/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_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:41:38,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:41:38,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:41:38,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:41:38,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:41:38,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:41:38,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:41:38,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:41:38,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:41:38,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:41:38,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:41:38,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:41:38,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:41:38,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:41:38,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:41:38,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:41:38,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:41:38,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:41:38,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:41:39,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:41:39,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:41:39,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:41:39,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:41:39,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:41:39,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:41:39,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:41:39,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:41:39,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:41:39,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:41:39,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:41:39,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:41:39,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:41:39,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:41:39,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:41:39,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:41:39,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:41:39,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:41:39,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:41:39,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:41:39,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:41:39,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:41:39,053 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 08:41:39,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:41:39,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:41:39,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:41:39,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:41:39,115 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:41:39,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:41:39,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:41:39,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:41:39,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:41:39,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:41:39,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:41:39,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:41:39,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:41:39,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:41:39,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:41:39,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:41:39,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:41:39,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:41:39,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:41:39,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:41:39,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:41:39,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:41:39,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:41:39,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:41:39,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:41:39,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:41:39,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:41:39,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:41:39,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:41:39,123 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:41:39,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:41:39,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:41:39,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:41:39,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:41:39,607 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:41:39,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label59.c [2020-10-29 08:41:39,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04af6e7e0/a3479c2946d14604955f8f80e3587db4/FLAG22518b30f [2020-10-29 08:41:40,630 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:41:40,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label59.c [2020-10-29 08:41:40,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04af6e7e0/a3479c2946d14604955f8f80e3587db4/FLAG22518b30f [2020-10-29 08:41:40,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/04af6e7e0/a3479c2946d14604955f8f80e3587db4 [2020-10-29 08:41:40,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:41:40,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:41:40,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:41:40,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:41:40,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:41:40,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:41:40" (1/1) ... [2020-10-29 08:41:40,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6153b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:40, skipping insertion in model container [2020-10-29 08:41:40,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:41:40" (1/1) ... [2020-10-29 08:41:40,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:41:40,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:41:42,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:41:42,171 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:41:42,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:41:42,694 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:41:42,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42 WrapperNode [2020-10-29 08:41:42,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:41:42,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:41:42,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:41:42,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:41:42,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:42,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:42,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:42,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:43,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:43,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:43,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (1/1) ... [2020-10-29 08:41:43,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:41:43,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:41:43,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:41:43,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:41:43,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (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 08:41:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:41:43,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:41:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:41:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:41:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:41:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 08:41:43,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:41:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:41:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:41:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:41:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:41:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:41:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:41:47,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:41:47,725 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:41:47,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:41:47 BoogieIcfgContainer [2020-10-29 08:41:47,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:41:47,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:41:47,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:41:47,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:41:47,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:41:40" (1/3) ... [2020-10-29 08:41:47,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149f848a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:41:47, skipping insertion in model container [2020-10-29 08:41:47,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:41:42" (2/3) ... [2020-10-29 08:41:47,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149f848a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:41:47, skipping insertion in model container [2020-10-29 08:41:47,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:41:47" (3/3) ... [2020-10-29 08:41:47,739 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem18_label59.c [2020-10-29 08:41:47,753 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:41:47,759 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:41:47,775 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:41:47,810 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:41:47,811 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:41:47,811 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:41:47,811 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:41:47,811 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:41:47,811 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:41:47,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:41:47,812 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:41:47,852 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states. [2020-10-29 08:41:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 08:41:47,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:47,862 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] [2020-10-29 08:41:47,862 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash 2060439608, now seen corresponding path program 1 times [2020-10-29 08:41:47,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:47,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389620754] [2020-10-29 08:41:47,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:48,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:48,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:48,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 