/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/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:40:37,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:40:37,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:40:37,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:40:37,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:40:37,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:40:37,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:40:37,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:40:37,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:40:37,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:40:37,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:40:37,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:40:37,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:40:37,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:40:37,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:40:38,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:40:38,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:40:38,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:40:38,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:40:38,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:40:38,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:40:38,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:40:38,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:40:38,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:40:38,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:40:38,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:40:38,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:40:38,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:40:38,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:40:38,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:40:38,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:40:38,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:40:38,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:40:38,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:40:38,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:40:38,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:40:38,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:40:38,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:40:38,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:40:38,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:40:38,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:40:38,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:40:38,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:40:38,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:40:38,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:40:38,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:40:38,119 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:40:38,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:40:38,119 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:40:38,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:40:38,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:40:38,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:40:38,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:40:38,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:40:38,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:40:38,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:40:38,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:40:38,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:40:38,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:40:38,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:40:38,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:40:38,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:40:38,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:40:38,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:40:38,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:40:38,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:40:38,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:40:38,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:40:38,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:40:38,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:40:38,560 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:40:38,560 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:40:38,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-10-26 20:40:38,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4954945f/1d34422320f646629d1772c931d847c8/FLAG7d4cce23b [2020-10-26 20:40:39,439 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:40:39,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-10-26 20:40:39,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4954945f/1d34422320f646629d1772c931d847c8/FLAG7d4cce23b [2020-10-26 20:40:39,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4954945f/1d34422320f646629d1772c931d847c8 [2020-10-26 20:40:39,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:40:39,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:40:39,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:40:39,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:40:39,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:40:39,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:40:39" (1/1) ... [2020-10-26 20:40:39,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62043c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:39, skipping insertion in model container [2020-10-26 20:40:39,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:40:39" (1/1) ... [2020-10-26 20:40:39,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:40:39,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:40:40,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:40:40,312 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:40:40,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:40:40,459 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:40:40,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40 WrapperNode [2020-10-26 20:40:40,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:40:40,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:40:40,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:40:40,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:40:40,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... [2020-10-26 20:40:40,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:40:40,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:40:40,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:40:40,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:40:40,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:40:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:40:40,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:40:40,702 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:40:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:40:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:40:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:40:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:40:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:40:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:40:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:40:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:40:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:40:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:40:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:40:40,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:40:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:40:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:40:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:40:40,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:40:42,150 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:40:42,151 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:40:42,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:42 BoogieIcfgContainer [2020-10-26 20:40:42,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:40:42,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:40:42,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:40:42,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:40:42,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:40:39" (1/3) ... [2020-10-26 20:40:42,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06e50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:42, skipping insertion in model container [2020-10-26 20:40:42,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:40:40" (2/3) ... [2020-10-26 20:40:42,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c06e50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:40:42, skipping insertion in model container [2020-10-26 20:40:42,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:40:42" (3/3) ... [2020-10-26 20:40:42,191 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-10-26 20:40:42,204 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:40:42,209 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:40:42,223 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:40:42,254 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:40:42,254 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:40:42,255 