/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=SHALLOWEST --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/Problem01_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:31:21,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:31:21,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:31:21,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:31:21,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:31:21,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:31:21,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:31:21,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:31:21,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:31:21,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:31:21,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:31:21,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:31:21,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:31:21,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:31:21,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:31:21,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:31:21,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:31:21,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:31:21,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:31:21,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:31:21,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:31:21,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:31:21,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:31:21,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:31:21,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:31:21,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:31:21,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:31:21,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:31:21,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:31:21,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:31:21,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:31:21,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:31:21,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:31:21,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:31:21,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:31:21,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:31:21,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:31:21,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:31:21,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:31:21,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:31:21,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:31:21,185 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 [2020-10-26 20:31:21,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:31:21,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:31:21,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:31:21,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:31:21,244 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:31:21,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:31:21,245 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:31:21,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:31:21,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:31:21,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:31:21,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:31:21,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:31:21,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:31:21,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:31:21,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:31:21,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:31:21,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:31:21,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:31:21,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:31:21,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:31:21,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:31:21,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:31:21,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:31:21,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:31:21,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:31:21,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:31:21,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:31:21,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:31:21,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:31:21,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:31:21,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:31:21,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:31:21,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:31:21,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:31:21,724 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:31:21,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2020-10-26 20:31:21,808 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e217a8d2b/6565c566852b4386afc688855d200132/FLAGe839ac079 [2020-10-26 20:31:22,575 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:31:22,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label09.c [2020-10-26 20:31:22,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e217a8d2b/6565c566852b4386afc688855d200132/FLAGe839ac079 [2020-10-26 20:31:22,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e217a8d2b/6565c566852b4386afc688855d200132 [2020-10-26 20:31:22,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:31:22,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:31:22,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:22,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:31:22,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:31:22,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:22" (1/1) ... [2020-10-26 20:31:22,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ebef41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:22, skipping insertion in model container [2020-10-26 20:31:22,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:31:22" (1/1) ... [2020-10-26 20:31:22,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:31:22,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:31:23,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:23,330 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:31:23,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:31:23,554 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:31:23,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23 WrapperNode [2020-10-26 20:31:23,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:31:23,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:31:23,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:31:23,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:31:23,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (1/1) ... [2020-10-26 20:31:23,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:31:23,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:31:23,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:31:23,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:31:23,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (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 [2020-10-26 20:31:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:31:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:31:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:31:23,801 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:31:23,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:31:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:31:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:31:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:31:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:31:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:31:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:31:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:31:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:31:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:31:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:31:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:31:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:31:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:31:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:31:25,104 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:31:25,104 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:31:25,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:25 BoogieIcfgContainer [2020-10-26 20:31:25,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:31:25,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:31:25,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:31:25,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:31:25,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:31:22" (1/3) ... [2020-10-26 20:31:25,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a12f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:25, skipping insertion in model container [2020-10-26 20:31:25,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:31:23" (2/3) ... [2020-10-26 20:31:25,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a12f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:31:25, skipping insertion in model container [2020-10-26 20:31:25,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:31:25" (3/3) ... [2020-10-26 20:31:25,116 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label09.c [2020-10-26 20:31:25,129 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:31:25,135 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:31:25,150 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:31:25,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:31:25,180 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:31:25,181 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:31:25,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:31:25,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:31:25,181 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:31:25,181 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:31:25,181 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:31:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:31:25,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-26 20:31:25,221 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:25,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:25,223 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:25,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash 778332747, now seen corresponding path program 1 times [2020-10-26 20:31:25,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:25,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603559218] [2020-10-26 20:31:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:26,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:27,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:27,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 20:31:27,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:27,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2041 [2020-10-26 20:31:27,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:31:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:31:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:31:28,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:28,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:28,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:28,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:28,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:31:28,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:28,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:28,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:31:28,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603559218] [2020-10-26 