08:41:48,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-10-29 08:41:48,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:48,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:41:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:41:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 08:41:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:41:48,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:48,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:48,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:48,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:48,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:41:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:48,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:41:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:41:48,962 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 08:41:48,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389620754] [2020-10-29 08:41:48,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:41:48,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:41:48,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133321269] [2020-10-29 08:41:48,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:41:48,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:41:48,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:41:48,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:41:48,996 INFO L87 Difference]: Start difference. First operand 778 states. Second operand 5 states. [2020-10-29 08:41:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:41:58,665 INFO L93 Difference]: Finished difference Result 2275 states and 4355 transitions. [2020-10-29 08:41:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:41:58,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-29 08:41:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:41:58,704 INFO L225 Difference]: With dead ends: 2275 [2020-10-29 08:41:58,704 INFO L226 Difference]: Without dead ends: 1433 [2020-10-29 08:41:58,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:41:58,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-10-29 08:41:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 1426. [2020-10-29 08:41:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1426 states. [2020-10-29 08:41:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2644 transitions. [2020-10-29 08:41:58,905 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2644 transitions. Word has length 44 [2020-10-29 08:41:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:41:58,908 INFO L481 AbstractCegarLoop]: Abstraction has 1426 states and 2644 transitions. [2020-10-29 08:41:58,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:41:58,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2644 transitions. [2020-10-29 08:41:58,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 08:41:58,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:41:58,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:58,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:41:58,918 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:41:58,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:41:58,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1194515946, now seen corresponding path program 1 times [2020-10-29 08:41:58,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:41:58,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532878897] [2020-10-29 08:41:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:41:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:59,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:59,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-29 08:41:59,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:41:59,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-10-29 08:41:59,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:59,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:41:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:41:59,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 08:41:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:41:59,951 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:41:59,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:41:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:41:59,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:41:59,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:41:59,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:41:59,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:41:59,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:41:59,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:41:59,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:41:59,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:41:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:41:59,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:41:59,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 08:42:00,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:42:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:00,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:00,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:42:00,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:42:00,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:00,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:42:00,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 08:42:00,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:42:00,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532878897] [2020-10-29 08:42:00,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:42:00,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:42:00,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549716869] [2020-10-29 08:42:00,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:42:00,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:42:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:42:00,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:42:00,285 INFO L87 Difference]: Start difference. First operand 1426 states and 2644 transitions. Second operand 8 states. [2020-10-29 08:42:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:16,202 INFO L93 Difference]: Finished difference Result 5774 states and 10807 transitions. [2020-10-29 08:42:16,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:42:16,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2020-10-29 08:42:16,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:16,236 INFO L225 Difference]: With dead ends: 5774 [2020-10-29 08:42:16,236 INFO L226 Difference]: Without dead ends: 4354 [2020-10-29 08:42:16,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:42:16,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2020-10-29 08:42:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 4332. [2020-10-29 08:42:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4332 states. [2020-10-29 08:42:16,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4332 states to 4332 states and 6683 transitions. [2020-10-29 08:42:16,425 INFO L78 Accepts]: Start accepts. Automaton has 4332 states and 6683 transitions. Word has length 113 [2020-10-29 08:42:16,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:42:16,426 INFO L481 AbstractCegarLoop]: Abstraction has 4332 states and 6683 transitions. [2020-10-29 08:42:16,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:42:16,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4332 states and 6683 transitions. [2020-10-29 08:42:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 08:42:16,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:42:16,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:16,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:42:16,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:42:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:42:16,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1159339876, now seen corresponding path program 1 times [2020-10-29 08:42:16,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:42:16,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112006194] [2020-10-29 08:42:16,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:42:16,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:16,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:17,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 08:42:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:42:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-10-29 08:42:17,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:17,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:42:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:42:17,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 08:42:17,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:42:17,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:42:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:17,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:17,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:17,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:42:17,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:17,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:42:17,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:17,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:42:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:17,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:42:17,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:17,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:42:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:17,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:17,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:42:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 08:42:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:17,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:42:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:42:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:42:17,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112006194] [2020-10-29 08:42:17,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:42:17,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 08:42:17,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278533560] [2020-10-29 08:42:17,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:42:17,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:42:17,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:42:17,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:42:17,615 INFO L87 Difference]: Start difference. First operand 4332 states and 6683 transitions. Second operand 7 states. [2020-10-29 08:42:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:29,825 INFO