/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:33:50,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:33:50,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:33:50,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:33:50,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:33:50,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:33:50,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:33:50,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:33:50,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:33:50,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:33:50,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:33:50,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:33:50,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:33:50,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:33:50,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:33:50,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:33:50,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:33:50,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:33:50,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:33:50,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:33:50,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:33:50,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:33:50,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:33:50,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:33:50,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:33:50,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:33:50,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:33:50,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:33:50,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:33:50,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:33:50,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:33:50,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:33:50,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:33:50,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:33:50,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:33:50,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:33:50,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:33:50,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:33:50,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:33:50,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:33:50,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:33:50,392 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 20:33:50,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:33:50,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:33:50,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:33:50,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:33:50,445 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:33:50,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:33:50,445 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:33:50,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:33:50,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:33:50,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:33:50,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:33:50,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:33:50,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:33:50,447 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:33:50,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:33:50,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:33:50,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:33:50,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:33:50,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:33:50,448 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:33:50,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:33:50,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:33:50,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:33:50,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:33:50,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:33:50,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:33:50,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:33:50,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:33:50,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:33:50,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:33:50,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:33:50,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:33:50,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:33:50,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:33:50,973 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:33:50,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-26 20:33:51,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820ac7b70/a35c8320cd71482c900d173c0f62cfdf/FLAGd60cc86f0 [2020-10-26 20:33:51,864 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:33:51,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label30.c [2020-10-26 20:33:51,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820ac7b70/a35c8320cd71482c900d173c0f62cfdf/FLAGd60cc86f0 [2020-10-26 20:33:52,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/820ac7b70/a35c8320cd71482c900d173c0f62cfdf [2020-10-26 20:33:52,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:33:52,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:33:52,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:52,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:33:52,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:33:52,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca2628f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52, skipping insertion in model container [2020-10-26 20:33:52,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:33:52,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:33:52,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:52,706 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:33:52,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:33:52,825 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:33:52,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52 WrapperNode [2020-10-26 20:33:52,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:33:52,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:33:52,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:33:52,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:33:52,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (1/1) ... [2020-10-26 20:33:52,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:33:52,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:33:52,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:33:52,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:33:52,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (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 20:33:53,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:33:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:33:53,075 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:33:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:33:53,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:33:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:33:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:33:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:33:53,077 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:33:53,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:33:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:33:53,079 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:33:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:33:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:33:53,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:33:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:33:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:33:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:33:53,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:33:54,383 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:33:54,384 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:33:54,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:54 BoogieIcfgContainer [2020-10-26 20:33:54,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:33:54,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:33:54,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:33:54,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:33:54,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:33:52" (1/3) ... [2020-10-26 20:33:54,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec8335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:54, skipping insertion in model container [2020-10-26 20:33:54,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:33:52" (2/3) ... [2020-10-26 20:33:54,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ec8335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:33:54, skipping insertion in model container [2020-10-26 20:33:54,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:33:54" (3/3) ... [2020-10-26 20:33:54,396 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label30.c [2020-10-26 20:33:54,408 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:33:54,414 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:33:54,428 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:33:54,458 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:33:54,458 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:33:54,458 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:33:54,458 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:33:54,459 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:33:54,459 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:33:54,459 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:33:54,459 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:33:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:33:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:33:54,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:54,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:54,504 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:54,511 INFO L82 PathProgramCache]: Analyzing trace with hash -202417503, now seen corresponding path program 1 times [2020-10-26 20:33:54,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:54,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941730575] [2020-10-26 20:33:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:54,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:57,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:57,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 20:33:57,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2281 [2020-10-26 20:33:57,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:33:57,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:33:57,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:33:57,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:57,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:57,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:57,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:57,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:57,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:57,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:57,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:57,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:57,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:58,124 