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:40:42,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:40:42,255 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:40:42,255 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:40:42,255 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:40:42,255 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:40:42,280 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-26 20:40:42,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-26 20:40:42,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:42,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:42,295 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:42,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:42,306 INFO L82 PathProgramCache]: Analyzing trace with hash -368636091, now seen corresponding path program 1 times [2020-10-26 20:40:42,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:42,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901785798] [2020-10-26 20:40:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:42,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:44,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:44,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 20:40:44,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1910 [2020-10-26 20:40:44,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:44,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:40:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-26 20:40:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:40:44,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:44,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:44,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:44,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:40:44,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:44,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:40:44,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901785798] [2020-10-26 20:40:44,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:40:44,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:40:44,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058886169] [2020-10-26 20:40:44,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:40:44,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:44,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:40:44,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:40:44,829 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-26 20:40:46,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:46,815 INFO L93 Difference]: Finished difference Result 667 states and 1119 transitions. [2020-10-26 20:40:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:40:46,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-10-26 20:40:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:46,838 INFO L225 Difference]: With dead ends: 667 [2020-10-26 20:40:46,838 INFO L226 Difference]: Without dead ends: 342 [2020-10-26 20:40:46,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:40:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-26 20:40:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2020-10-26 20:40:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-26 20:40:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 489 transitions. [2020-10-26 20:40:46,950 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 489 transitions. Word has length 112 [2020-10-26 20:40:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:46,951 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 489 transitions. [2020-10-26 20:40:46,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:40:46,952 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 489 transitions. [2020-10-26 20:40:46,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-26 20:40:46,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:46,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:46,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:40:46,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:46,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1912144249, now seen corresponding path program 1 times [2020-10-26 20:40:46,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:46,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147506568] [2020-10-26 20:40:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:47,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:47,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:47,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:47,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:48,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:48,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:40:48,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:40:48,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1553 [2020-10-26 20:40:48,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:48,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:40:48,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:48,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:40:48,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:48,752 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:48,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:48,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:48,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:48,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:48,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:40:48,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:48,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:48,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:48,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:48,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:40:48,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:48,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:48,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:48,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:48,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:48,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:40:48,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:48,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:48,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:48,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:40:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:40:48,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147506568] [2020-10-26 20:40:48,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:40:48,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:40:48,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991856868] [2020-10-26 20:40:48,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:40:48,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:48,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:40:48,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:48,920 INFO L87 Difference]: Start difference. First operand 338 states and 489 transitions. Second operand 7 states. [2020-10-26 20:40:49,968 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-26 20:40:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:51,248 INFO L93 Difference]: Finished difference Result 1004 states and 1485 transitions. [2020-10-26 20:40:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:40:51,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2020-10-26 20:40:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:51,256 INFO L225 Difference]: With dead ends: 1004 [2020-10-26 20:40:51,257 INFO L226 Difference]: Without dead ends: 672 [2020-10-26 20:40:51,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:40:51,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-10-26 20:40:51,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 642. [2020-10-26 20:40:51,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-10-26 20:40:51,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 826 transitions. [2020-10-26 20:40:51,311 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 826 transitions. Word has length 120 [2020-10-26 20:40:51,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:51,312 INFO L481 AbstractCegarLoop]: Abstraction has 642 states and 826 transitions. [2020-10-26 20:40:51,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:40:51,312 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 826 transitions. [2020-10-26 20:40:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-26 20:40:51,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:51,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:51,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:40:51,318 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:51,319 INFO L82 PathProgramCache]: Analyzing trace with hash 518699160, now seen corresponding path program 1 times [2020-10-26 20:40:51,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:51,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746693468] [2020-10-26 20:40:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:51,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:51,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:51,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:52,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:52,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:52,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-26 