20:31:28,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:31:28,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:31:28,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197862908] [2020-10-26 20:31:28,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:31:28,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:28,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:31:28,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:31:28,954 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:31:29,157 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:31:29,500 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:31:29,695 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:31:29,914 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-26 20:31:30,332 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-26 20:31:30,828 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-26 20:31:31,501 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-26 20:31:32,255 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2020-10-26 20:31:32,777 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-26 20:31:34,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:34,146 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:31:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:31:34,149 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2020-10-26 20:31:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:34,162 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:31:34,163 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:31:34,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:31:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:31:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:31:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:31:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:31:34,259 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 125 [2020-10-26 20:31:34,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:34,260 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:31:34,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:31:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:31:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-26 20:31:34,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:34,265 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:31:34,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:31:34,266 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:34,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:34,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1100448749, now seen corresponding path program 1 times [2020-10-26 20:31:34,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:34,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264915775] [2020-10-26 20:31:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:34,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:34,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:35,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:36,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:36,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-26 20:31:36,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:31:36,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1852 [2020-10-26 20:31:36,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:36,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:36,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:36,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 20:31:36,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:31:36,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:36,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:36,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:36,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:36,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:36,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:36,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:36,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:36,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:36,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:31:36,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:36,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:31:36,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:36,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:31:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:31:36,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264915775] [2020-10-26 20:31:36,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:36,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:31:36,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334908173] [2020-10-26 20:31:36,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:36,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:36,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:36,536 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 7 states. [2020-10-26 20:31:38,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:38,202 INFO L93 Difference]: Finished difference Result 491 states and 703 transitions. [2020-10-26 20:31:38,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:31:38,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-10-26 20:31:38,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:38,215 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:31:38,216 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:31:38,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:31:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:31:38,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:31:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:31:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-26 20:31:38,292 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 133 [2020-10-26 20:31:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:38,296 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-26 20:31:38,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:38,297 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-26 20:31:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-26 20:31:38,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:38,305 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:38,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:31:38,306 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:38,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:38,308 INFO L82 PathProgramCache]: Analyzing trace with hash -607030418, now seen corresponding path program 1 times [2020-10-26 20:31:38,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:38,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073631959] [2020-10-26 20:31:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:38,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:38,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:38,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:39,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:39,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 20:31:39,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:31:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-26 20:31:39,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-26 20:31:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:39,807 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:39,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:39,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:39,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:31:39,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:39,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:39,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:39,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:39,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:39,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:31:39,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:39,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:31:39,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:39,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:39,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:31:39,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:31:39,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073631959] [2020-10-26 20:31:39,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:39,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:31:39,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366208375] [2020-10-26 20:31:39,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:31:39,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:39,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:31:39,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:31:39,979 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-26 20:31:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:41,533 INFO L93 Difference]: Finished difference Result 908 states and 1279 transitions. [2020-10-26 20:31:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:31:41,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-10-26 20:31:41,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:41,541 INFO L225 Difference]: With dead ends: 908 [2020-10-26 20:31:41,541 INFO L226 Difference]: Without dead ends: 629 [2020-10-26 20:31:41,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-26 20:31:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 623. [2020-10-26 20:31:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2020-10-26 20:31:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 836 transitions. [2020-10-26 20:31:41,606 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 836 transitions. Word has length 136 [2020-10-26 20:31:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:41,611 INFO L481 AbstractCegarLoop]: Abstraction has 623 states and 836 transitions. [2020-10-26 20:31:41,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:31:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 836 transitions. [2020-10-26 20:31:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-26 20:31:41,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:41,616 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:41,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:31:41,617 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:41,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:41,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1195599631, now seen corresponding path program 1 times [2020-10-26 20:31:41,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:41,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678330815] [2020-10-26 20:31:41,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:41,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:43,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:46,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:46,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-26 20:31:46,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:31:46,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:31:46,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:46,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:46,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:46,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:31:46,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:46,902 