/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/Problem10_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:31:36,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:31:36,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:31:36,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:31:36,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:31:36,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:31:36,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:31:36,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:31:36,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:31:36,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:31:36,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:31:36,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:31:36,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:31:36,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:31:36,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:31:36,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:31:36,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:31:36,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:31:36,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:31:36,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:31:36,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:31:36,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:31:36,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:31:36,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:31:36,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:31:36,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:31:36,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:31:36,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:31:36,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:31:36,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-26 22:31:36,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:31:36,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:31:36,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:31:36,372 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 22:31:36,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:31:36,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:31:36,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:31:36,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:31:36,432 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:31:36,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:31:36,432 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:31:36,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:31:36,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:31:36,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:31:36,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:31:36,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:31:36,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:31:36,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:31:36,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:31:36,436 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:31:36,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:31:36,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:31:36,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:31:36,437 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:31:36,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:31:36,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:31:36,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:31:36,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:31:36,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:31:36,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:31:36,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:31:36,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:31:36,439 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:31:36,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:31:36,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:31:36,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:31:36,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:31:36,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:31:36,876 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:31:36,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-26 22:31:36,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d4732ab3/6e94b46ae89c451cb2a61b7f0b3850fb/FLAG83970c583 [2020-10-26 22:31:37,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:31:37,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label27.c [2020-10-26 22:31:37,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d4732ab3/6e94b46ae89c451cb2a61b7f0b3850fb/FLAG83970c583 [2020-10-26 22:31:37,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d4732ab3/6e94b46ae89c451cb2a61b7f0b3850fb [2020-10-26 22:31:37,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:31:37,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:31:37,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:37,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:31:37,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:31:37,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:37" (1/1) ... [2020-10-26 22:31:37,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9d0f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:37, skipping insertion in model container [2020-10-26 22:31:37,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:31:37" (1/1) ... [2020-10-26 22:31:37,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:31:38,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:31:38,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:38,605 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:31:38,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:31:38,841 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:31:38,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38 WrapperNode [2020-10-26 22:31:38,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:31:38,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:31:38,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:31:38,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:31:38,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (1/1) ... [2020-10-26 22:31:38,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:31:38,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:31:38,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:31:38,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:31:38,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (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 22:31:39,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:31:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:31:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:31:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:31:39,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:31:39,090 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:31:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:31:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:31:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:31:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:31:39,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:31:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:31:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:31:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:31:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:31:39,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:31:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:31:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:31:39,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:31:40,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:31:40,724 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:31:40,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:40 BoogieIcfgContainer [2020-10-26 22:31:40,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:31:40,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:31:40,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:31:40,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:31:40,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:31:37" (1/3) ... [2020-10-26 22:31:40,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa4c2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:40, skipping insertion in model container [2020-10-26 22:31:40,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:31:38" (2/3) ... [2020-10-26 22:31:40,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa4c2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:31:40, skipping insertion in model container [2020-10-26 22:31:40,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:31:40" (3/3) ... [2020-10-26 22:31:40,742 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label27.c [2020-10-26 22:31:40,760 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:31:40,767 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:31:40,785 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:31:40,845 