20:40:52,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:40:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1525 [2020-10-26 20:40:52,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:40:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-26 20:40:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:53,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:53,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:53,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:53,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:53,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:40:53,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:53,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:53,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:53,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:53,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:53,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:53,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:40:53,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:53,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:40:53,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:53,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:40:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:53,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:53,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:53,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:40:53,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:40:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:40:53,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:53,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:40:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:53,199 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:40:53,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746693468] [2020-10-26 20:40:53,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:53,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:40:53,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128347906] [2020-10-26 20:40:53,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:40:53,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:53,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:40:53,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:40:53,202 INFO L87 Difference]: Start difference. First operand 642 states and 826 transitions. Second operand 6 states. [2020-10-26 20:40:54,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:54,775 INFO L93 Difference]: Finished difference Result 1894 states and 2489 transitions. [2020-10-26 20:40:54,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:40:54,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-10-26 20:40:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:54,795 INFO L225 Difference]: With dead ends: 1894 [2020-10-26 20:40:54,795 INFO L226 Difference]: Without dead ends: 1258 [2020-10-26 20:40:54,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:40:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2020-10-26 20:40:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1246. [2020-10-26 20:40:54,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-10-26 20:40:54,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1563 transitions. [2020-10-26 20:40:54,876 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1563 transitions. Word has length 129 [2020-10-26 20:40:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:54,879 INFO L481 AbstractCegarLoop]: Abstraction has 1246 states and 1563 transitions. [2020-10-26 20:40:54,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:40:54,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1563 transitions. [2020-10-26 20:40:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-26 20:40:54,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:54,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:54,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:40:54,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:54,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1082165067, now seen corresponding path program 1 times [2020-10-26 20:40:54,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:54,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253105316] [2020-10-26 20:40:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:54,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:55,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:56,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:57,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:57,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-26 20:40:57,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:40:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-26 20:40:57,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:40:57,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:40:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:40:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:57,224 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 20:40:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:40:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:57,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:57,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:57,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:40:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:40:57,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:40:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:40:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:40:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:57,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:40:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:57,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:57,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:57,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:40:57,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:57,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:40:57,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:57,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:40:57,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:40:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:57,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:40:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-26 20:40:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:40:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 20:40:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:40:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:40:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:40:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:40:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:40:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:40:57,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253105316] [2020-10-26 20:40:57,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:40:57,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:40:57,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374844974] [2020-10-26 20:40:57,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:40:57,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:40:57,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:40:57,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:40:57,442 INFO L87 Difference]: Start difference. First operand 1246 states and 1563 transitions. Second operand 8 states. [2020-10-26 20:40:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:40:59,645 INFO L93 Difference]: Finished difference Result 3657 states and 4797 transitions. [2020-10-26 20:40:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:40:59,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2020-10-26 20:40:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:40:59,665 INFO L225 Difference]: With dead ends: 3657 [2020-10-26 20:40:59,665 INFO L226 Difference]: Without dead ends: 2417 [2020-10-26 20:40:59,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:40:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2020-10-26 20:40:59,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2348. [2020-10-26 20:40:59,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2348 states. [2020-10-26 20:40:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 2958 transitions. [2020-10-26 20:40:59,792 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 2958 transitions. Word has length 143 [2020-10-26 20:40:59,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:40:59,793 INFO L481 AbstractCegarLoop]: Abstraction has 2348 states and 2958 transitions. [2020-10-26 20:40:59,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:40:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 2958 transitions. [2020-10-26 20:40:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-26 20:40:59,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:40:59,805 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:40:59,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:40:59,806 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:40:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:40:59,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1135972294, now