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:46,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:46,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:46,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:46,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:46,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:31:46,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:46,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:46,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:46,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:46,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:47,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:47,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:31:47,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:31:47,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:47,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:31:47,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-26 20:31:47,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:31:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:47,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:47,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:47,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:47,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:47,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:31:47,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:47,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:47,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:47,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:31:47,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:47,211 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:31:47,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678330815] [2020-10-26 20:31:47,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:47,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:31:47,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450078894] [2020-10-26 20:31:47,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:47,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:47,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:47,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:47,214 INFO L87 Difference]: Start difference. First operand 623 states and 836 transitions. Second operand 7 states. [2020-10-26 20:31:49,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:49,257 INFO L93 Difference]: Finished difference Result 1762 states and 2439 transitions. [2020-10-26 20:31:49,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:31:49,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 149 [2020-10-26 20:31:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:49,266 INFO L225 Difference]: With dead ends: 1762 [2020-10-26 20:31:49,267 INFO L226 Difference]: Without dead ends: 1205 [2020-10-26 20:31:49,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:31:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2020-10-26 20:31:49,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1197. [2020-10-26 20:31:49,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2020-10-26 20:31:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1581 transitions. [2020-10-26 20:31:49,341 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1581 transitions. Word has length 149 [2020-10-26 20:31:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:49,342 INFO L481 AbstractCegarLoop]: Abstraction has 1197 states and 1581 transitions. [2020-10-26 20:31:49,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1581 transitions. [2020-10-26 20:31:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-26 20:31:49,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:49,350 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:31:49,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:31:49,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:49,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:49,351 INFO L82 PathProgramCache]: Analyzing trace with hash -580290643, now seen corresponding path program 1 times [2020-10-26 20:31:49,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:49,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141312725] [2020-10-26 20:31:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:49,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:49,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:50,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:54,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:54,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-26 20:31:54,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:31:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-26 20:31:54,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:31:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:31:54,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:54,568 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:54,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:54,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:54,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:54,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:54,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:31:54,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:54,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:54,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:54,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:31:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:54,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:31:54,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:54,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:54,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:31:54,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:31:54,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:31:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:54,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:54,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:54,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:31:54,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:54,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:31:54,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:54,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:31:54,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:54,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:31:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:54,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:54,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:54,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:31:54,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:31:54,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:54,753 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:31:54,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141312725] [2020-10-26 20:31:54,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:54,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:31:54,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617948989] [2020-10-26 20:31:54,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:31:54,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:54,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:31:54,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:31:54,756 INFO L87 Difference]: Start difference. First operand 1197 states and 1581 transitions. Second operand 7 states. [2020-10-26 20:31:57,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:31:57,189 INFO L93 Difference]: Finished difference Result 3859 states and 5265 transitions. [2020-10-26 20:31:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:31:57,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-10-26 20:31:57,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:31:57,203 INFO L225 Difference]: With dead ends: 3859 [2020-10-26 20:31:57,203 INFO L226 Difference]: Without dead ends: 2728 [2020-10-26 20:31:57,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:31:57,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2020-10-26 20:31:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2172. [2020-10-26 20:31:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2172 states. [2020-10-26 20:31:57,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 2803 transitions. [2020-10-26 20:31:57,298 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 2803 transitions. Word has length 157 [2020-10-26 20:31:57,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:31:57,298 INFO L481 AbstractCegarLoop]: Abstraction has 2172 states and 2803 transitions. [2020-10-26 20:31:57,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:31:57,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 2803 transitions. [2020-10-26 20:31:57,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-26 20:31:57,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:31:57,305 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 20:31:57,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:31:57,306 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:31:57,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:31:57,306 INFO L82 PathProgramCache]: Analyzing trace with hash -126902936, now seen corresponding path program 1 times [2020-10-26 20:31:57,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:31:57,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190750766] [2020-10-26 20:31:57,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:31:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:58,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-26 20:31:59,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:31:59,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2060 [2020-10-26 20:31:59,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:31:59,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:31:59,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:31:59,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:59,541 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:31:59,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:31:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:59,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:31:59,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:31:59,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:31:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:31:59,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:31:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:59,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:31:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:59,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:31:59,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:31:59,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:31:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:31:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:59,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:31:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:31:59,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:31:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:31:59,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:31:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:31:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:31:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:31:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:31:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:31:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:31:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:31:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:31:59,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190750766] [2020-10-26 20:31:59,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:31:59,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:31:59,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748452229] [2020-10-26 