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:31:40,846 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:31:40,846 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:31:40,846 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:31:40,846 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:31:40,846 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:31:40,846 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:31:40,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:31:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:31:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-26 22:31:40,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:40,924 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] [2020-10-26 22:31:40,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:40,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:40,939 INFO L82 PathProgramCache]: Analyzing trace with hash 544365738, now seen corresponding path program 1 times [2020-10-26 22:31:40,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:40,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480777065] [2020-10-26 22:31:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:41,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:41,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-26 22:31:41,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:41,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 774 [2020-10-26 22:31:41,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 22:31:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:31:42,245 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-26 22:31:42,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:42,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:42,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:42,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:42,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:42,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:31:42,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:42,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:42,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:42,340 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 22:31:42,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480777065] [2020-10-26 22:31:42,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:42,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:31:42,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428851475] [2020-10-26 22:31:42,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:31:42,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:42,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:31:42,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:31:42,380 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:31:44,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:44,745 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-26 22:31:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:44,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-26 22:31:44,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:44,763 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:31:44,764 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:31:44,772 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:31:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-26 22:31:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-26 22:31:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-26 22:31:44,858 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 67 [2020-10-26 22:31:44,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:44,859 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-26 22:31:44,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:31:44,860 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-26 22:31:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-26 22:31:44,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:44,867 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:44,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:31:44,867 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:44,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:44,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1472539947, now seen corresponding path program 1 times [2020-10-26 22:31:44,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:44,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662347161] [2020-10-26 22:31:44,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:44,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:45,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:45,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:46,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-26 22:31:46,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:46,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1369 [2020-10-26 22:31:46,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:46,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:31:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:31:46,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:31:46,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:31:46,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:46,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:46,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:46,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:31:46,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:46,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:46,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:31:46,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:46,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:46,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:46,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:46,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:31:46,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:46,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:31:46,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:46,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:46,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:31:46,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:46,695 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:46,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662347161] [2020-10-26 22:31:46,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:31:46,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:31:46,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794158374] [2020-10-26 22:31:46,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:46,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:46,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:46,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:46,700 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-26 22:31:48,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:48,726 INFO L93 Difference]: Finished difference Result 914 states and 1340 transitions. [2020-10-26 22:31:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:31:48,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-10-26 22:31:48,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:48,741 INFO L225 Difference]: With dead ends: 914 [2020-10-26 22:31:48,741 INFO L226 Difference]: Without dead ends: 623 [2020-10-26 22:31:48,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:31:48,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-26 22:31:48,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 597. [2020-10-26 22:31:48,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-26 22:31:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 767 transitions. [2020-10-26 22:31:48,848 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 767 transitions. Word has length 139 [2020-10-26 22:31:48,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:48,848 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 767 transitions. [2020-10-26 22:31:48,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:31:48,849 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 767 transitions. [2020-10-26 22:31:48,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-26 22:31:48,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:48,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:31:48,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:31:48,854 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash 336430597, now seen corresponding path program 1 times [2020-10-26 22:31:48,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:48,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570959360] [2020-10-26 22:31:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:48,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:31:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-26 