seen corresponding path program 1 times [2020-10-26 20:40:59,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:40:59,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078801448] [2020-10-26 20:40:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:40:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:40:59,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:40:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:00,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:01,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:03,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-26 20:41:03,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:41:03,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3244 [2020-10-26 20:41:03,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 20:41:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:41:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-26 20:41:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:03,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:03,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:03,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:41:03,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:41:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:03,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:03,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:41:03,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:03,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:41:03,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:03,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:41:03,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:03,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:41:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:03,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:41:03,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:03,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 20:41:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:03,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:03,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:41:03,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 43 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-26 20:41:03,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078801448] [2020-10-26 20:41:03,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:03,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:03,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120279918] [2020-10-26 20:41:03,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:41:03,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:03,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:41:03,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:41:03,524 INFO L87 Difference]: Start difference. First operand 2348 states and 2958 transitions. Second operand 8 states. [2020-10-26 20:41:04,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:04,687 INFO L93 Difference]: Finished difference Result 4703 states and 6092 transitions. [2020-10-26 20:41:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:41:04,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-10-26 20:41:04,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:04,704 INFO L225 Difference]: With dead ends: 4703 [2020-10-26 20:41:04,704 INFO L226 Difference]: Without dead ends: 2361 [2020-10-26 20:41:04,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-26 20:41:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2020-10-26 20:41:04,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 2317. [2020-10-26 20:41:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2317 states. [2020-10-26 20:41:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2827 transitions. [2020-10-26 20:41:04,793 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2827 transitions. Word has length 162 [2020-10-26 20:41:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:04,794 INFO L481 AbstractCegarLoop]: Abstraction has 2317 states and 2827 transitions. [2020-10-26 20:41:04,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:41:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2827 transitions. [2020-10-26 20:41:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-26 20:41:04,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:04,802 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:04,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:41:04,802 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:04,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1431828141, now seen corresponding path program 1 times [2020-10-26 20:41:04,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:04,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123066902] [2020-10-26 20:41:04,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:04,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:04,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:07,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:09,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-26 20:41:09,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:41:09,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:09,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:09,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:09,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:09,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:09,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:09,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:41:09,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:09,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:09,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:09,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:09,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-26 20:41:10,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:41:10,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:10,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-26 20:41:10,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-26 20:41:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:10,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:41:10,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:10,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:10,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:41:10,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-26 20:41:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:10,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:10,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:10,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:41:10,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:10,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 53 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-26 20:41:10,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123066902] [2020-10-26 20:41:10,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:10,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:10,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213971044] [2020-10-26 20:41:10,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:10,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:10,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:10,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:10,181 INFO L87 Difference]: Start difference. First operand 2317 states and 2827 transitions. Second operand 7 states. [2020-10-26 20:41:11,144 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-26 20:41:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:12,517 INFO L93 Difference]: Finished difference Result 5333 states and 6831 transitions. [2020-10-26 20:41:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:41:12,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-10-26 20:41:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:12,536 INFO L225 Difference]: With dead ends: 5333 [2020-10-26 20:41:12,536 INFO L226 Difference]: Without dead ends: 3166 [2020-10-26 20:41:12,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:41:12,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2020-10-26 20:41:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3085. [2020-10-26 20:41:12,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3085 states. [2020-10-26 20:41:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 3663 transitions. [2020-10-26 20:41:12,651 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 3663 transitions. Word has length 165 [2020-10-26 20:41:12,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:12,651 INFO L481 AbstractCegarLoop]: Abstraction has 3085 states and 3663 transitions. [2020-10-26 20:41:12,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 3663 transitions. [2020-10-26 20:41:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-26 20:41:12,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:12,661 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:12,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:41:12,661 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:12,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:12,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1509463013, now