L93 Difference]: Finished difference Result 13142 states and 20663 transitions. [2020-10-29 08:42:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:42:29,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-29 08:42:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:29,880 INFO L225 Difference]: With dead ends: 13142 [2020-10-29 08:42:29,881 INFO L226 Difference]: Without dead ends: 8816 [2020-10-29 08:42:29,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:42:29,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8816 states. [2020-10-29 08:42:30,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8816 to 8731. [2020-10-29 08:42:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8731 states. [2020-10-29 08:42:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8731 states to 8731 states and 12159 transitions. [2020-10-29 08:42:30,205 INFO L78 Accepts]: Start accepts. Automaton has 8731 states and 12159 transitions. Word has length 116 [2020-10-29 08:42:30,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:42:30,210 INFO L481 AbstractCegarLoop]: Abstraction has 8731 states and 12159 transitions. [2020-10-29 08:42:30,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:42:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand 8731 states and 12159 transitions. [2020-10-29 08:42:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-29 08:42:30,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:42:30,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:30,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:42:30,224 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:42:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:42:30,224 INFO L82 PathProgramCache]: Analyzing trace with hash -411155874, now seen corresponding path program 1 times [2020-10-29 08:42:30,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:42:30,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133469083] [2020-10-29 08:42:30,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:42:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:30,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:31,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:31,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 08:42:31,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:42:31,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1367 [2020-10-29 08:42:31,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:31,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:31,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:42:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:42:31,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 08:42:31,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:31,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:42:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:31,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:31,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:31,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:42:31,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:31,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:42:31,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:31,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:42:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:31,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:32,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:32,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-29 08:42:32,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:32,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-29 08:42:32,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:32,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:32,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:42:32,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 08:42:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:42:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:42:32,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133469083] [2020-10-29 08:42:32,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:42:32,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:42:32,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977598423] [2020-10-29 08:42:32,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:42:32,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:42:32,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:42:32,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:42:32,591 INFO L87 Difference]: Start difference. First operand 8731 states and 12159 transitions. Second operand 8 states. [2020-10-29 08:42:47,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:47,278 INFO L93 Difference]: Finished difference Result 21935 states and 31000 transitions. [2020-10-29 08:42:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:42:47,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-10-29 08:42:47,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:47,350 INFO L225 Difference]: With dead ends: 21935 [2020-10-29 08:42:47,350 INFO L226 Difference]: Without dead ends: 13210 [2020-10-29 08:42:47,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:42:47,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13210 states. [2020-10-29 08:42:47,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13210 to 12474. [2020-10-29 08:42:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12474 states. [2020-10-29 08:42:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12474 states to 12474 states and 16703 transitions. [2020-10-29 08:42:47,809 INFO L78 Accepts]: Start accepts. Automaton has 12474 states and 16703 transitions. Word has length 141 [2020-10-29 08:42:47,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:42:47,810 INFO L481 AbstractCegarLoop]: Abstraction has 12474 states and 16703 transitions. [2020-10-29 08:42:47,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:42:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 12474 states and 16703 transitions. [2020-10-29 08:42:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-29 08:42:47,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:42:47,814 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:47,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:42:47,814 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:42:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:42:47,815 INFO L82 PathProgramCache]: Analyzing trace with hash 778955896, now seen corresponding path program 1 times [2020-10-29 08:42:47,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:42:47,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035567255] [2020-10-29 08:42:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:42:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:47,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:48,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:48,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 08:42:48,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:48,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-29 08:42:48,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:48,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:42:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:48,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:42:48,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:42:48,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:48,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:42:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:48,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:42:48,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:48,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:42:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:42:48,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:42:48,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:42:48,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 08:42:48,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:42:48,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 08:42:48,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:42:48,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:42:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:42:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:42:48,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 08:42:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:42:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:42:48,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035567255] [2020-10-29 08:42:48,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:42:48,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:42:48,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418926157] [2020-10-29 08:42:48,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:42:48,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:42:48,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:42:48,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:42:48,881 INFO L87 Difference]: Start difference. First operand 12474 states and 16703 transitions. Second operand 5 states. [2020-10-29 08:42:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:42:59,714 INFO L93 Difference]: Finished difference Result 30676 states and 42596 transitions. [2020-10-29 08:42:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:42:59,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-10-29 08:42:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:42:59,783 INFO L225 Difference]: With dead ends: 30676 [2020-10-29 08:42:59,783 INFO L226 Difference]: Without dead ends: 15957 [2020-10-29 08:42:59,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:42:59,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15957 states. [2020-10-29 08:43:00,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15957 to 15939. [2020-10-29 08:43:00,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15939 states. [2020-10-29 08:43:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15939 states to 15939 states and 18546 transitions. [2020-10-29 08:43:00,152 INFO L78 Accepts]: Start accepts. Automaton has 15939 states and 18546 transitions. Word has length 230 [2020-10-29 08:43:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:43:00,153 INFO L481 AbstractCegarLoop]: Abstraction has 15939 states and 18546 transitions. [2020-10-29 08:43:00,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:43:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15939 states and 18546 transitions. [2020-10-29 08:43:00,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2020-10-29 08:43:00,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:43:00,165 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:00,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:43:00,166 