22:31:49,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:49,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:31:49,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:49,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:49,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:49,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:49,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:49,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:31:49,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:49,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-26 22:31:49,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:49,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:31:49,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:31:49,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570959360] [2020-10-26 22:31:49,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:49,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:31:49,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184851295] [2020-10-26 22:31:49,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:31:49,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:49,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:31:49,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:31:49,749 INFO L87 Difference]: Start difference. First operand 597 states and 767 transitions. Second operand 5 states. [2020-10-26 22:31:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:51,046 INFO L93 Difference]: Finished difference Result 1217 states and 1575 transitions. [2020-10-26 22:31:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:31:51,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-26 22:31:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:51,055 INFO L225 Difference]: With dead ends: 1217 [2020-10-26 22:31:51,055 INFO L226 Difference]: Without dead ends: 603 [2020-10-26 22:31:51,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:31:51,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-26 22:31:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 597. [2020-10-26 22:31:51,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-26 22:31:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 762 transitions. [2020-10-26 22:31:51,099 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 762 transitions. Word has length 146 [2020-10-26 22:31:51,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:51,099 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 762 transitions. [2020-10-26 22:31:51,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:31:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 762 transitions. [2020-10-26 22:31:51,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-26 22:31:51,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:51,105 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:51,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:31:51,106 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1658079512, now seen corresponding path program 1 times [2020-10-26 22:31:51,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:51,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521260545] [2020-10-26 22:31:51,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:51,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:51,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:52,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:52,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-26 22:31:52,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:31:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-10-26 22:31:52,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:52,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-26 22:31:52,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-26 22:31:52,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:52,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:52,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:52,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:52,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:31:52,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:52,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:52,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:52,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:52,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:52,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:52,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:52,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:52,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:52,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:52,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:52,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:31:52,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:52,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 22:31:52,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:52,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:31:52,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:52,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521260545] [2020-10-26 22:31:52,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:52,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:31:52,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324051483] [2020-10-26 22:31:52,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:31:52,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:52,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:31:52,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:31:52,670 INFO L87 Difference]: Start difference. First operand 597 states and 762 transitions. Second operand 8 states. [2020-10-26 22:31:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:31:55,607 INFO L93 Difference]: Finished difference Result 1504 states and 2018 transitions. [2020-10-26 22:31:55,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 22:31:55,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 209 [2020-10-26 22:31:55,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:31:55,619 INFO L225 Difference]: With dead ends: 1504 [2020-10-26 22:31:55,619 INFO L226 Difference]: Without dead ends: 913 [2020-10-26 22:31:55,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 22:31:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-10-26 22:31:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 897. [2020-10-26 22:31:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-10-26 22:31:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1149 transitions. [2020-10-26 22:31:55,677 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1149 transitions. Word has length 209 [2020-10-26 22:31:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:31:55,678 INFO L481 AbstractCegarLoop]: Abstraction has 897 states and 1149 transitions. [2020-10-26 22:31:55,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:31:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1149 transitions. [2020-10-26 22:31:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-26 22:31:55,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:31:55,686 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:31:55,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:31:55,687 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:31:55,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:31:55,687 INFO L82 PathProgramCache]: Analyzing trace with hash -411900036, now seen corresponding path program 1 times [2020-10-26 22:31:55,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:31:55,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566076259] [2020-10-26 22:31:55,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:31:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:55,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:55,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-26 22:31:57,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:31:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1939 [2020-10-26 22:31:57,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:31:57,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-26 22:31:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:31:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:31:57,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:31:57,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:31:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:31:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:31:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:57,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:57,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:31:57,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:57,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-26 22:31:57,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:31:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:31:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:31:57,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:57,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:31:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:31:57,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:31:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:31:58,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:31:58,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:31:58,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-26 