seen corresponding path program 1 times [2020-10-26 20:41:12,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:12,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760794179] [2020-10-26 20:41:12,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:12,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:12,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:12,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:16,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:17,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-26 20:41:17,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:41:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:17,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:17,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:17,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:17,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:17,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:17,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:17,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:17,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:17,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:41:17,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:17,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:41:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:17,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:17,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:41:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:41:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:17,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:17,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:17,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:17,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:17,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:41:17,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:17,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:17,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:41:17,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:17,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:41:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:17,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:41:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-26 20:41:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 57 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-26 20:41:17,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760794179] [2020-10-26 20:41:17,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:17,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:17,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235751122] [2020-10-26 20:41:17,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:17,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:17,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:17,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:17,991 INFO L87 Difference]: Start difference. First operand 3085 states and 3663 transitions. Second operand 7 states. [2020-10-26 20:41:20,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:20,003 INFO L93 Difference]: Finished difference Result 6692 states and 8242 transitions. [2020-10-26 20:41:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:41:20,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-10-26 20:41:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:20,025 INFO L225 Difference]: With dead ends: 6692 [2020-10-26 20:41:20,025 INFO L226 Difference]: Without dead ends: 3757 [2020-10-26 20:41:20,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2020-10-26 20:41:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3699. [2020-10-26 20:41:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3699 states. [2020-10-26 20:41:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3699 states to 3699 states and 4372 transitions. [2020-10-26 20:41:20,160 INFO L78 Accepts]: Start accepts. Automaton has 3699 states and 4372 transitions. Word has length 169 [2020-10-26 20:41:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:20,161 INFO L481 AbstractCegarLoop]: Abstraction has 3699 states and 4372 transitions. [2020-10-26 20:41:20,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3699 states and 4372 transitions. [2020-10-26 20:41:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-26 20:41:20,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:20,173 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:20,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:41:20,173 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:20,176 INFO L82 PathProgramCache]: Analyzing trace with hash 211676487, now seen corresponding path program 1 times [2020-10-26 20:41:20,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:20,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351969587] [2020-10-26 20:41:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:20,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:21,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:22,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1841 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:41:22,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:22,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:22,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:22,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:22,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:22,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:41:22,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:41:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:22,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:41:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:22,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:22,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:41:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:22,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-26 20:41:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:22,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:22,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:22,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-26 20:41:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-26 20:41:22,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351969587] [2020-10-26 20:41:22,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:22,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:22,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183995080] [2020-10-26 20:41:22,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:22,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:22,371 INFO L87 Difference]: Start difference. First operand 3699 states and 4372 transitions. Second operand 7 states. [2020-10-26 20:41:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:24,890 INFO L93 Difference]: Finished difference Result 4899 states and 5829 transitions. [2020-10-26 20:41:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:41:24,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-10-26 20:41:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:24,904 INFO L225 Difference]: With dead ends: 4899 [2020-10-26 20:41:24,905 INFO L226 Difference]: Without dead ends: 1977 [2020-10-26 20:41:24,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2020-10-26 20:41:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1972. [2020-10-26 20:41:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1972 states. [2020-10-26 20:41:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2212 transitions. [2020-10-26 20:41:24,975 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2212 transitions. Word has length 190 [2020-10-26 20:41:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:24,976 INFO L481 AbstractCegarLoop]: Abstraction has 1972 states and 2212 transitions. [2020-10-26 20:41:24,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2212 transitions. [2020-10-26 20:41:24,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-26 20:41:24,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:24,983 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:24,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:41:24,984 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:24,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:24,984 INFO L82 PathProgramCache]: Analyzing trace with hash -160950892, now seen corresponding path program 1 times [2020-10-26 20:41:24,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:24,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834651379] [2020-10-26 20:41:24,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:25,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:25,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:25,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:27,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3587 [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-26 20:41:28,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:41:28,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:28,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:28,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:28,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:28,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:28,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:28,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:41:28,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:28,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:28,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:28,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-26 20:41:28,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:41:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:28,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:28,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:28,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-26 20:41:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 20:41:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:28,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-26 20:41:28,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:28,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 126 proven. 