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:30:24,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 08:30:24,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:30:25,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:30:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:25,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:25,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:25,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:30:25,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:25,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:30:25,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:25,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:30:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:30:25,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:30:25,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 08:30:25,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:30:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:25,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:25,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:25,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:30:25,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:25,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 08:30:25,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:25,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:25,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:30:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:30:25,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:30:25,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:30:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:30:25,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435798745] [2020-10-29 08:30:25,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:30:25,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:30:25,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919302037] [2020-10-29 08:30:25,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:30:25,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:30:25,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:30:25,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:30:25,467 INFO L87 Difference]: Start difference. First operand 2136 states and 3228 transitions. Second operand 7 states. [2020-10-29 08:30:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:30:36,289 INFO L93 Difference]: Finished difference Result 6479 states and 9854 transitions. [2020-10-29 08:30:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:30:36,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-29 08:30:36,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:30:36,324 INFO L225 Difference]: With dead ends: 6479 [2020-10-29 08:30:36,324 INFO L226 Difference]: Without dead ends: 4349 [2020-10-29 08:30:36,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:30:36,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4349 states. [2020-10-29 08:30:36,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4349 to 4302. [2020-10-29 08:30:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4302 states. [2020-10-29 08:30:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 5787 transitions. [2020-10-29 08:30:36,472 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 5787 transitions. Word has length 127 [2020-10-29 08:30:36,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:30:36,475 INFO L481 AbstractCegarLoop]: Abstraction has 4302 states and 5787 transitions. [2020-10-29 08:30:36,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:30:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 5787 transitions. [2020-10-29 08:30:36,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-29 08:30:36,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:30:36,488 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:30:36,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:30:36,491 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:30:36,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:30:36,493 INFO L82 PathProgramCache]: Analyzing trace with hash -180418631, now seen corresponding path program 1 times [2020-10-29 08:30:36,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:30:36,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192025477] [2020-10-29 08:30:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:30:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:36,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:37,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:30:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:30:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 08:30:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:30:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:30:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:37,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:30:37,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:30:37,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:37,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:30:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:30:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:30:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:30:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:30:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:37,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:30:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:30:37,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:37,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:30:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:30:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:30:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:30:37,738 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:30:37,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192025477] [2020-10-29 08:30:37,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:30:37,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:30:37,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106508106] [2020-10-29 08:30:37,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:30:37,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:30:37,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:30:37,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:30:37,746 INFO L87 Difference]: Start difference. First operand 4302 states and 5787 transitions. Second operand 7 states. [2020-10-29 08:30:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:30:47,215 INFO L93 Difference]: Finished difference Result 10101 states and 13408 transitions. [2020-10-29 08:30:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:30:47,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2020-10-29 08:30:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:30:47,248 INFO L225 Difference]: With dead ends: 10101 [2020-10-29 08:30:47,249 INFO L226 Difference]: Without dead ends: 5805 [2020-10-29 08:30:47,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:30:47,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5805 states. [2020-10-29 08:30:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5805 to 5776. [2020-10-29 08:30:47,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5776 states. [2020-10-29 08:30:47,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5776 states to 5776 states and 7435 transitions. [2020-10-29 08:30:47,422 INFO L78 Accepts]: Start accepts. Automaton has 5776 states and 7435 transitions. Word has length 154 [2020-10-29 08:30:47,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:30:47,423 INFO L481 AbstractCegarLoop]: Abstraction has 5776 states and 7435 transitions. [2020-10-29 08:30:47,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:30:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5776 states and 7435 transitions. [2020-10-29 08:30:47,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-29 08:30:47,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:30:47,428 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:30:47,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:30:47,428 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:30:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:30:47,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1958948437, now seen corresponding path program 1 times [2020-10-29 08:30:47,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:30:47,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275868881] [2020-10-29 08:30:47,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:30:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:47,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:48,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:48,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-29 08:30:48,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:30:48,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1220 [2020-10-29 08:30:48,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:48,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:30:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:30:48,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:30:48,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:30:48,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:30:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:48,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:48,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:48,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:30:48,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:48,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:30:48,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:48,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:30:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:30:48,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:30:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:30:48,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:30:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:30:48,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:30:49,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:30:49,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 08:30:49,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:30:49,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-29 08:30:49,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:30:49,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:30:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:30:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:30:49,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 08:30:49,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:30:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:30:49,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275868881] [2020-10-29 08:30:49,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:30:49,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:30:49,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264932845] [2020-10-29 08:30:49,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:30:49,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:30:49,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:30:49,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:30:49,351 INFO L87 Difference]: Start difference. First operand 5776 states and 7435 transitions. Second operand 