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:43:00,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:43:00,166 INFO L82 PathProgramCache]: Analyzing trace with hash 11373964, now seen corresponding path program 1 times [2020-10-29 08:43:00,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:43:00,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1466706649] [2020-10-29 08:43:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:43:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:00,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:00,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:03,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:03,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:05,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:05,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 531 [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:43:05,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:43:05,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-29 08:43:05,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:05,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:43:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:05,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:05,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:05,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:43:05,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:43:05,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:05,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:43:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:43:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:43:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:06,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:06,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:43:06,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:06,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-29 08:43:06,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:06,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:43:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:43:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-29 08:43:06,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:06,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:43:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:06,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:06,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:06,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:43:06,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:06,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 08:43:06,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:06,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 08:43:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:43:06,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 08:43:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:43:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-29 08:43:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:06,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:06,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:06,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:43:06,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:06,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:43:06,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:06,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:06,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 08:43:06,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:06,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:06,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-10-29 08:43:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:06,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:07,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:07,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:43:07,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:07,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:43:07,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:07,406 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 108 proven. 152 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-29 08:43:07,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1466706649] [2020-10-29 08:43:07,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:43:07,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:43:07,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854455312] [2020-10-29 08:43:07,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:43:07,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:43:07,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:43:07,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:43:07,410 INFO L87 Difference]: Start difference. First operand 15939 states and 18546 transitions. Second operand 7 states. [2020-10-29 08:43:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:43:16,800 INFO L93 Difference]: Finished difference Result 39291 states and 46624 transitions. [2020-10-29 08:43:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:43:16,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 513 [2020-10-29 08:43:16,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:43:16,883 INFO L225 Difference]: With dead ends: 39291 [2020-10-29 08:43:16,884 INFO L226 Difference]: Without dead ends: 23358 [2020-10-29 08:43:16,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:43:16,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23358 states. [2020-10-29 08:43:17,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23358 to 23297. [2020-10-29 08:43:17,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23297 states. [2020-10-29 08:43:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23297 states to 23297 states and 27067 transitions. [2020-10-29 08:43:17,480 INFO L78 Accepts]: Start accepts. Automaton has 23297 states and 27067 transitions. Word has length 513 [2020-10-29 08:43:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:43:17,481 INFO L481 AbstractCegarLoop]: Abstraction has 23297 states and 27067 transitions. [2020-10-29 08:43:17,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:43:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 23297 states and 27067 transitions. [2020-10-29 08:43:17,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2020-10-29 08:43:17,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:43:17,526 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:43:17,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:43:17,526 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:43:17,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:43:17,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1956082574, now seen corresponding path program 1 times [2020-10-29 08:43:17,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:43:17,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913843142] [2020-10-29 08:43:17,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:43:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:18,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:19,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:19,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:23,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:23,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1064 [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:43:23,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 944 [2020-10-29 08:43:23,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 08:43:23,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:43:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:23,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:23,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:23,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:43:23,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:43:23,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:23,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:23,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:23,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:43:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:23,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:23,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:23,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:43:23,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 08:43:23,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:23,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:23,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:43:23,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:43:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:23,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:23,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:43:23,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:23,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:43:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:23,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:23,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:23,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:43:23,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:23,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:43:23,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:23,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:23,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:23,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:43:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:24,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:43:24,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:43:24,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:24,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:24,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:43:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:24,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:24,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:24,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:24,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:43:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:24,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:24,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 08:43:24,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:43:24,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:24,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:43:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:24,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 08:43:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:43:24,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-29 