20:31:59,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:31:59,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:31:59,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:31:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:31:59,787 INFO L87 Difference]: Start difference. First operand 2172 states and 2803 transitions. Second operand 8 states. [2020-10-26 20:31:59,941 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:32:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:01,577 INFO L93 Difference]: Finished difference Result 4477 states and 5927 transitions. [2020-10-26 20:32:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:32:01,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-10-26 20:32:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:01,594 INFO L225 Difference]: With dead ends: 4477 [2020-10-26 20:32:01,594 INFO L226 Difference]: Without dead ends: 2371 [2020-10-26 20:32:01,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:01,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2020-10-26 20:32:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2311. [2020-10-26 20:32:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2311 states. [2020-10-26 20:32:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 2882 transitions. [2020-10-26 20:32:01,686 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 2882 transitions. Word has length 156 [2020-10-26 20:32:01,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:01,687 INFO L481 AbstractCegarLoop]: Abstraction has 2311 states and 2882 transitions. [2020-10-26 20:32:01,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:01,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 2882 transitions. [2020-10-26 20:32:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-26 20:32:01,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:01,693 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:01,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:32:01,694 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:01,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:01,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1765723214, now seen corresponding path program 1 times [2020-10-26 20:32:01,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:01,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958410449] [2020-10-26 20:32:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:01,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:01,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:01,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:04,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:04,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:04,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3146 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:32:04,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:05,016 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:05,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:05,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:05,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:05,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:05,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:05,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:05,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:05,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:05,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:05,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:05,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:05,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:05,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:32:05,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:05,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:05,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:32:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:05,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:05,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:05,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:05,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:05,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:32:05,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:05,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:05,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:05,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:05,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958410449] [2020-10-26 20:32:05,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:05,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:05,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307945917] [2020-10-26 20:32:05,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:05,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:05,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:05,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:05,361 INFO L87 Difference]: Start difference. First operand 2311 states and 2882 transitions. Second operand 8 states. [2020-10-26 20:32:05,516 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:32:07,011 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:32:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:07,533 INFO L93 Difference]: Finished difference Result 4874 states and 6103 transitions. [2020-10-26 20:32:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:32:07,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 168 [2020-10-26 20:32:07,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:07,548 INFO L225 Difference]: With dead ends: 4874 [2020-10-26 20:32:07,548 INFO L226 Difference]: Without dead ends: 2478 [2020-10-26 20:32:07,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:32:07,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2020-10-26 20:32:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2325. [2020-10-26 20:32:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2325 states. [2020-10-26 20:32:07,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2873 transitions. [2020-10-26 20:32:07,632 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2873 transitions. Word has length 168 [2020-10-26 20:32:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:07,632 INFO L481 AbstractCegarLoop]: Abstraction has 2325 states and 2873 transitions. [2020-10-26 20:32:07,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2873 transitions. [2020-10-26 20:32:07,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-26 20:32:07,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:07,640 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:07,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:32:07,640 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:07,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:07,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1243486931, now seen corresponding path program 1 times [2020-10-26 20:32:07,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:07,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398006495] [2020-10-26 20:32:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:07,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:07,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:07,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:09,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2206 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:32:09,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:10,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:10,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:10,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:10,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:10,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:10,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:10,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:10,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:10,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:10,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:32:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:10,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:10,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:10,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:10,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:10,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:32:10,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398006495] [2020-10-26 20:32:10,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:10,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:10,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519058225] [2020-10-26 20:32:10,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:10,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:10,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:10,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:10,228 INFO L87 Difference]: Start difference. First operand 2325 states and 2873 transitions. Second operand 7 states. [2020-10-26 20:32:10,358 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:12,000 INFO L93 Difference]: Finished difference Result 4604 states and 5718 transitions. [2020-10-26 20:32:12,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:32:12,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-10-26 20:32:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:12,012 INFO L225 Difference]: With dead ends: 4604 [2020-10-26 20:32:12,012 INFO L226 Difference]: Without dead ends: 2196 [2020-10-26 20:32:12,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2020-10-26 20:32:12,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2182. [2020-10-26 20:32:12,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2020-10-26 20:32:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2508 transitions. [2020-10-26 20:32:12,083 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2508 transitions. Word has length 171 [2020-10-26 20:32:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:12,084 INFO L481 AbstractCegarLoop]: Abstraction has 2182 states and 2508 transitions. [2020-10-26 20:32:12,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:12,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2508 transitions. [2020-10-26 20:32:12,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-26 20:32:12,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:12,090 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:12,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:32:12,090 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:12,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:12,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1270807659, now seen corresponding path program 1 times [2020-10-26 20:32:12,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:12,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427131460] [2020-10-26 20:32:12,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:12,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:12,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:13,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-26 20:32:14,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:14,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2556 [2020-10-26 