8 states. [2020-10-29 08:31:03,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:31:03,583 INFO L93 Difference]: Finished difference Result 14621 states and 20263 transitions. [2020-10-29 08:31:03,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:31:03,584 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 189 [2020-10-29 08:31:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:31:03,632 INFO L225 Difference]: With dead ends: 14621 [2020-10-29 08:31:03,632 INFO L226 Difference]: Without dead ends: 9553 [2020-10-29 08:31:03,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:31:03,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9553 states. [2020-10-29 08:31:03,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9553 to 9476. [2020-10-29 08:31:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9476 states. [2020-10-29 08:31:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9476 states to 9476 states and 11851 transitions. [2020-10-29 08:31:03,931 INFO L78 Accepts]: Start accepts. Automaton has 9476 states and 11851 transitions. Word has length 189 [2020-10-29 08:31:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:31:03,933 INFO L481 AbstractCegarLoop]: Abstraction has 9476 states and 11851 transitions. [2020-10-29 08:31:03,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:31:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 9476 states and 11851 transitions. [2020-10-29 08:31:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-29 08:31:03,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:31:03,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:31:03,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:31:03,942 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:31:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:31:03,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1652741000, now seen corresponding path program 1 times [2020-10-29 08:31:03,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:31:03,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192235756] [2020-10-29 08:31:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:31:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:04,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:04,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:06,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:06,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-29 08:31:06,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:31:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2264 [2020-10-29 08:31:06,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:06,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 08:31:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:31:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 345 [2020-10-29 08:31:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:06,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:31:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:06,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:06,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:06,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:31:06,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:06,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:31:06,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:31:06,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:31:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:06,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:06,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:06,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:31:06,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:06,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-29 08:31:06,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:07,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:07,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:31:07,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:31:07,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-29 08:31:07,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:07,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:31:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:07,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:07,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:07,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:31:07,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:07,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-29 08:31:07,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:07,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:31:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:31:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:31:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 97 proven. 94 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:31:07,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192235756] [2020-10-29 08:31:07,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:31:07,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:31:07,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695704407] [2020-10-29 08:31:07,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 08:31:07,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:31:07,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 08:31:07,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 08:31:07,773 INFO L87 Difference]: Start difference. First operand 9476 states and 11851 transitions. Second operand 9 states. [2020-10-29 08:31:28,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:31:28,794 INFO L93 Difference]: Finished difference Result 28621 states and 38519 transitions. [2020-10-29 08:31:28,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 08:31:28,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 340 [2020-10-29 08:31:28,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:31:28,893 INFO L225 Difference]: With dead ends: 28621 [2020-10-29 08:31:28,893 INFO L226 Difference]: Without dead ends: 21273 [2020-10-29 08:31:28,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:31:28,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21273 states. [2020-10-29 08:31:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21273 to 19730. [2020-10-29 08:31:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19730 states. [2020-10-29 08:31:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19730 states to 19730 states and 24097 transitions. [2020-10-29 08:31:29,486 INFO L78 Accepts]: Start accepts. Automaton has 19730 states and 24097 transitions. Word has length 340 [2020-10-29 08:31:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:31:29,487 INFO L481 AbstractCegarLoop]: Abstraction has 19730 states and 24097 transitions. [2020-10-29 08:31:29,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 08:31:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 19730 states and 24097 transitions. [2020-10-29 08:31:29,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-10-29 08:31:29,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:31:29,498 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:31:29,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:31:29,498 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:31:29,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:31:29,499 INFO L82 PathProgramCache]: Analyzing trace with hash 841864903, now seen corresponding path program 1 times [2020-10-29 08:31:29,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:31:29,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553042201] [2020-10-29 08:31:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:31:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:29,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:29,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:29,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:34,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:34,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 454 [2020-10-29 08:31:34,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:31:34,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:31:34,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:34,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:31:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:31:34,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 08:31:34,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:34,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:31:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:34,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:34,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:34,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:31:34,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:34,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:31:34,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:34,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:34,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:31:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:31:34,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:31:34,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:34,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:31:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:34,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:34,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:34,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:31:34,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:34,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 08:31:34,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:34,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:31:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:31:34,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:31:34,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:31:35,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-29 08:31:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:35,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:35,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:35,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:31:35,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:35,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-29 08:31:35,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:35,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:31:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:31:35,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:31:35,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:31:35,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-29 08:31:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:35,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:35,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:35,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 08:31:35,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:31:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:35,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:31:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-29 08:31:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:31:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 270 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-29 08:31:35,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553042201] [2020-10-29 