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 20:33:58,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [941730575] [2020-10-26 20:33:58,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:33:58,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:33:58,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894321236] [2020-10-26 20:33:58,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:33:58,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:58,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:33:58,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:58,164 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:33:58,400 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:33:58,599 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:33:58,786 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-26 20:33:59,000 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-26 20:33:59,449 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-26 20:33:59,892 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-26 20:34:00,589 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2020-10-26 20:34:01,423 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2020-10-26 20:34:01,931 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 114 [2020-10-26 20:34:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:03,347 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:34:03,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:03,351 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-10-26 20:34:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:03,366 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:34:03,366 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:34:03,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:34:03,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:34:03,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:34:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:34:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:34:03,498 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 132 [2020-10-26 20:34:03,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:03,499 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:34:03,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:34:03,499 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:34:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-26 20:34:03,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:03,516 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:03,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:34:03,518 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:03,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:03,521 INFO L82 PathProgramCache]: Analyzing trace with hash 725386943, now seen corresponding path program 1 times [2020-10-26 20:34:03,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:03,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12495547] [2020-10-26 20:34:03,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:03,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:04,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:05,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:05,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-26 20:34:05,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:05,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2107 [2020-10-26 20:34:05,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:05,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 20:34:05,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:34:05,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:05,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:05,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:05,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:05,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:05,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:05,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:05,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:05,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:05,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:05,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:06,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:06,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:06,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:06,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:06,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:34:06,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:06,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:06,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:06,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:06,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:34:06,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12495547] [2020-10-26 20:34:06,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:06,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:06,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127730136] [2020-10-26 20:34:06,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:06,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:06,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:06,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:06,080 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:34:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:07,595 INFO L93 Difference]: Finished difference Result 491 states and 703 transitions. [2020-10-26 20:34:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:07,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2020-10-26 20:34:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:07,601 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:34:07,601 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:34:07,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:34:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:34:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:34:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-26 20:34:07,632 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 140 [2020-10-26 20:34:07,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:07,633 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-26 20:34:07,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:07,634 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-26 20:34:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-26 20:34:07,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:07,636 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:07,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:34:07,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:07,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:07,637 INFO L82 PathProgramCache]: Analyzing trace with hash -532720610, now seen corresponding path program 1 times [2020-10-26 20:34:07,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:07,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395269949] [2020-10-26 20:34:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:07,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:08,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-26 20:34:08,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:08,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:08,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:08,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:08,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:08,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:08,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:08,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:08,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:34:08,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:34:08,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395269949] [2020-10-26 20:34:08,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:08,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:34:08,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640096310] [2020-10-26 20:34:08,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:08,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:08,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:08,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:08,969 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-26 20:34:10,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:10,385 INFO L93 Difference]: Finished difference Result 908 states and 1277 transitions. [2020-10-26 20:34:10,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:10,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-10-26 20:34:10,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:10,392 INFO L225 Difference]: With dead ends: 908 [2020-10-26 20:34:10,392 INFO L226 Difference]: Without dead ends: 629 [2020-10-26 20:34:10,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 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 20:34:10,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-26 20:34:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 625. [2020-10-26 20:34:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-26 20:34:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 825 transitions. [2020-10-26 20:34:10,430 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 825 transitions. Word has length 143 [2020-10-26 20:34:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:10,431 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 825 transitions. [2020-10-26 20:34:10,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 825 transitions. [2020-10-26 20:34:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-26 20:34:10,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:10,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:10,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:34:10,435 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1307423548, now seen corresponding path program 1 times [2020-10-26 20:34:10,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:10,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461227575] [2020-10-26 20:34:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:10,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:10,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:12,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:13,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2744 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-26 20:34:13,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:13,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:13,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:13,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:13,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:13,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:34:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:13,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:13,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:13,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:13,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:34:13,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:13,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:34:13,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461227575] [2020-10-26 