29 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:41:28,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834651379] [2020-10-26 20:41:28,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:28,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:41:28,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980680971] [2020-10-26 20:41:28,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:41:28,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:28,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:41:28,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:41:28,930 INFO L87 Difference]: Start difference. First operand 1972 states and 2212 transitions. Second operand 7 states. [2020-10-26 20:41:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:30,660 INFO L93 Difference]: Finished difference Result 4097 states and 4677 transitions. [2020-10-26 20:41:30,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:41:30,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-26 20:41:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:30,672 INFO L225 Difference]: With dead ends: 4097 [2020-10-26 20:41:30,672 INFO L226 Difference]: Without dead ends: 2275 [2020-10-26 20:41:30,677 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:41:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2020-10-26 20:41:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2270. [2020-10-26 20:41:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-10-26 20:41:30,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2558 transitions. [2020-10-26 20:41:30,794 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2558 transitions. Word has length 212 [2020-10-26 20:41:30,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:30,794 INFO L481 AbstractCegarLoop]: Abstraction has 2270 states and 2558 transitions. [2020-10-26 20:41:30,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:41:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2558 transitions. [2020-10-26 20:41:30,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-26 20:41:30,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:41:30,802 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:41:30,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:41:30,803 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:41:30,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:41:30,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1472154543, now seen corresponding path program 1 times [2020-10-26 20:41:30,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:41:30,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003435469] [2020-10-26 20:41:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:41:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:30,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:31,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:31,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:31,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-26 20:41:31,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:41:31,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-26 20:41:31,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:41:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-26 20:41:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 20:41:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:41:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:31,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:31,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:41:31,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:31,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:41:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:31,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:31,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:31,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-26 20:41:31,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:31,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:41:31,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:41:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:31,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:41:31,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:31,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-26 20:41:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:41:31,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:41:31,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:41:31,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 20:41:31,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-26 20:41:31,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:41:31,544 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:41:31,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003435469] [2020-10-26 20:41:31,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:41:31,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:41:31,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723157072] [2020-10-26 20:41:31,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:41:31,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:41:31,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:41:31,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:41:31,549 INFO L87 Difference]: Start difference. First operand 2270 states and 2558 transitions. Second operand 5 states. [2020-10-26 20:41:32,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:41:32,834 INFO L93 Difference]: Finished difference Result 4533 states and 5143 transitions. [2020-10-26 20:41:32,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:41:32,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2020-10-26 20:41:32,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:41:32,835 INFO L225 Difference]: With dead ends: 4533 [2020-10-26 20:41:32,835 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:41:32,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 20:41:32,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:41:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:41:32,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:41:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:41:32,844 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 218 [2020-10-26 20:41:32,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:41:32,844 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:41:32,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:41:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:41:32,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:41:32,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:41:32,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:41:33,382 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 143 [2020-10-26 20:41:33,592 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 143 [2020-10-26 20:41:33,710 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 31 [2020-10-26 20:41:34,661 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 55 [2020-10-26 20:41:34,994 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 45 [2020-10-26 20:41:35,196 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-10-26 20:41:35,456 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 45 [2020-10-26 20:41:35,460 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:41:35,461 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:41:35,461 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:41:35,461 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:41:35,461 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|)) [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-26 20:41:35,463 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,464 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-26 20:41:35,465 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-26 20:41:35,466 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-26 20:41:35,466 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-26 20:41:35,466 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-26 20:41:35,467 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-26 20:41:35,467 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-26 20:41:35,467 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-26 20:41:35,467 