08:31:35,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:31:35,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:31:35,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502332111] [2020-10-29 08:31:35,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:31:35,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:31:35,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:31:35,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:31:35,614 INFO L87 Difference]: Start difference. First operand 19730 states and 24097 transitions. Second operand 7 states. [2020-10-29 08:31:52,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:31:52,110 INFO L93 Difference]: Finished difference Result 46330 states and 58162 transitions. [2020-10-29 08:31:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:31:52,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 438 [2020-10-29 08:31:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:31:52,196 INFO L225 Difference]: With dead ends: 46330 [2020-10-29 08:31:52,196 INFO L226 Difference]: Without dead ends: 24811 [2020-10-29 08:31:52,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:31:52,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24811 states. [2020-10-29 08:31:52,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24811 to 23233. [2020-10-29 08:31:52,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23233 states. [2020-10-29 08:31:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23233 states to 23233 states and 26430 transitions. [2020-10-29 08:31:53,022 INFO L78 Accepts]: Start accepts. Automaton has 23233 states and 26430 transitions. Word has length 438 [2020-10-29 08:31:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:31:53,023 INFO L481 AbstractCegarLoop]: Abstraction has 23233 states and 26430 transitions. [2020-10-29 08:31:53,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:31:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 23233 states and 26430 transitions. [2020-10-29 08:31:53,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-29 08:31:53,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:31:53,057 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:31:53,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:31:53,057 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:31:53,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:31:53,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1200231172, now seen corresponding path program 1 times [2020-10-29 08:31:53,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:31:53,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1101506054] [2020-10-29 08:31:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:31:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:53,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:54,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:58,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:58,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 904 [2020-10-29 08:31:58,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:31:58,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 08:31:58,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:58,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 08:31:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:31:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 661 [2020-10-29 08:31:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:31:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:31:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:58,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:31:58,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:31:58,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:31:58,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:31:58,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:31:58,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:31:58,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:31:58,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:31:58,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:31:58,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:31:58,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:31:58,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:31:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:31:59,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:00,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:32:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1310 [2020-10-29 08:32:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:00,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:32:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-29 08:32:00,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:00,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:32:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:00,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:00,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:00,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:32:00,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:00,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-10-29 08:32:00,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:00,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:32:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:00,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-29 08:32:00,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:01,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:32:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:01,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:01,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:32:01,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:01,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:32:01,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:01,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:01,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:01,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 08:32:01,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:01,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:32:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:01,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:01,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:32:01,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:32:01,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:01,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 08:32:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:02,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 657 [2020-10-29 08:32:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:02,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:02,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:02,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 08:32:02,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:02,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2020-10-29 08:32:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:02,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:02,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:02,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:32:02,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:02,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:32:02,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:02,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:32:02,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:02,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:03,331 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 205 proven. 449 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-29 08:32:03,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1101506054] [2020-10-29 08:32:03,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:32:03,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:32:03,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58663018] [2020-10-29 08:32:03,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:32:03,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:32:03,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:32:03,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:32:03,335 INFO L87 Difference]: Start difference. First operand 23233 states and 26430 transitions. Second operand 8 states. [2020-10-29 08:32:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:32:13,529 INFO L93 Difference]: Finished difference Result 45283 states and 51852 transitions. [2020-10-29 08:32:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:32:13,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 882 [2020-10-29 08:32:13,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:32:13,598 INFO L225 Difference]: With dead ends: 45283 [2020-10-29 08:32:13,599 INFO L226 Difference]: Without dead ends: 23468 [2020-10-29 08:32:13,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:32:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23468 states. [2020-10-29 08:32:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23468 to 23233. [2020-10-29 08:32:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23233 states. [2020-10-29 08:32:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23233 states to 23233 states and 26435 transitions. [2020-10-29 08:32:14,105 INFO L78 Accepts]: Start accepts. Automaton has 23233 states and 26435 transitions. Word has length 882 [2020-10-29 08:32:14,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:32:14,106 INFO L481 AbstractCegarLoop]: Abstraction has 23233 states and 26435 transitions. [2020-10-29 08:32:14,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:32:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 23233 states and 26435 transitions. [2020-10-29 08:32:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2020-10-29 08:32:14,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:32:14,149 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:32:14,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:32:14,150 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:32:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:32:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash -873232245, now seen corresponding path program 1 times [2020-10-29 08:32:14,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:32:14,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610411703] [2020-10-29 08:32:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:32:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:14,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:16,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:16,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1010 [2020-10-29 08:32:16,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:16,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1769 [2020-10-29 08:32:16,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:16,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:16,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:32:16,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 