22:31:58,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:31:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:31:58,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:31:58,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:31:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:31:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:31:58,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566076259] [2020-10-26 22:31:58,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:31:58,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:31:58,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34124555] [2020-10-26 22:31:58,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:31:58,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:31:58,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:31:58,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:31:58,199 INFO L87 Difference]: Start difference. First operand 897 states and 1149 transitions. Second operand 7 states. [2020-10-26 22:32:00,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:00,359 INFO L93 Difference]: Finished difference Result 2118 states and 2757 transitions. [2020-10-26 22:32:00,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:00,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 219 [2020-10-26 22:32:00,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:00,367 INFO L225 Difference]: With dead ends: 2118 [2020-10-26 22:32:00,368 INFO L226 Difference]: Without dead ends: 1227 [2020-10-26 22:32:00,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:32:00,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-10-26 22:32:00,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1199. [2020-10-26 22:32:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2020-10-26 22:32:00,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1486 transitions. [2020-10-26 22:32:00,422 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1486 transitions. Word has length 219 [2020-10-26 22:32:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:00,422 INFO L481 AbstractCegarLoop]: Abstraction has 1199 states and 1486 transitions. [2020-10-26 22:32:00,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:00,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1486 transitions. [2020-10-26 22:32:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-26 22:32:00,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:00,428 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:00,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:32:00,428 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:00,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:00,429 INFO L82 PathProgramCache]: Analyzing trace with hash -775063338, now seen corresponding path program 1 times [2020-10-26 22:32:00,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:00,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2022056201] [2020-10-26 22:32:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:00,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:03,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-26 22:32:05,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:05,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4821 [2020-10-26 22:32:05,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:05,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:32:05,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:32:05,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:05,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:32:05,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:05,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:05,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:32:05,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:05,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:32:05,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:32:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:05,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:05,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:32:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 118 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:05,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2022056201] [2020-10-26 22:32:05,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:05,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:05,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542430138] [2020-10-26 22:32:05,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:05,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:05,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:05,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:05,848 INFO L87 Difference]: Start difference. First operand 1199 states and 1486 transitions. Second operand 7 states. [2020-10-26 22:32:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:07,645 INFO L93 Difference]: Finished difference Result 2565 states and 3175 transitions. [2020-10-26 22:32:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:32:07,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2020-10-26 22:32:07,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:07,660 INFO L225 Difference]: With dead ends: 2565 [2020-10-26 22:32:07,661 INFO L226 Difference]: Without dead ends: 1372 [2020-10-26 22:32:07,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:07,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2020-10-26 22:32:07,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1352. [2020-10-26 22:32:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2020-10-26 22:32:07,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1650 transitions. [2020-10-26 22:32:07,732 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1650 transitions. Word has length 226 [2020-10-26 22:32:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:07,732 INFO L481 AbstractCegarLoop]: Abstraction has 1352 states and 1650 transitions. [2020-10-26 22:32:07,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:07,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1650 transitions. [2020-10-26 22:32:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-26 22:32:07,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:07,738 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:07,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:32:07,739 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:07,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:07,742 INFO L82 PathProgramCache]: Analyzing trace with hash -365820594, now seen corresponding path program 1 times [2020-10-26 22:32:07,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:07,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078134095] [2020-10-26 22:32:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:07,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:08,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:08,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-26 22:32:08,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1116 [2020-10-26 22:32:08,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:08,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-26 22:32:08,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:09,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:09,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:09,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:09,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:09,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:09,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:09,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:09,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:09,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:09,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-26 22:32:09,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:09,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:32:09,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:32:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 126 proven. 