20:32:14,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:14,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:14,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:14,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:14,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:14,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:32:14,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:14,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:14,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:32:14,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:14,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:32:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:14,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:32:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:14,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:14,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:14,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:14,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:32:14,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:14,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:32:15,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427131460] [2020-10-26 20:32:15,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:15,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:15,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369699910] [2020-10-26 20:32:15,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:15,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:15,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:15,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:15,007 INFO L87 Difference]: Start difference. First operand 2182 states and 2508 transitions. Second operand 8 states. [2020-10-26 20:32:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:16,726 INFO L93 Difference]: Finished difference Result 5585 states and 6583 transitions. [2020-10-26 20:32:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:32:16,730 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 181 [2020-10-26 20:32:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:16,747 INFO L225 Difference]: With dead ends: 5585 [2020-10-26 20:32:16,748 INFO L226 Difference]: Without dead ends: 3469 [2020-10-26 20:32:16,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:32:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2020-10-26 20:32:16,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 3294. [2020-10-26 20:32:16,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3294 states. [2020-10-26 20:32:16,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 3863 transitions. [2020-10-26 20:32:16,858 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 3863 transitions. Word has length 181 [2020-10-26 20:32:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:16,859 INFO L481 AbstractCegarLoop]: Abstraction has 3294 states and 3863 transitions. [2020-10-26 20:32:16,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:16,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 3863 transitions. [2020-10-26 20:32:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-26 20:32:16,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:16,868 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:16,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:32:16,869 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:16,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1552828351, now seen corresponding path program 1 times [2020-10-26 20:32:16,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:16,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836159032] [2020-10-26 20:32:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:16,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:16,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:18,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3149 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:20,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:32:20,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:20,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:20,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:20,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:20,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:20,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:20,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:20,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:32:20,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:32:20,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:32:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:20,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:20,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:32:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:20,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:20,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:20,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:20,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:32:20,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836159032] [2020-10-26 20:32:20,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:20,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:20,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122404972] [2020-10-26 20:32:20,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:20,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:20,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:20,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:20,417 INFO L87 Difference]: Start difference. First operand 3294 states and 3863 transitions. Second operand 7 states. [2020-10-26 20:32:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:21,981 INFO L93 Difference]: Finished difference Result 7088 states and 8356 transitions. [2020-10-26 20:32:21,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:32:21,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-26 20:32:21,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:22,002 INFO L225 Difference]: With dead ends: 7088 [2020-10-26 20:32:22,002 INFO L226 Difference]: Without dead ends: 3860 [2020-10-26 20:32:22,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:32:22,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2020-10-26 20:32:22,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 3856. [2020-10-26 20:32:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3856 states. [2020-10-26 20:32:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 4510 transitions. [2020-10-26 20:32:22,138 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 4510 transitions. Word has length 187 [2020-10-26 20:32:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:22,138 INFO L481 AbstractCegarLoop]: Abstraction has 3856 states and 4510 transitions. [2020-10-26 20:32:22,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 4510 transitions. [2020-10-26 20:32:22,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-26 20:32:22,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:22,151 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:22,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:32:22,152 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1582047919, now seen corresponding path program 1 times [2020-10-26 20:32:22,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:22,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232481074] [2020-10-26 20:32:22,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:22,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:23,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-26 20:32:25,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3129 [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:32:25,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:25,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:25,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:25,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:25,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 20:32:25,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:25,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-26 20:32:25,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:25,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:25,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:32:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:25,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:25,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:25,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:25,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:25,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:25,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:25,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:25,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:25,825 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 72 proven. 35 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:32:25,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [232481074] [2020-10-26 20:32:25,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:25,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:25,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441111814] [2020-10-26 20:32:25,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:25,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:25,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:25,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:25,828 INFO L87 Difference]: Start difference. First operand 3856 states and 4510 transitions. Second operand 8 states. [2020-10-26 20:32:26,589 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:27,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:27,646 INFO L93 Difference]: Finished difference Result 7807 states and 9145 transitions. [2020-10-26 20:32:27,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:27,647 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-10-26 20:32:27,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:27,667 INFO L225 Difference]: With dead ends: 7807 [2020-10-26 20:32:27,667 INFO L226 Difference]: Without dead ends: 3862 [2020-10-26 20:32:27,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:27,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2020-10-26 20:32:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 3578. [2020-10-26 20:32:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3578 states. [2020-10-26 20:32:27,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 4126 transitions. [2020-10-26 20:32:27,782 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 4126 transitions. Word has length 201 [2020-10-26 20:32:27,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:27,782 INFO L481 AbstractCegarLoop]: Abstraction has 3578 states and 4126 transitions. [2020-10-26 20:32:27,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:27,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 4126 transitions. [2020-10-26 20:32:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 20:32:27,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:27,792 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 20:32:27,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:32:27,792 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:27,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:27,793 INFO L82 PathProgramCache]: Analyzing trace with hash 173165560, now seen corresponding path program 1 times [2020-10-26 20:32:27,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:27,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485398626] [2020-10-26 20:32:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:27,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:29,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2916 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:32:30,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:30,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:30,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:30,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:30,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:30,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:30,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:30,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:32:30,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:32:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:30,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:30,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:32:31,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:32:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:31,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:32:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:31,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:31,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:31,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:31,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:31,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:31,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 99 proven. 