08:32:16,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:16,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:32:16,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:16,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:16,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:32:16,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:16,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:32:16,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:16,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:16,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:16,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:16,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:16,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:16,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:32:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:16,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:16,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:16,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:32:16,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:16,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 08:32:16,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:16,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:16,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:16,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:16,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:16,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:16,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:32:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:16,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:16,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:16,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:32:16,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:16,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 08:32:16,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:16,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:16,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:32:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:16,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:16,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:32:16,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:16,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:32:16,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:16,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:17,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:32:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:17,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:17,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:32:17,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:17,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-29 08:32:17,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:17,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:17,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:32:17,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:17,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:32:17,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:17,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:32:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:17,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:17,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:17,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:32:17,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:17,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:32:17,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:17,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:32:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:17,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:32:17,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:17,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:32:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:17,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:17,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:17,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:32:17,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:17,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 08:32:17,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:17,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:17,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:17,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:32:17,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:18,670 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-29 08:32:18,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610411703] [2020-10-29 08:32:18,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:32:18,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:32:18,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864379133] [2020-10-29 08:32:18,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:32:18,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:32:18,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:32:18,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:32:18,673 INFO L87 Difference]: Start difference. First operand 23233 states and 26435 transitions. Second operand 7 states. [2020-10-29 08:32:34,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:32:34,420 INFO L93 Difference]: Finished difference Result 53246 states and 62517 transitions. [2020-10-29 08:32:34,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:32:34,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 988 [2020-10-29 08:32:34,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:32:34,513 INFO L225 Difference]: With dead ends: 53246 [2020-10-29 08:32:34,514 INFO L226 Difference]: Without dead ends: 30722 [2020-10-29 08:32:34,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:32:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30722 states. [2020-10-29 08:32:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30722 to 29779. [2020-10-29 08:32:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29779 states. [2020-10-29 08:32:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29779 states to 29779 states and 33761 transitions. [2020-10-29 08:32:35,253 INFO L78 Accepts]: Start accepts. Automaton has 29779 states and 33761 transitions. Word has length 988 [2020-10-29 08:32:35,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:32:35,256 INFO L481 AbstractCegarLoop]: Abstraction has 29779 states and 33761 transitions. [2020-10-29 08:32:35,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:32:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 29779 states and 33761 transitions. [2020-10-29 08:32:35,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2020-10-29 08:32:35,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:32:35,310 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:32:35,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:32:35,310 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:32:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:32:35,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1478637274, now seen corresponding path program 1 times [2020-10-29 08:32:35,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:32:35,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443389853] [2020-10-29 08:32:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:32:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:35,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:40,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1088 [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:40,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-29 08:32:40,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 08:32:40,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:40,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:32:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:40,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:40,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:40,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:40,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:40,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:32:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:40,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:40,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:32:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:32:41,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:32:41,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:41,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:32:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:41,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:41,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:32:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:41,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:41,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:41,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:41,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:32:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:32:41,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:32:41,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:32:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:32:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:32:41,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:32:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:32:41,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:32:41,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:41,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:32:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:41,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:32:41,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:32:41,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:32:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 08:32:41,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:32:41,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:32:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:32:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:32:41,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:32:41,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:32:42,572 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-29 08:32:42,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443389853] [2020-10-29 08:32:42,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:32:42,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:32:42,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354977506] [2020-10-29 08:32:42,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:32:42,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:32:42,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:32:42,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:32:42,576 INFO L87 Difference]: Start difference. First operand 29779 states and 33761 transitions. Second operand 7 states. [2020-10-29 08:32:56,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:32:56,894 INFO L93 Difference]: Finished difference Result 65511 states and 76339 transitions. [2020-10-29 08:32:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:32:56,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1064 [2020-10-29 08:32:56,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:32:56,990 INFO L225 Difference]: With dead ends: 65511 [2020-10-29 08:32:56,990 INFO L226 Difference]: Without dead ends: 37150 [2020-10-29 08:32:57,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:32:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37150 states. [2020-10-29 08:32:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37150 to 36986. [2020-10-29 