59 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:32:09,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078134095] [2020-10-26 22:32:09,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:09,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:09,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575029374] [2020-10-26 22:32:09,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:09,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:09,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:09,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:09,645 INFO L87 Difference]: Start difference. First operand 1352 states and 1650 transitions. Second operand 7 states. [2020-10-26 22:32:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:11,945 INFO L93 Difference]: Finished difference Result 2567 states and 3170 transitions. [2020-10-26 22:32:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:11,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 254 [2020-10-26 22:32:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:11,957 INFO L225 Difference]: With dead ends: 2567 [2020-10-26 22:32:11,957 INFO L226 Difference]: Without dead ends: 1364 [2020-10-26 22:32:11,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:11,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-26 22:32:12,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1205. [2020-10-26 22:32:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1205 states. [2020-10-26 22:32:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1377 transitions. [2020-10-26 22:32:12,005 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1377 transitions. Word has length 254 [2020-10-26 22:32:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:12,006 INFO L481 AbstractCegarLoop]: Abstraction has 1205 states and 1377 transitions. [2020-10-26 22:32:12,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:12,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1377 transitions. [2020-10-26 22:32:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-26 22:32:12,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:12,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:32:12,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:32:12,014 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1828477490, now seen corresponding path program 1 times [2020-10-26 22:32:12,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:12,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877529100] [2020-10-26 22:32:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:12,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:12,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-26 22:32:14,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:14,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2743 [2020-10-26 22:32:14,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:14,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-26 22:32:14,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:14,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:14,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:14,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:14,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:15,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:15,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:15,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:15,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-26 22:32:15,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:15,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-26 22:32:15,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:15,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-26 22:32:15,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:15,682 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:32:15,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877529100] [2020-10-26 22:32:15,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:15,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:15,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966107000] [2020-10-26 22:32:15,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:15,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:15,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:15,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:15,686 INFO L87 Difference]: Start difference. First operand 1205 states and 1377 transitions. Second operand 7 states. [2020-10-26 22:32:17,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:17,878 INFO L93 Difference]: Finished difference Result 3024 states and 3534 transitions. [2020-10-26 22:32:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:32:17,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 318 [2020-10-26 22:32:17,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:17,890 INFO L225 Difference]: With dead ends: 3024 [2020-10-26 22:32:17,890 INFO L226 Difference]: Without dead ends: 1968 [2020-10-26 22:32:17,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:32:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2020-10-26 22:32:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1954. [2020-10-26 22:32:17,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2020-10-26 22:32:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2215 transitions. [2020-10-26 22:32:17,951 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2215 transitions. Word has length 318 [2020-10-26 22:32:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:17,952 INFO L481 AbstractCegarLoop]: Abstraction has 1954 states and 2215 transitions. [2020-10-26 22:32:17,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:17,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2215 transitions. [2020-10-26 22:32:17,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-26 22:32:17,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:17,961 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:17,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:32:17,961 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:17,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash -469187349, now seen corresponding path program 1 times [2020-10-26 22:32:17,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:17,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1200279162] [2020-10-26 22:32:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:18,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:18,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-26 22:32:20,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:20,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2347 [2020-10-26 22:32:20,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 194 [2020-10-26 22:32:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 22:32:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:20,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:20,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:32:20,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:32:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 22:32:20,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:20,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-26 22:32:20,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:20,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:32:20,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:20,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-10-26 22:32:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:20,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:20,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:20,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:32:20,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:20,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-26 22:32:20,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:20,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:20,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:21,054 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 319 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 22:32:21,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1200279162] [2020-10-26 22:32:21,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:21,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:21,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980641715] [2020-10-26 22:32:21,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:21,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:21,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:21,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:21,064 INFO L87 Difference]: Start difference. First operand 1954 states and 2215 transitions. Second operand 7 states. [2020-10-26 22:32:22,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:22,587 INFO L93 Difference]: Finished difference Result 3824 states and 4417 transitions. [2020-10-26 22:32:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:32:22,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2020-10-26 22:32:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:22,599 INFO L225 Difference]: With dead ends: 3824 [2020-10-26 22:32:22,600 INFO L226 Difference]: Without dead ends: 2000 [2020-10-26 22:32:22,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:32:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2000 states. [2020-10-26 22:32:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2000 to 1960. [2020-10-26 22:32:22,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1960 states. [2020-10-26 22:32:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2220 transitions. [2020-10-26 22:32:22,667 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2220 transitions. Word has length 322 [2020-10-26 22:32:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:22,667 INFO L481 AbstractCegarLoop]: Abstraction has 1960 states and 2220 transitions. [2020-10-26 22:32:22,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:22,668 