41 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:32:31,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485398626] [2020-10-26 20:32:31,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:31,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:31,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119576953] [2020-10-26 20:32:31,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:31,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:31,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:31,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:31,293 INFO L87 Difference]: Start difference. First operand 3578 states and 4126 transitions. Second operand 8 states. [2020-10-26 20:32:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:33,027 INFO L93 Difference]: Finished difference Result 7795 states and 9101 transitions. [2020-10-26 20:32:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:33,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 218 [2020-10-26 20:32:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:33,049 INFO L225 Difference]: With dead ends: 7795 [2020-10-26 20:32:33,049 INFO L226 Difference]: Without dead ends: 4283 [2020-10-26 20:32:33,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:32:33,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2020-10-26 20:32:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 4124. [2020-10-26 20:32:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4124 states. [2020-10-26 20:32:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 4764 transitions. [2020-10-26 20:32:33,180 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 4764 transitions. Word has length 218 [2020-10-26 20:32:33,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:33,180 INFO L481 AbstractCegarLoop]: Abstraction has 4124 states and 4764 transitions. [2020-10-26 20:32:33,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:33,180 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 4764 transitions. [2020-10-26 20:32:33,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-26 20:32:33,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:33,193 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:33,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:32:33,193 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:33,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:33,194 INFO L82 PathProgramCache]: Analyzing trace with hash -800412960, now seen corresponding path program 1 times [2020-10-26 20:32:33,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:33,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924306897] [2020-10-26 20:32:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:33,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:34,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-26 20:32:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1602 [2020-10-26 20:32:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:32:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:34,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:34,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:35,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:35,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:35,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:35,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:35,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:35,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:35,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:35,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:35,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:35,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:35,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:32:35,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:32:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:35,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:35,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:35,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:35,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:32:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:35,205 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 14 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-26 20:32:35,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924306897] [2020-10-26 20:32:35,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:35,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:35,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936635446] [2020-10-26 20:32:35,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:35,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:35,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:35,208 INFO L87 Difference]: Start difference. First operand 4124 states and 4764 transitions. Second operand 7 states. [2020-10-26 20:32:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:37,167 INFO L93 Difference]: Finished difference Result 8770 states and 10211 transitions. [2020-10-26 20:32:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:32:37,167 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 234 [2020-10-26 20:32:37,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:37,184 INFO L225 Difference]: With dead ends: 8770 [2020-10-26 20:32:37,185 INFO L226 Difference]: Without dead ends: 4712 [2020-10-26 20:32:37,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:37,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2020-10-26 20:32:37,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4275. [2020-10-26 20:32:37,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4275 states. [2020-10-26 20:32:37,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4275 states to 4275 states and 4809 transitions. [2020-10-26 20:32:37,348 INFO L78 Accepts]: Start accepts. Automaton has 4275 states and 4809 transitions. Word has length 234 [2020-10-26 20:32:37,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:37,349 INFO L481 AbstractCegarLoop]: Abstraction has 4275 states and 4809 transitions. [2020-10-26 20:32:37,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:37,349 INFO L276 IsEmpty]: Start isEmpty. Operand 4275 states and 4809 transitions. [2020-10-26 20:32:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-26 20:32:37,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:37,363 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:37,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:32:37,363 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:37,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1597808675, now seen corresponding path program 1 times [2020-10-26 20:32:37,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:37,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871144730] [2020-10-26 20:32:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:37,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1308 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:32:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:38,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:38,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:38,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:38,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:32:38,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:38,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:32:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:38,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:32:39,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:32:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:32:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:39,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:32:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:32:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:32:39,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:32:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:39,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:39,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:39,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:39,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:39,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:39,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 175 proven. 41 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-26 20:32:39,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871144730] [2020-10-26 20:32:39,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:39,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:39,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285670082] [2020-10-26 20:32:39,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:39,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:39,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:39,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:39,260 INFO L87 Difference]: Start difference. First operand 4275 states and 4809 transitions. Second operand 7 states. [2020-10-26 20:32:40,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:40,960 INFO L93 Difference]: Finished difference Result 8647 states and 9739 transitions. [2020-10-26 20:32:40,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:32:40,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-26 20:32:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:40,976 INFO L225 Difference]: With dead ends: 8647 [2020-10-26 20:32:40,976 INFO L226 Difference]: Without dead ends: 4438 [2020-10-26 20:32:40,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:32:40,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2020-10-26 20:32:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 4420. [2020-10-26 20:32:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4420 states. [2020-10-26 20:32:41,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 4882 transitions. [2020-10-26 20:32:41,091 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 4882 transitions. Word has length 265 [2020-10-26 20:32:41,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:41,091 INFO L481 AbstractCegarLoop]: Abstraction has 4420 states and 4882 transitions. [2020-10-26 20:32:41,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:41,091 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 4882 transitions. [2020-10-26 20:32:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-26 20:32:41,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:41,104 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:41,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:32:41,105 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:41,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:41,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1686425746, now