08:43:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:24,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:24,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:24,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:43:24,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:24,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 08:43:24,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:43:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:43:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:43:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2020-10-29 08:43:25,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913843142] [2020-10-29 08:43:25,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:43:25,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:43:25,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535888939] [2020-10-29 08:43:25,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:43:25,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:43:25,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:43:25,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:43:25,386 INFO L87 Difference]: Start difference. First operand 23297 states and 27067 transitions. Second operand 7 states. [2020-10-29 08:43:36,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:43:36,847 INFO L93 Difference]: Finished difference Result 53933 states and 64027 transitions. [2020-10-29 08:43:36,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:43:36,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1040 [2020-10-29 08:43:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:43:36,945 INFO L225 Difference]: With dead ends: 53933 [2020-10-29 08:43:36,945 INFO L226 Difference]: Without dead ends: 30642 [2020-10-29 08:43:36,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:43:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30642 states. [2020-10-29 08:43:37,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30642 to 30584. [2020-10-29 08:43:37,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30584 states. [2020-10-29 08:43:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30584 states to 30584 states and 35793 transitions. [2020-10-29 08:43:37,574 INFO L78 Accepts]: Start accepts. Automaton has 30584 states and 35793 transitions. Word has length 1040 [2020-10-29 08:43:37,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:43:37,577 INFO L481 AbstractCegarLoop]: Abstraction has 30584 states and 35793 transitions. [2020-10-29 08:43:37,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:43:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 30584 states and 35793 transitions. [2020-10-29 08:43:37,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1062 [2020-10-29 08:43:37,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:43:37,630 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:43:37,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:43:37,631 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:43:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:43:37,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1072867892, now seen corresponding path program 1 times [2020-10-29 08:43:37,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:43:37,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020318007] [2020-10-29 08:43:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:43:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:38,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:38,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:42,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:42,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:42,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1085 [2020-10-29 08:43:42,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:43:42,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-29 08:43:42,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:42,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:43:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:43:42,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 08:43:42,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:43:43,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:43:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:43,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:43,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:43,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:43:43,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:43:43,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:43,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:43,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:43,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:43,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:43:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:43,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:43,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:43:43,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:43:43,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:43,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:43,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:43,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:43:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:43,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:43,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:43,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:43:43,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:43:43,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:43,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:43,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:43,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:43,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:43:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:43,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:43,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:43,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:43:43,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:43,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:43:43,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:43,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:43,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:43,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:43,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:43:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:44,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:44,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:44,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:43:44,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:44,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-29 08:43:44,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:44,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:43:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:44,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:43:44,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:44,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:43:44,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:44,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:44,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:43:44,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:43:44,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:44,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:43:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:44,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:44,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:44,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:43:44,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 08:43:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2020-10-29 08:43:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:44,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:43:44,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:43:44,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:43:44,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:43:44,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:43:44,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:43:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:43:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:43:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:43:44,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:43:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 376 proven. 71 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-29 08:43:45,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2020318007] [2020-10-29 08:43:45,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:43:45,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:43:45,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864084678] [2020-10-29 08:43:45,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:43:45,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:43:45,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:43:45,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:43:45,130 INFO L87 Difference]: Start difference. First operand 30584 states and 35793 transitions. Second operand 7 states. [2020-10-29 08:43:54,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:43:54,761 INFO L93 Difference]: Finished difference Result 80294 states and 96083 transitions. [2020-10-29 08:43:54,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:43:54,763 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1061 [2020-10-29 08:43:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:43:54,939 INFO L225 Difference]: With dead ends: 80294 [2020-10-29 08:43:54,940 INFO L226 Difference]: Without dead ends: 49716 [2020-10-29 08:43:54,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:43:55,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49716 states. [2020-10-29 08:43:55,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49716 to 49675. [2020-10-29 08:43:55,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49675 states. [2020-10-29 08:43:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49675 states to 49675 states and 58100 transitions. [2020-10-29 08:43:55,969 INFO L78 Accepts]: Start accepts. Automaton has 49675 states and 58100 transitions. Word has length 1061 [2020-10-29 08:43:55,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:43:55,973 INFO L481 AbstractCegarLoop]: Abstraction has 49675 states and 58100 transitions. [2020-10-29 08:43:55,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:43:55,973 INFO L276 IsEmpty]: Start isEmpty. Operand 49675 states and 58100 transitions. [2020-10-29 08:43:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1093 [2020-10-29 08:43:55,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:43:55,993 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:43:55,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:43:55,994 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:43:55,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:43:55,995 INFO L82 PathProgramCache]: Analyzing trace with hash 253865382, now seen corresponding path program 1 times [2020-10-29 08:43:55,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:43:55,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8911279] [2020-10-29 08:43:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:43:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:43:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:43:57,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:00,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:01,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:01,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1116 [2020-10-29 08:44:01,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:44:01,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5119 [2020-10-29 08:44:01,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:01,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:01,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:01,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-29 08:44:01,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 08:44:01,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:02,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:44:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:02,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:02,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:02,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:44:02,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:02,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:02,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:02,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:44:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:02,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:02,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:02,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:02,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:02,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:02,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:02,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:02,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:02,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:02,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:44:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:02,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:02,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:44:02,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:44:02,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:02,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:02,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:44:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:02,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:02,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:02,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:44:02,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-29 08:44:02,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:03,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:03,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:44:03,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:03,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 08:44:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:44:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:03,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:03,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:03,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 08:44:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2020-10-29 08:44:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:03,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:03,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:03,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:44:03,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 951 backedges. 438 proven. 71 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-29 08:44:04,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8911279] [2020-10-29 08:44:04,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:44:04,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:44:04,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532415057] [2020-10-29 08:44:04,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:44:04,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:44:04,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:44:04,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:44:04,204 INFO L87 Difference]: Start difference. First operand 49675 states and 58100 transitions. Second operand 8 states. [2020-10-29 08:44:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:44:15,003 INFO L93 Difference]: Finished difference Result 111437 states and 131606 transitions. [2020-10-29 08:44:15,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:44:15,005 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1092 [2020-10-29 08:44:15,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:44:15,225 INFO L225 Difference]: With dead ends: 111437 [2020-10-29 08:44:15,226 INFO L226 Difference]: Without dead ends: 61768 [2020-10-29 08:44:15,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:44:15,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61768 states. [2020-10-29 08:44:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61768 to 61759. [2020-10-29 08:44:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61759 states. [2020-10-29 08:44:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61759 states to 61759 states and 72117 transitions. [2020-10-29 08:44:16,821 INFO L78 Accepts]: Start accepts. Automaton has 61759 states and 72117 transitions. Word has length 1092 [2020-10-29 08:44:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:44:16,823 INFO L481 AbstractCegarLoop]: Abstraction has 61759 states and 72117 transitions. [2020-10-29 08:44:16,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:44:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 61759 states and 72117 transitions. [2020-10-29 08:44:16,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1176 [2020-10-29 08:44:16,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:44:16,843 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:44:16,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:44:16,844 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:44:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:44:16,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1186376636, now seen corresponding path program 1 times [2020-10-29 08:44:16,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:44:16,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209061724] [2020-10-29 08:44:16,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:44:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:17,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:20,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:21,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:22,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1201 [2020-10-29 08:44:22,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:44:22,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 08:44:22,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:22,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 976 [2020-10-29 08:44:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 08:44:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:22,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:44:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:22,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:22,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:22,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:44:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:22,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:44:23,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:44:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:44:23,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:44:23,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:23,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:23,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:44:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:44:23,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:44:23,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:23,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:44:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 08:44:23,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 964 [2020-10-29 08:44:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:23,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:23,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:23,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 08:44:23,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:23,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:44:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:24,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2020-10-29 08:44:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:24,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:24,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:44:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1325 backedges. 511 proven. 