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2220 transitions. [2020-10-26 22:32:22,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-26 22:32:22,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:22,677 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-26 22:32:22,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:32:22,677 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1862779285, now seen corresponding path program 1 times [2020-10-26 22:32:22,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:22,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308171635] [2020-10-26 22:32:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:22,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:22,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:23,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 343 [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4482 [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:32:27,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:32:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-26 22:32:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:27,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:27,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:32:27,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:32:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 22:32:27,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:32:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:32:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:27,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:27,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:27,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:32:27,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:32:27,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:27,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 316 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 22:32:27,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308171635] [2020-10-26 22:32:27,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:27,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:32:27,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397478994] [2020-10-26 22:32:27,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:32:27,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:27,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:32:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:32:27,988 INFO L87 Difference]: Start difference. First operand 1960 states and 2220 transitions. Second operand 8 states. [2020-10-26 22:32:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:30,124 INFO L93 Difference]: Finished difference Result 4093 states and 4675 transitions. [2020-10-26 22:32:30,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:32:30,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 327 [2020-10-26 22:32:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:30,142 INFO L225 Difference]: With dead ends: 4093 [2020-10-26 22:32:30,143 INFO L226 Difference]: Without dead ends: 2282 [2020-10-26 22:32:30,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-10-26 22:32:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2020-10-26 22:32:30,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2252. [2020-10-26 22:32:30,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2252 states. [2020-10-26 22:32:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 2535 transitions. [2020-10-26 22:32:30,223 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 2535 transitions. Word has length 327 [2020-10-26 22:32:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:30,241 INFO L481 AbstractCegarLoop]: Abstraction has 2252 states and 2535 transitions. [2020-10-26 22:32:30,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:32:30,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 2535 transitions. [2020-10-26 22:32:30,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-26 22:32:30,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:30,247 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-26 22:32:30,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:32:30,247 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:30,248 INFO L82 PathProgramCache]: Analyzing trace with hash -417207339, now seen corresponding path program 1 times [2020-10-26 22:32:30,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:30,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263861582] [2020-10-26 22:32:30,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:30,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:30,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:31,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:32:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:32:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:32,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:32,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:32,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:32,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:32,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:32,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:32:32,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:32,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:32,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:32,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:32,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:32,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:32,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:32:32,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:32,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:32:32,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:32,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:32,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:32:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:32,434 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-26 22:32:32,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263861582] [2020-10-26 22:32:32,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:32,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:32:32,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377214250] [2020-10-26 22:32:32,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:32:32,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:32,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:32:32,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:32:32,437 INFO L87 Difference]: Start difference. First operand 2252 states and 2535 transitions. Second operand 7 states. [2020-10-26 22:32:34,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:34,718 INFO L93 Difference]: Finished difference Result 4665 states and 5349 transitions. [2020-10-26 22:32:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:32:34,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 340 [2020-10-26 22:32:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:34,732 INFO L225 Difference]: With dead ends: 4665 [2020-10-26 22:32:34,732 INFO L226 Difference]: Without dead ends: 2562 [2020-10-26 22:32:34,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:32:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2020-10-26 22:32:34,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2250. [2020-10-26 22:32:34,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2250 states. [2020-10-26 22:32:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2250 states to 2250 states and 2549 transitions. [2020-10-26 22:32:34,808 INFO L78 Accepts]: Start accepts. Automaton has 2250 states and 2549 transitions. Word has length 340 [2020-10-26 22:32:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:34,808 INFO L481 AbstractCegarLoop]: Abstraction has 2250 states and 2549 transitions. [2020-10-26 22:32:34,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:32:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2250 states and 2549 transitions. [2020-10-26 22:32:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2020-10-26 22:32:34,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:34,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:32:34,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:32:34,816 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:34,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1388430394, now seen corresponding path program 1 times [2020-10-26 22:32:34,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:34,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968259105] [2020-10-26 22:32:34,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:34,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:34,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 354 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:35,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:35,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:32:35,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:35,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:32:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:35,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:35,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-26 