seen corresponding path program 1 times [2020-10-26 20:32:41,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:41,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829526637] [2020-10-26 20:32:41,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:41,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:41,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1299 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:32:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:32:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:42,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:32:42,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:42,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:42,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:42,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:42,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:42,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:42,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:32:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:42,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:32:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:32:42,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:32:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:42,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:32:42,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:32:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:42,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:42,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:42,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:42,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:42,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 187 proven. 14 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-26 20:32:42,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829526637] [2020-10-26 20:32:42,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:42,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:32:42,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930461155] [2020-10-26 20:32:42,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:32:42,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:42,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:32:42,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:42,912 INFO L87 Difference]: Start difference. First operand 4420 states and 4882 transitions. Second operand 8 states. [2020-10-26 20:32:43,047 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-26 20:32:45,466 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:32:45,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:45,500 INFO L93 Difference]: Finished difference Result 9086 states and 10050 transitions. [2020-10-26 20:32:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 20:32:45,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 276 [2020-10-26 20:32:45,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:45,516 INFO L225 Difference]: With dead ends: 9086 [2020-10-26 20:32:45,517 INFO L226 Difference]: Without dead ends: 4458 [2020-10-26 20:32:45,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 20:32:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2020-10-26 20:32:45,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4434. [2020-10-26 20:32:45,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4434 states. [2020-10-26 20:32:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4434 states to 4434 states and 4854 transitions. [2020-10-26 20:32:45,640 INFO L78 Accepts]: Start accepts. Automaton has 4434 states and 4854 transitions. Word has length 276 [2020-10-26 20:32:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:45,641 INFO L481 AbstractCegarLoop]: Abstraction has 4434 states and 4854 transitions. [2020-10-26 20:32:45,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:32:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4434 states and 4854 transitions. [2020-10-26 20:32:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2020-10-26 20:32:45,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:45,656 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-26 20:32:45,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:32:45,656 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:45,657 INFO L82 PathProgramCache]: Analyzing trace with hash -506459759, now seen corresponding path program 1 times [2020-10-26 20:32:45,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:45,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211679637] [2020-10-26 20:32:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:45,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-26 20:32:46,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:46,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 582 [2020-10-26 20:32:46,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-26 20:32:46,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 20:32:46,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:32:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:32:46,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:46,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:32:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:32:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:46,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:32:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:46,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:32:46,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:46,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:32:46,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:46,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:32:46,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:47,179 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-26 20:32:47,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211679637] [2020-10-26 20:32:47,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:47,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:47,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018277699] [2020-10-26 20:32:47,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:32:47,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:47,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:32:47,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:32:47,184 INFO L87 Difference]: Start difference. First operand 4434 states and 4854 transitions. Second operand 5 states. [2020-10-26 20:32:47,923 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-26 20:32:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:48,342 INFO L93 Difference]: Finished difference Result 8891 states and 9770 transitions. [2020-10-26 20:32:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:32:48,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 287 [2020-10-26 20:32:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:48,360 INFO L225 Difference]: With dead ends: 8891 [2020-10-26 20:32:48,360 INFO L226 Difference]: Without dead ends: 4444 [2020-10-26 20:32:48,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2020-10-26 20:32:48,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 4432. [2020-10-26 20:32:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4432 states. [2020-10-26 20:32:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 4849 transitions. [2020-10-26 20:32:48,466 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 4849 transitions. Word has length 287 [2020-10-26 20:32:48,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:48,466 INFO L481 AbstractCegarLoop]: Abstraction has 4432 states and 4849 transitions. [2020-10-26 20:32:48,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:32:48,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 4849 transitions. [2020-10-26 20:32:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-26 20:32:48,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:48,482 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:48,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:32:48,482 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:48,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:48,483 INFO L82 PathProgramCache]: Analyzing trace with hash -4793429, now seen corresponding path program 1 times [2020-10-26 20:32:48,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:48,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500736159] [2020-10-26 20:32:48,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-26 20:32:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-10-26 20:32:49,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:32:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-26 20:32:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:49,591 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:49,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:49,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:32:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:49,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:49,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:32:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:49,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:49,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:32:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:49,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:32:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:49,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:49,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:49,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:32:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 20:32:49,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:32:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:50,017 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:32:50,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500736159] [2020-10-26 20:32:50,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:50,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:50,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453873771] [2020-10-26 20:32:50,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:32:50,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:50,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:32:50,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:32:50,020 INFO L87 Difference]: Start difference. First operand 4432 states and 4849 transitions. Second operand 5 states. [2020-10-26 20:32:50,985 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-26 20:32:51,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:51,373 INFO L93 Difference]: Finished difference Result 8753 states and 9584 transitions. [2020-10-26 20:32:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:32:51,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 325 [2020-10-26 20:32:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:51,375 INFO L225 Difference]: With dead ends: 8753 [2020-10-26 20:32:51,376 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:32:51,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:32:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:32:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:32:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:32:51,395 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 325 [2020-10-26 20:32:51,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:51,396 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:32:51,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:32:51,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:32:51,396 