20:34:13,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:13,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:34:13,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274833674] [2020-10-26 20:34:13,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:34:13,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:13,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:34:13,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:34:13,528 INFO L87 Difference]: Start difference. First operand 625 states and 825 transitions. Second operand 6 states. [2020-10-26 20:34:13,806 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:34:15,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:15,303 INFO L93 Difference]: Finished difference Result 1760 states and 2401 transitions. [2020-10-26 20:34:15,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:15,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-10-26 20:34:15,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:15,312 INFO L225 Difference]: With dead ends: 1760 [2020-10-26 20:34:15,312 INFO L226 Difference]: Without dead ends: 1201 [2020-10-26 20:34:15,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:15,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2020-10-26 20:34:15,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 915. [2020-10-26 20:34:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2020-10-26 20:34:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1165 transitions. [2020-10-26 20:34:15,361 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1165 transitions. Word has length 151 [2020-10-26 20:34:15,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:15,361 INFO L481 AbstractCegarLoop]: Abstraction has 915 states and 1165 transitions. [2020-10-26 20:34:15,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:34:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1165 transitions. [2020-10-26 20:34:15,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-26 20:34:15,365 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:15,366 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:15,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:34:15,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash 2012667108, now seen corresponding path program 1 times [2020-10-26 20:34:15,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:15,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537360830] [2020-10-26 20:34:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:16,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-26 20:34:18,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2800 [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:34:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:18,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:18,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:18,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:18,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:18,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:18,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:18,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:34:18,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:18,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:18,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:34:18,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:18,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:34:18,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:18,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:18,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:18,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:18,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:34:18,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537360830] [2020-10-26 20:34:18,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:18,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:18,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924369715] [2020-10-26 20:34:18,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:18,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:18,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:18,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:18,758 INFO L87 Difference]: Start difference. First operand 915 states and 1165 transitions. Second operand 8 states. [2020-10-26 20:34:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:20,473 INFO L93 Difference]: Finished difference Result 1911 states and 2442 transitions. [2020-10-26 20:34:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:34:20,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-10-26 20:34:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:20,481 INFO L225 Difference]: With dead ends: 1911 [2020-10-26 20:34:20,481 INFO L226 Difference]: Without dead ends: 1062 [2020-10-26 20:34:20,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:20,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2020-10-26 20:34:20,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1054. [2020-10-26 20:34:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-10-26 20:34:20,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1274 transitions. [2020-10-26 20:34:20,536 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1274 transitions. Word has length 163 [2020-10-26 20:34:20,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:20,536 INFO L481 AbstractCegarLoop]: Abstraction has 1054 states and 1274 transitions. [2020-10-26 20:34:20,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:20,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1274 transitions. [2020-10-26 20:34:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-26 20:34:20,542 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:20,542 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:20,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:34:20,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:20,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:20,543 INFO L82 PathProgramCache]: Analyzing trace with hash 447102782, now seen corresponding path program 1 times [2020-10-26 20:34:20,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:20,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111247347] [2020-10-26 20:34:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:20,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:21,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:22,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:23,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:23,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-26 20:34:23,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:23,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3362 [2020-10-26 20:34:23,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:23,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:34:23,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:24,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:24,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:24,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:24,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:24,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:24,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:34:24,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:34:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:24,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:24,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:24,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:24,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:24,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:24,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:24,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111247347] [2020-10-26 20:34:24,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:24,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:24,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809907850] [2020-10-26 20:34:24,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:24,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:24,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:24,329 INFO L87 Difference]: Start difference. First operand 1054 states and 1274 transitions. Second operand 8 states. [2020-10-26 20:34:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:26,223 INFO L93 Difference]: Finished difference Result 2501 states and 3069 transitions. [2020-10-26 20:34:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:34:26,228 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-10-26 20:34:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:26,238 INFO L225 Difference]: With dead ends: 2501 [2020-10-26 20:34:26,239 INFO L226 Difference]: Without dead ends: 1368 [2020-10-26 20:34:26,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:34:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2020-10-26 20:34:26,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1336. [2020-10-26 20:34:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1336 states. [2020-10-26 20:34:26,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1596 transitions. [2020-10-26 20:34:26,306 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1596 transitions. Word has length 175 [2020-10-26 20:34:26,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:26,307 INFO L481 AbstractCegarLoop]: Abstraction has 1336 states and 1596 transitions. [2020-10-26 20:34:26,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:26,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1596 transitions. [2020-10-26 20:34:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 20:34:26,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:26,312 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:26,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:34:26,313 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash 2046705023, now seen corresponding path program 1 times [2020-10-26 20:34:26,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:26,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942797842] [2020-10-26 20:34:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:26,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:26,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:29,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3646 