22:32:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-10-26 22:32:35,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968259105] [2020-10-26 22:32:35,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:35,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:35,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868498715] [2020-10-26 22:32:35,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:35,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:35,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:35,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:35,801 INFO L87 Difference]: Start difference. First operand 2250 states and 2549 transitions. Second operand 5 states. [2020-10-26 22:32:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:37,399 INFO L93 Difference]: Finished difference Result 4929 states and 5624 transitions. [2020-10-26 22:32:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:37,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 340 [2020-10-26 22:32:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:37,411 INFO L225 Difference]: With dead ends: 4929 [2020-10-26 22:32:37,411 INFO L226 Difference]: Without dead ends: 2095 [2020-10-26 22:32:37,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:37,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2020-10-26 22:32:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2093. [2020-10-26 22:32:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-10-26 22:32:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2347 transitions. [2020-10-26 22:32:37,476 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2347 transitions. Word has length 340 [2020-10-26 22:32:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:37,477 INFO L481 AbstractCegarLoop]: Abstraction has 2093 states and 2347 transitions. [2020-10-26 22:32:37,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:37,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2347 transitions. [2020-10-26 22:32:37,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-26 22:32:37,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:37,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:32:37,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:32:37,484 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:37,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:37,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1839709159, now seen corresponding path program 1 times [2020-10-26 22:32:37,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:37,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431319914] [2020-10-26 22:32:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:37,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:37,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-26 22:32:38,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 843 [2020-10-26 22:32:38,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-26 22:32:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 22:32:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:38,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:38,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:38,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:38,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:32:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:38,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:32:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:38,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:38,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:38,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-26 22:32:38,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:32:38,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-26 22:32:38,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431319914] [2020-10-26 22:32:38,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:38,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:38,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475945531] [2020-10-26 22:32:38,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:38,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:38,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:38,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:38,927 INFO L87 Difference]: Start difference. First operand 2093 states and 2347 transitions. Second operand 5 states. [2020-10-26 22:32:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:40,117 INFO L93 Difference]: Finished difference Result 4054 states and 4558 transitions. [2020-10-26 22:32:40,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:40,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 376 [2020-10-26 22:32:40,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:40,132 INFO L225 Difference]: With dead ends: 4054 [2020-10-26 22:32:40,132 INFO L226 Difference]: Without dead ends: 2093 [2020-10-26 22:32:40,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2020-10-26 22:32:40,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 2091. [2020-10-26 22:32:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2091 states. [2020-10-26 22:32:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2344 transitions. [2020-10-26 22:32:40,195 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2344 transitions. Word has length 376 [2020-10-26 22:32:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:40,196 INFO L481 AbstractCegarLoop]: Abstraction has 2091 states and 2344 transitions. [2020-10-26 22:32:40,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2344 transitions. [2020-10-26 22:32:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-26 22:32:40,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:32:40,203 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:32:40,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:32:40,204 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:32:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:32:40,204 INFO L82 PathProgramCache]: Analyzing trace with hash 674738671, now seen corresponding path program 1 times [2020-10-26 22:32:40,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:32:40,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082460280] [2020-10-26 22:32:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:32:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:40,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-26 22:32:41,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:32:41,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-26 22:32:41,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:32:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 334 [2020-10-26 22:32:41,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:32:41,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:41,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:32:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:41,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:32:41,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:32:41,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:32:41,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:41,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:41,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:32:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:32:41,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:32:41,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:32:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:41,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:32:41,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:41,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:32:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:32:41,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:32:41,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:32:41,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-26 22:32:41,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:32:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-26 22:32:41,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:32:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:32:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:32:41,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-26 22:32:41,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:32:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 180 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:32:42,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082460280] [2020-10-26 22:32:42,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:32:42,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:32:42,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593711316] [2020-10-26 22:32:42,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:32:42,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:32:42,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:32:42,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:32:42,163 