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:32:51,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 20:32:51,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:32:52,721 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 228 [2020-10-26 20:32:53,143 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 218 [2020-10-26 20:32:53,331 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 40 [2020-10-26 20:32:56,192 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 280 DAG size of output: 108 [2020-10-26 20:32:57,250 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2020-10-26 20:32:57,910 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 74 [2020-10-26 20:32:58,989 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 75 [2020-10-26 20:32:58,994 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:32:58,994 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:32:58,995 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:32:58,995 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:32:58,995 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:32:58,995 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,996 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,997 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:32:58,997 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:32:58,997 INFO L270 CegarLoopResult]: At program point L532(line 532) the Hoare annotation is: (let ((.cse6 (not (= |old(~a17~0)| 1))) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse4 (not (= ~a12~0 8))) (.cse5 (not (<= |old(~a20~0)| 0))) (.cse7 (not (<= |old(~a16~0)| 4))) (.cse8 (not (= 15 |old(~a8~0)|))) (.cse9 (= |old(~a7~0)| 1)) (.cse11 (not (<= |old(~a8~0)| 13))) (.cse10 (not (= 6 |old(~a16~0)|))) (.cse12 (not (= 5 |old(~a16~0)|))) (.cse14 (not (= |old(~a7~0)| 0))) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse13 (not (= |old(~a20~0)| 1))) (.cse3 (not (= |old(~a21~0)| 1)))) (and (or .cse0 (not (<= 14 |old(~a8~0)|)) .cse1 (not (<= 1 |old(~a7~0)|)) (not (<= |old(~a7~0)| 1)) (not (<= |old(~a8~0)| 14)) .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse8 .cse3 .cse9) (or .cse10 .cse8 .cse3) (or (not (= 0 |old(~a20~0)|)) .cse3 (not (= 4 |old(~a16~0)|))) (or .cse6 .cse11) (or .cse0 (not (<= |old(~a8~0)| 15)) .cse1 (not (<= 15 |old(~a8~0)|)) .cse2 .cse3 .cse4 .cse5) (or .cse11 .cse7 .cse3 .cse9) (or .cse12 .cse8 .cse3 .cse9) (or .cse11 .cse13) (or .cse10 .cse3 .cse14) (or .cse12 .cse3 .cse14) (or .cse1 .cse13 .cse3))) [2020-10-26 20:32:58,997 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:32:58,997 INFO L274 CegarLoopResult]: For program point L532-1(line 532) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,998 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:58,999 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:32:59,000 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:32:59,001 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:32:59,002 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:32:59,003 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:32:59,004 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:32:59,005 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:32:59,006 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,007 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse25 (= ~a7~0 |old(~a7~0)|)) (.cse4 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a21~0 1)) (.cse6 (= ~a20~0 |old(~a20~0)|)) (.cse7 (= ~a16~0 |old(~a16~0)|)) (.cse8 (= ~a8~0 |old(~a8~0)|))) (let ((.cse16 (not (= 6 |old(~a16~0)|))) (.cse20 (not (= |old(~a17~0)| 1))) (.cse23 (not (<= |old(~a8~0)| 13))) (.cse21 (not (<= |old(~a16~0)| 4))) (.cse19 (not (= 15 |old(~a8~0)|))) (.cse22 (= |old(~a7~0)| 1)) (.cse24 (not (= |old(~a20~0)| 1))) (.cse18 (and .cse25 .cse4 .cse5 .cse6 .cse7 .cse8)) (.cse0 (not (<= 5 |old(~a16~0)|))) (.cse3 (<= 1 ~a7~0)) (.cse9 (<= ~a7~0 1)) (.cse1 (not (<= |old(~a16~0)| 5))) (.cse2 (not (<= 1 |old(~a7~0)|))) (.cse10 (not (<= |old(~a7~0)| 1))) (.cse11 (not (<= |old(~a17~0)| 0))) (.cse13 (not (= ~a12~0 8))) (.cse14 (not (<= |old(~a20~0)| 0))) (.cse26 (= 5 ~a16~0)) (.cse15 (= ~a7~0 0)) (.cse27 (not (= 5 |old(~a16~0)|))) (.cse12 (not (= |old(~a21~0)| 1))) (.cse17 (not (= |old(~a7~0)| 0)))) (and (or .cse0 (not (<= 14 |old(~a8~0)|)) .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) .cse10 (not (<= |old(~a8~0)| 14)) .cse11 .cse12 .cse13 .cse14) (or (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse15) .cse16 .cse12 .cse17) (or .cse16 .cse18 .cse19 .cse12) (or .cse20 .cse21 .cse18 .cse19 .cse12 .cse22) (or (and (or .cse20 .cse23) (or .cse23 .cse24)) (and .cse25 .cse4 (= ~a21~0 |old(~a21~0)|) .cse6 .cse7 .cse8)) (or .cse23 .cse21 .cse18 .cse12 .cse22) (or (and .cse25 .cse4 .cse5 .cse6 .cse8 (= ~a16~0 4)) (not (= 0 |old(~a20~0)|)) .cse12 (not (= 4 |old(~a16~0)|))) (or (and .cse25 .cse4 .cse5 .cse6 .cse8 .cse26) .cse27 .cse19 .cse12 .cse22) (or .cse1 .cse24 .cse12 .cse18) (or .cse0 (not (<= |old(~a8~0)| 15)) (and .cse3 .cse4 .cse5 .cse6 .cse7 (<= ~a8~0 15) (<= 15 ~a8~0) .cse9) .cse1 (not (<= 15 |old(~a8~0)|)) .cse2 .cse10 .cse11 .cse12 .cse13 .cse14) (or (and .cse4 .cse5 .cse6 .cse8 .cse26 .cse15) .cse27 .cse12 .cse17)))) [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:32:59,008 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,009 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,010 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:32:59,011 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:32:59,012 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:32:59,012 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:32:59,012 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:32:59,013 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:32:59,013 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (= ~a8~0 |old(~a8~0)|)) (.cse10 (= 5 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse4 (<= ~a17~0 0)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 5 ~a16~0)) (.cse7 (<= 1 ~a21~0)) (.cse8 (<= ~a20~0 0)) (.cse12 (= ~a17~0 1)) (.cse14 (= ~a20~0 1)) (.cse11 (<= ~a16~0 4)) (.cse9 (not (= ~a7~0 1))) (.cse15 (<= ~a8~0 13)) (.cse1 (= ~a16~0 6)) (.cse13 (= ~a7~0 0)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 .cse2) (and (<= 1 ~a7~0) (<= 14 ~a8~0) (<= ~a8~0 14) .cse3 .cse4 .cse5 .cse6 .cse7 (<= ~a7~0 1) .cse8) (and .cse0 .cse2 .cse9 .cse10) (and .cse0 .cse11 .cse2 .cse9 .cse12) (and .cse0 .cse10 .cse13) (and .cse0 .cse3 .cse14) (not (= |old(~a20~0)| 1)) (and .cse3 .cse4 .cse5 .cse6 .cse7 (<= ~a8~0 15) (<= 15 ~a8~0) .cse8) (and .cse12 .cse15) (and .cse14 .cse15) (not (= |old(~a21~0)| 1)) (and .cse0 .cse11 .cse9 .cse15) (and .cse0 .cse1 .cse13) (not (= |old(~a17~0)| 1)) (and (= ~a20~0 0) .cse0 (= ~a16~0 4)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:32:59,013 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:32:59,013 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:32:59,013 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse2 (= ~a8~0 |old(~a8~0)|)) (.cse10 (= 5 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse4 (<= ~a17~0 0)) (.cse5 (<= ~a21~0 1)) (.cse6 (<= 5 ~a16~0)) (.cse7 (<= 1 ~a21~0)) (.cse8 (<= ~a20~0 0)) (.cse12 (= ~a17~0 1)) (.cse14 (= ~a20~0 1)) (.cse11 (<= ~a16~0 4)) (.cse9 (not (= ~a7~0 1))) (.cse15 (<= ~a8~0 13)) (.cse1 (= ~a16~0 6)) (.cse13 (= ~a7~0 0)) (.cse0 (= ~a21~0 1))) (or (and .cse0 .cse1 .cse2) (and (<= 1 ~a7~0) (<= 14 ~a8~0) (<= ~a8~0 14) .cse3 .cse4 .cse5 .cse6 .cse7 (<= ~a7~0 1) .cse8) (and .cse0 .cse2 .cse9 .cse10) (and .cse0 .cse11 .cse2 .cse9 .cse12) (and .cse0 .cse10 .cse13) (and .cse0 .cse3 .cse14) (not (= |old(~a20~0)| 1)) (and .cse3 .cse4 .cse5 .cse6 .cse7 (<= ~a8~0 15) (<= 15 ~a8~0) .cse8) (and .cse12 .cse15) (and .cse14 .cse15) (not (= |old(~a21~0)| 1)) (and .cse0 .cse11 .cse9 .cse15) (and .cse0 .cse1 .cse13) (not (= |old(~a17~0)| 1)) (and (= ~a20~0 0) .cse0 (= ~a16~0 4)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:32:59,014 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:32:59,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:32:59 BoogieIcfgContainer [2020-10-26 20:32:59,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:32:59,065 INFO L168 Benchmark]: Toolchain (without parser) took 96271.68 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 124.7 MB in the beginning and 822.6 MB in the end (delta: -697.8 MB). Peak memory consumption was 694.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:59,065 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:32:59,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.14 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 129.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:59,066 INFO L168 Benchmark]: Boogie Preprocessor took 144.44 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:59,067 INFO L168 Benchmark]: RCFGBuilder took 1404.35 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:59,069 INFO L168 Benchmark]: TraceAbstraction took 93954.74 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 101.8 MB in the beginning and 822.6 MB in the end (delta: -720.8 MB). Peak memory consumption was 670.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:32:59,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 751.14 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 129.6 MB in the end (delta: -5.5 MB). Peak memory consumption was 30.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 144.44 ms. Allocated memory is still 151.0 MB. Free memory was 129.6 MB in the beginning and 124.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1404.35 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 102.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 93954.74 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 101.8 MB in the beginning and 822.6 MB in the end (delta: -720.8 MB). Peak memory consumption was 670.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((((a21 == 1 && a16 == 6) && a8 == \old(a8)) || (((((((((1 <= a7 && 14 <= a8) && a8 <= 14) && a16 <= 5) && a17 <= 0) && a21 <= 1) && 5 <= a16) && 1 <= a21) && a7 <= 1) && a20 <= 0)) || (((a21 == 1 && a8 == \old(a8)) && !(a7 == 1)) && 5 == a16)) || ((((a21 == 1 && a16 <= 4) && a8 == \old(a8)) && !(a7 == 1)) && a17 == 1)) || ((a21 == 1 && 5 == a16) && a7 == 0)) || ((a21 == 1 && a16 <= 5) && a20 == 1)) || !(\old(a20) == 1)) || (((((((a16 <= 5 && a17 <= 0) && a21 <= 1) && 5 <= a16) && 1 <= a21) && a8 <= 15) && 15 <= a8) && a20 <= 0)) || (a17 == 1 && a8 <= 13)) || (a20 == 1 && a8 <= 13)) || !(\old(a21) == 1)) || (((a21 == 1 && a16 <= 4) && !(a7 == 1)) && a8 <= 13)) || ((a21 == 1 && a16 == 6) && a7 == 0)) || !(\old(a17) == 1)) || ((a20 == 0 && a21 == 1) && a16 == 4)) || !(5 == \old(a16))) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 86.2s, OverallIterations: 17, TraceHistogramMax: 6, AutomataDifference: 34.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 441 SDtfs, 7326 SDslu, 634 SDs, 0 SdLazy, 13907 SolverSat, 1722 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 183 SyntacticMatches, 8 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4434occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 1916 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 711 PreInvPairs, 789 NumberOfFragments, 1196 HoareAnnotationTreeSize, 711 FomulaSimplifications, 27249 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12666 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 47.2s InterpolantComputationTime, 3369 NumberOfCodeBlocks, 3369 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 3352 ConstructedInterpolants, 0 QuantifiedInterpolants, 3742910 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 2061/2319 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...