08:32:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36986 states. [2020-10-29 08:32:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36986 states to 36986 states and 41808 transitions. [2020-10-29 08:32:57,743 INFO L78 Accepts]: Start accepts. Automaton has 36986 states and 41808 transitions. Word has length 1064 [2020-10-29 08:32:57,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:32:57,745 INFO L481 AbstractCegarLoop]: Abstraction has 36986 states and 41808 transitions. [2020-10-29 08:32:57,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:32:57,745 INFO L276 IsEmpty]: Start isEmpty. Operand 36986 states and 41808 transitions. [2020-10-29 08:32:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2020-10-29 08:32:57,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:32:57,763 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:32:57,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:32:57,763 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:32:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:32:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash 843118956, now seen corresponding path program 1 times [2020-10-29 08:32:57,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:32:57,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885599201] [2020-10-29 08:32:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:32:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:32:58,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:32:58,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1109 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 08:33:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 930 [2020-10-29 08:33:03,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 175 [2020-10-29 08:33:03,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:33:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:03,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:33:03,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:33:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:03,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:03,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:33:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:03,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:33:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:03,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:33:03,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:03,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:03,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:33:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:03,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:33:03,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:03,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:33:03,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:03,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:03,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:03,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:33:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:03,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:03,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:03,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:03,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:04,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:33:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:04,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:04,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:04,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:33:04,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:04,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:33:04,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:04,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:04,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:04,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:04,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:33:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:04,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:04,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:33:04,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:33:04,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:04,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-29 08:33:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:04,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:04,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:33:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 08:33:04,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 967 backedges. 460 proven. 51 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2020-10-29 08:33:05,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885599201] [2020-10-29 08:33:05,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:33:05,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:33:05,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105728717] [2020-10-29 08:33:05,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:33:05,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:33:05,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:33:05,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:33:05,102 INFO L87 Difference]: Start difference. First operand 36986 states and 41808 transitions. Second operand 8 states. [2020-10-29 08:33:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:33:33,046 INFO L93 Difference]: Finished difference Result 92764 states and 108476 transitions. [2020-10-29 08:33:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:33:33,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1085 [2020-10-29 08:33:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:33:33,217 INFO L225 Difference]: With dead ends: 92764 [2020-10-29 08:33:33,217 INFO L226 Difference]: Without dead ends: 56355 [2020-10-29 08:33:33,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:33:33,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2020-10-29 08:33:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 54869. [2020-10-29 08:33:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54869 states. [2020-10-29 08:33:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54869 states to 54869 states and 63894 transitions. [2020-10-29 08:33:34,488 INFO L78 Accepts]: Start accepts. Automaton has 54869 states and 63894 transitions. Word has length 1085 [2020-10-29 08:33:34,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:33:34,490 INFO L481 AbstractCegarLoop]: Abstraction has 54869 states and 63894 transitions. [2020-10-29 08:33:34,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:33:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 54869 states and 63894 transitions. [2020-10-29 08:33:34,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1132 [2020-10-29 08:33:34,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:33:34,510 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:33:34,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:33:34,511 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:33:34,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:33:34,511 INFO L82 PathProgramCache]: Analyzing trace with hash -2015049198, now seen corresponding path program 1 times [2020-10-29 08:33:34,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:33:34,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155449763] [2020-10-29 08:33:34,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:33:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:36,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:36,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1155 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1523 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-29 08:33:36,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 08:33:36,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:36,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:33:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:36,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:36,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:36,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:36,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:36,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:33:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:36,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:36,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:36,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:33:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:36,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:36,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:36,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:33:36,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:36,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:33:36,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:36,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:36,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:36,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:33:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:36,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:36,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:36,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:36,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:37,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:33:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:37,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:37,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:37,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:37,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:33:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:37,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:33:37,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:37,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:33:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:37,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:33:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:33:37,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 08:33:37,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:37,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:33:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:33:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:33:37,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:33:37,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:33:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:33:38,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1080 backedges. 488 proven. 2 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2020-10-29 08:33:38,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155449763] [2020-10-29 08:33:38,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:33:38,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:33:38,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373515570] [2020-10-29 08:33:38,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:33:38,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:33:38,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:33:38,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:33:38,239 INFO L87 Difference]: Start difference. First operand 54869 states and 63894 transitions. Second operand 7 states.