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,468 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-26 20:41:35,470 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-26 20:41:35,471 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,473 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:35,474 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-26 20:41:35,474 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-26 20:41:35,474 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-26 20:41:35,474 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-26 20:41:35,474 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,475 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-26 20:41:35,476 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-26 20:41:35,477 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-26 20:41:35,478 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-26 20:41:35,478 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-26 20:41:35,478 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-26 20:41:35,479 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:35,480 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-26 20:41:35,481 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-26 20:41:35,482 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,483 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-26 20:41:35,484 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-26 20:41:35,485 INFO L270 CegarLoopResult]: At program point L489(line 489) the Hoare annotation is: (let ((.cse3 (not (= 7 |old(~a28~0)|))) (.cse2 (not (= 0 |old(~a25~0)|))) (.cse4 (not (= |old(~a11~0)| 1))) (.cse6 (not (= |old(~a19~0)| 1))) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse1 (not (= 0 |old(~a11~0)|))) (.cse5 (not (<= 9 |old(~a28~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or (not (= 7 |old(~a17~0)|)) .cse4 .cse5) (or .cse0 .cse1 .cse3) (or .cse0 (not (= 10 |old(~a28~0)|)) .cse2 .cse4) (or .cse0 .cse6 .cse4) (or .cse0 .cse6 .cse1) (or .cse0 .cse1 .cse5))) [2020-10-26 20:41:35,485 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 31 600) the Hoare annotation is: (let ((.cse12 (= ~a19~0 |old(~a19~0)|)) (.cse14 (= ~a28~0 |old(~a28~0)|)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a11~0 |old(~a11~0)|)) (.cse11 (= ~a25~0 |old(~a25~0)|))) (let ((.cse13 (not (= 0 |old(~a25~0)|))) (.cse4 (not (= |old(~a19~0)| 1))) (.cse5 (and .cse14 .cse9 .cse10 (= ~a19~0 1) .cse11)) (.cse6 (and .cse14 .cse9 .cse10 .cse11 .cse12)) (.cse1 (not (= 0 |old(~a11~0)|))) (.cse8 (not (<= 9 |old(~a28~0)|))) (.cse0 (not (<= |old(~a17~0)| 8))) (.cse2 (and .cse9 .cse10 .cse11 (= 7 ~a28~0) .cse12)) (.cse3 (not (= 7 |old(~a28~0)|))) (.cse7 (not (= |old(~a11~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse5) (or (not (= 7 |old(~a17~0)|)) .cse6 .cse7 .cse8) (or .cse0 (not (= 10 |old(~a28~0)|)) (and .cse9 .cse10 .cse11 .cse12 (= ~a28~0 10)) .cse13 .cse7) (or .cse0 .cse6 .cse1 .cse13) (or .cse0 .cse4 .cse5 .cse7) (or .cse0 .cse6 .cse1 .cse8) (or .cse0 .cse2 .cse3 .cse7)))) [2020-10-26 20:41:35,485 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L489-1(line 489) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,486 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-26 20:41:35,487 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-26 20:41:35,488 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,489 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:41:35,490 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (= 7 ~a28~0) (= ~a11~0 0) (<= ~a17~0 8)) [2020-10-26 20:41:35,490 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:41:35,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:41:35,491 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse3 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a17~0 8)) (.cse5 (= ~a11~0 1)) (.cse7 (= 7 ~a28~0)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a19~0 1)) (.cse2 (= ~a11~0 0))) (or (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse5 .cse6) (and .cse7 .cse6 .cse5) (and (= 7 ~a17~0) .cse3 .cse5) (not (= 0 |old(~a11~0)|)) (and .cse1 .cse6 .cse5 (= ~a28~0 10)) (and .cse0 .cse7 .cse2) (and .cse0 .cse4 .cse2) (not (= 7 |old(~a28~0)|)))) [2020-10-26 20:41:35,491 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 602 619) the Hoare annotation is: (or (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a11~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= 7 ~a28~0)) (not (= 0 |old(~a25~0)|)) (not (= 7 |old(~a28~0)|))) [2020-10-26 20:41:35,491 INFO L274 CegarLoopResult]: For program point L608-3(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:35,491 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 602 619) no Hoare annotation was computed. [2020-10-26 20:41:35,491 INFO L270 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (let ((.cse3 (<= 9 ~a28~0)) (.cse1 (= ~a25~0 0)) (.cse6 (<= ~a17~0 8)) (.cse5 (= ~a11~0 1)) (.cse7 (= 7 ~a28~0)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a19~0 1)) (.cse2 (= ~a11~0 0))) (or (not (= |old(~a19~0)| 1)) (not (= 0 |old(~a25~0)|)) (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (not (<= |old(~a17~0)| 8)) (and .cse4 .cse5 .cse6) (and .cse7 .cse6 .cse5) (and (= 7 ~a17~0) .cse3 .cse5) (not (= 0 |old(~a11~0)|)) (and .cse1 .cse6 .cse5 (= ~a28~0 10)) (and .cse0 .cse7 .cse2) (and .cse0 .cse4 .cse2) (not (= 7 |old(~a28~0)|)))) [2020-10-26 20:41:35,491 INFO L274 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-10-26 20:41:35,492 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-26 20:41:35,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:41:35 BoogieIcfgContainer [2020-10-26 20:41:35,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:41:35,534 INFO L168 Benchmark]: Toolchain (without parser) took 55842.37 ms. Allocated memory was 164.6 MB in the beginning and 955.3 MB in the end (delta: 790.6 MB). Free memory was 139.2 MB in the beginning and 516.3 MB in the end (delta: -377.1 MB). Peak memory consumption was 569.6 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:35,535 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:41:35,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.56 ms. Allocated memory is still 164.6 MB. Free memory was 138.6 MB in the beginning and 112.8 MB in the end (delta: 25.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:35,537 INFO L168 Benchmark]: Boogie Preprocessor took 123.65 ms. Allocated memory is still 164.6 MB. Free memory was 112.8 MB in the beginning and 107.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:35,538 INFO L168 Benchmark]: RCFGBuilder took 1564.13 ms. Allocated memory is still 164.6 MB. Free memory was 107.9 MB in the beginning and 53.9 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:35,542 INFO L168 Benchmark]: TraceAbstraction took 53350.41 ms. Allocated memory was 164.6 MB in the beginning and 955.3 MB in the end (delta: 790.6 MB). Free memory was 143.1 MB in the beginning and 516.3 MB in the end (delta: -373.2 MB). Peak memory consumption was 572.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:41:35,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 84.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 763.56 ms. Allocated memory is still 164.6 MB. Free memory was 138.6 MB in the beginning and 112.8 MB in the end (delta: 25.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 123.65 ms. Allocated memory is still 164.6 MB. Free memory was 112.8 MB in the beginning and 107.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1564.13 ms. Allocated memory is still 164.6 MB. Free memory was 107.9 MB in the beginning and 53.9 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53350.41 ms. Allocated memory was 164.6 MB in the beginning and 955.3 MB in the end (delta: 790.6 MB). Free memory was 143.1 MB in the beginning and 516.3 MB in the end (delta: -373.2 MB). Peak memory consumption was 572.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((((((((!(\old(a19) == 1) || !(0 == \old(a25))) || ((a17 == \old(a17) && a25 == 0) && a11 == 0)) || ((a17 == \old(a17) && 9 <= a28) && a11 == 0)) || !(\old(a17) <= 8)) || ((a19 == 1 && a11 == 1) && a17 <= 8)) || ((7 == a28 && a17 <= 8) && a11 == 1)) || ((7 == a17 && 9 <= a28) && a11 == 1)) || !(0 == \old(a11))) || (((a25 == 0 && a17 <= 8) && a11 == 1) && a28 == 10)) || ((a17 == \old(a17) && 7 == a28) && a11 == 0)) || ((a17 == \old(a17) && a19 == 1) && a11 == 0)) || !(7 == \old(a28)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 50.5s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 351 SDtfs, 4278 SDslu, 469 SDs, 0 SdLazy, 8702 SolverSat, 1405 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3699occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 308 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 264 PreInvPairs, 310 NumberOfFragments, 691 HoareAnnotationTreeSize, 264 FomulaSimplifications, 18012 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3675 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 29.2s InterpolantComputationTime, 1620 NumberOfCodeBlocks, 1620 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1610 ConstructedInterpolants, 0 QuantifiedInterpolants, 643828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 651/708 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...