68 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2020-10-29 08:44:24,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209061724] [2020-10-29 08:44:24,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:44:24,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:44:24,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472021449] [2020-10-29 08:44:24,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:44:24,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:44:24,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:44:24,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:44:24,898 INFO L87 Difference]: Start difference. First operand 61759 states and 72117 transitions. Second operand 8 states. [2020-10-29 08:44:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:44:35,489 INFO L93 Difference]: Finished difference Result 129888 states and 151231 transitions. [2020-10-29 08:44:35,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:44:35,490 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1175 [2020-10-29 08:44:35,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:44:35,724 INFO L225 Difference]: With dead ends: 129888 [2020-10-29 08:44:35,725 INFO L226 Difference]: Without dead ends: 68135 [2020-10-29 08:44:35,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:44:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68135 states. [2020-10-29 08:44:37,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68135 to 68109. [2020-10-29 08:44:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68109 states. [2020-10-29 08:44:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68109 states to 68109 states and 78800 transitions. [2020-10-29 08:44:37,471 INFO L78 Accepts]: Start accepts. Automaton has 68109 states and 78800 transitions. Word has length 1175 [2020-10-29 08:44:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:44:37,472 INFO L481 AbstractCegarLoop]: Abstraction has 68109 states and 78800 transitions. [2020-10-29 08:44:37,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:44:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 68109 states and 78800 transitions. [2020-10-29 08:44:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1205 [2020-10-29 08:44:37,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:44:37,495 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2020-10-29 08:44:37,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:44:37,496 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:44:37,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:44:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash -2107101042, now seen corresponding path program 1 times [2020-10-29 08:44:37,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:44:37,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921956808] [2020-10-29 08:44:37,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:44:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:38,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:38,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1230 [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3740 [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:41,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:44:41,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 08:44:41,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:41,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:44:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:41,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:41,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:41,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:41,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:41,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:44:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:41,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:44:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:44:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:44:42,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:44:42,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:44:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:44:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:44:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:44:42,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:44:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:44:42,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:44:42,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-29 08:44:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:42,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:42,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:44:42,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:44:42,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:44:42,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:44:42,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:44:42,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:44:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:44:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:44:42,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:44:42,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:44:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 471 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-29 08:44:43,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921956808] [2020-10-29 08:44:43,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:44:43,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:44:43,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70127331] [2020-10-29 08:44:43,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:44:43,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:44:43,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:44:43,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:44:43,648 INFO L87 Difference]: Start difference. First operand 68109 states and 78800 transitions. Second operand 7 states. [2020-10-29 08:44:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:44:56,227 INFO L93 Difference]: Finished difference Result 136241 states and 157655 transitions. [2020-10-29 08:44:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:44:56,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1204 [2020-10-29 08:44:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:44:56,434 INFO L225 Difference]: With dead ends: 136241 [2020-10-29 08:44:56,435 INFO L226 Difference]: Without dead ends: 68138 [2020-10-29 08:44:56,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:44:56,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68138 states. [2020-10-29 08:44:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68138 to 65311. [2020-10-29 08:44:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65311 states. [2020-10-29 08:44:58,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65311 states to 65311 states and 74818 transitions. [2020-10-29 08:44:58,173 INFO L78 Accepts]: Start accepts. Automaton has 65311 states and 74818 transitions. Word has length 1204 [2020-10-29 08:44:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:44:58,174 INFO L481 AbstractCegarLoop]: Abstraction has 65311 states and 74818 transitions. [2020-10-29 08:44:58,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:44:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 65311 states and 74818 transitions. [2020-10-29 08:44:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1313 [2020-10-29 08:44:58,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:44:58,591 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:44:58,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:44:58,592 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:44:58,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:44:58,592 INFO L82 PathProgramCache]: Analyzing trace with hash 985088810, now seen corresponding path program 1 times [2020-10-29 08:44:58,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:44:58,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510670952] [2020-10-29 08:44:58,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:44:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:44:58,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:44:59,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:01,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:03,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:03,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1340 [2020-10-29 08:45:03,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:45:03,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:45:03,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:45:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:45:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:45:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-29 08:45:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-29 08:45:04,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-29 08:45:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-29 08:45:04,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 08:45:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:45:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:04,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:04,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 08:45:04,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:04,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:45:04,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:04,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:04,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:04,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:04,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:04,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-29 08:45:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:04,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:05,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:05,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 08:45:05,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-29 08:45:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:05,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:05,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 08:45:05,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 08:45:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:05,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-29 08:45:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:05,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:45:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:45:05,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 08:45:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:05,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1204 [2020-10-29 08:45:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:45:05,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:45:05,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:45:05,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:45:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1934 backedges. 667 proven. 71 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2020-10-29 08:45:06,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510670952] [2020-10-29 08:45:06,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:45:06,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:45:06,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848691218] [2020-10-29 08:45:06,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:45:06,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:45:06,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:45:06,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:45:06,379 INFO L87 Difference]: Start difference. First operand 65311 states and 74818 transitions. Second operand 7 states.