INFO L87 Difference]: Start difference. First operand 2091 states and 2344 transitions. Second operand 5 states. [2020-10-26 22:32:43,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:32:43,763 INFO L93 Difference]: Finished difference Result 2826 states and 3245 transitions. [2020-10-26 22:32:43,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:32:43,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 387 [2020-10-26 22:32:43,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:32:43,764 INFO L225 Difference]: With dead ends: 2826 [2020-10-26 22:32:43,765 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:32:43,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:32:43,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:32:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:32:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:32:43,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:32:43,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 387 [2020-10-26 22:32:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:32:43,772 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:32:43,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:32:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:32:43,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:32:43,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:32:43,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:32:44,240 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 160 [2020-10-26 22:32:44,946 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 160 [2020-10-26 22:32:45,328 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 23 [2020-10-26 22:32:45,884 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 26 [2020-10-26 22:32:46,087 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 15 [2020-10-26 22:32:46,375 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 23 [2020-10-26 22:32:46,380 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:32:46,380 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:32:46,380 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:32:46,381 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:32:46,381 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:46,385 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|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:32:46,385 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:32:46,386 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:32:46,386 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:32:46,386 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:32:46,386 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:32:46,387 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:32:46,387 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:32:46,387 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:32:46,387 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:32:46,388 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,389 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:32:46,390 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:32:46,391 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:32:46,392 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,393 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:32:46,394 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:32:46,395 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,396 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L270 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: (and (not (= 9 |old(~a19~0)|)) (= 2 |old(~a10~0)|) (not (= 8 |old(~a19~0)|)) (not (<= 0 |old(~a1~0)|))) [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:32:46,397 INFO L274 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,398 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:32:46,399 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,400 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (<= 0 |old(~a1~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or .cse0 (not (= 8 |old(~a19~0)|))) (or .cse0 (= 2 |old(~a10~0)|)))) [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:32:46,401 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:32:46,402 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:32:46,403 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:32:46,404 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:32:46,405 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,406 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,407 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:32:46,407 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:32:46,407 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-26 22:32:46,407 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:32:46,407 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:32:46,407 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-26 22:32:46,407 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:46,407 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (<= 0 ~a1~0) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= ~a10~0 2)) (not (= 23 |old(~a1~0)|))) [2020-10-26 22:32:46,407 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:32:46,408 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:32:46,408 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (<= 0 ~a1~0) (not (= 9 |old(~a19~0)|)) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= ~a10~0 2)) (not (= 23 |old(~a1~0)|))) [2020-10-26 22:32:46,408 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:32:46,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:32:46 BoogieIcfgContainer [2020-10-26 22:32:46,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:32:46,432 INFO L168 Benchmark]: Toolchain (without parser) took 68471.77 ms. Allocated memory was 158.3 MB in the beginning and 870.3 MB in the end (delta: 712.0 MB). Free memory was 131.8 MB in the beginning and 364.5 MB in the end (delta: -232.7 MB). Peak memory consumption was 480.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:46,433 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 158.3 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:32:46,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.12 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 136.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:46,434 INFO L168 Benchmark]: Boogie Preprocessor took 134.20 ms. Allocated memory is still 158.3 MB. Free memory was 136.3 MB in the beginning and 131.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:46,434 INFO L168 Benchmark]: RCFGBuilder took 1748.14 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 114.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:46,437 INFO L168 Benchmark]: TraceAbstraction took 65699.88 ms. Allocated memory was 158.3 MB in the beginning and 870.3 MB in the end (delta: 712.0 MB). Free memory was 113.9 MB in the beginning and 364.5 MB in the end (delta: -250.6 MB). Peak memory consumption was 461.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:32:46,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 158.3 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 873.12 ms. Allocated memory is still 158.3 MB. Free memory was 131.2 MB in the beginning and 136.3 MB in the end (delta: -5.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 134.20 ms. Allocated memory is still 158.3 MB. Free memory was 136.3 MB in the beginning and 131.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1748.14 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 114.4 MB in the end (delta: 17.2 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 65699.88 ms. Allocated memory was 158.3 MB in the beginning and 870.3 MB in the end (delta: 712.0 MB). Free memory was 113.9 MB in the beginning and 364.5 MB in the end (delta: -250.6 MB). Peak memory consumption was 461.9 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: 584]: Loop Invariant Derived loop invariant: (((((a19 == 8 || 0 <= a1) || !(9 == \old(a19))) || a19 == 9) || !(0 == \old(a10))) || !(a10 == 2)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 62.9s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 391 SDtfs, 4847 SDslu, 499 SDs, 0 SdLazy, 12699 SolverSat, 1394 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 119 SyntacticMatches, 3 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2252occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 661 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 284 PreInvPairs, 338 NumberOfFragments, 224 HoareAnnotationTreeSize, 284 FomulaSimplifications, 300153 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 5869 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 31.7s InterpolantComputationTime, 3670 NumberOfCodeBlocks, 3670 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3656 ConstructedInterpolants, 0 QuantifiedInterpolants, 2594079 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 3228/3449 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...