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:34:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:34:29,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:30,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:30,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:30,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:34:30,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:30,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:34:30,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:30,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:30,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:30,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:34:30,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:30,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:34:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:30,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:30,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:30,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:30,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:34:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:30,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:30,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:30,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:30,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:30,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:30,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:30,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:30,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:34:30,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942797842] [2020-10-26 20:34:30,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:30,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:30,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423155992] [2020-10-26 20:34:30,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:30,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:30,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:30,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:30,575 INFO L87 Difference]: Start difference. First operand 1336 states and 1596 transitions. Second operand 8 states. [2020-10-26 20:34:30,713 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:31,771 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:32,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:32,769 INFO L93 Difference]: Finished difference Result 2904 states and 3456 transitions. [2020-10-26 20:34:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:34:32,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2020-10-26 20:34:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:32,781 INFO L225 Difference]: With dead ends: 2904 [2020-10-26 20:34:32,781 INFO L226 Difference]: Without dead ends: 1344 [2020-10-26 20:34:32,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:34:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2020-10-26 20:34:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1326. [2020-10-26 20:34:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-26 20:34:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1471 transitions. [2020-10-26 20:34:32,856 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1471 transitions. Word has length 178 [2020-10-26 20:34:32,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:32,857 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1471 transitions. [2020-10-26 20:34:32,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:32,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1471 transitions. [2020-10-26 20:34:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-26 20:34:32,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:32,864 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:32,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:34:32,865 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:32,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:32,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1695687809, now seen corresponding path program 1 times [2020-10-26 20:34:32,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:32,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905531421] [2020-10-26 20:34:32,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:32,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:32,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:33,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:34,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:35,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:35,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-26 20:34:35,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:35,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3003 [2020-10-26 20:34:35,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:35,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:35,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:36,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:36,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:36,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:36,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:36,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:36,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:36,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:36,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:34:36,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:34:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:36,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:34:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:36,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:36,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 57 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:34:36,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905531421] [2020-10-26 20:34:36,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:36,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:36,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834235984] [2020-10-26 20:34:36,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:36,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:36,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:36,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:36,227 INFO L87 Difference]: Start difference. First operand 1326 states and 1471 transitions. Second operand 8 states. [2020-10-26 20:34:37,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:37,773 INFO L93 Difference]: Finished difference Result 3418 states and 3869 transitions. [2020-10-26 20:34:37,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:34:37,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-10-26 20:34:37,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:37,785 INFO L225 Difference]: With dead ends: 3418 [2020-10-26 20:34:37,785 INFO L226 Difference]: Without dead ends: 2158 [2020-10-26 20:34:37,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:34:37,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2020-10-26 20:34:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1739. [2020-10-26 20:34:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1739 states. [2020-10-26 20:34:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 1976 transitions. [2020-10-26 20:34:37,860 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 1976 transitions. Word has length 188 [2020-10-26 20:34:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:37,861 INFO L481 AbstractCegarLoop]: Abstraction has 1739 states and 1976 transitions. [2020-10-26 20:34:37,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 1976 transitions. [2020-10-26 20:34:37,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-26 20:34:37,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:37,867 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:37,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:34:37,868 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:37,868 INFO L82 PathProgramCache]: Analyzing trace with hash 2060976335, now seen corresponding path program 1 times [2020-10-26 20:34:37,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:37,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574812217] [2020-10-26 20:34:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:37,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:37,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:38,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:42,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-26 20:34:42,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:43,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:43,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:43,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:43,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-26 20:34:43,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 20:34:43,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:43,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:43,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-26 20:34:43,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-26 20:34:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:43,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:34:43,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-26 20:34:43,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:43,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-26 20:34:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:43,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-26 20:34:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:43,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:43,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:43,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:43,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:43,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:43,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:43,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:43,303 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 72 proven. 35 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2020-10-26 20:34:43,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574812217] [2020-10-26 20:34:43,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:43,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:43,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031057709] [2020-10-26 20:34:43,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:43,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:43,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:43,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:43,307 INFO L87 Difference]: Start difference. First operand 1739 states and 1976 transitions. Second operand 7 states. [2020-10-26 20:34:44,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:44,954 INFO L93 Difference]: Finished difference Result 4258 states and 4963 transitions. [2020-10-26 20:34:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:44,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2020-10-26 20:34:44,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:44,969 INFO L225 Difference]: With dead ends: 4258 [2020-10-26 20:34:44,970 INFO L226 Difference]: Without dead ends: 2585 [2020-10-26 20:34:44,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 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 20:34:44,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2020-10-26 20:34:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2579. [2020-10-26 20:34:45,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2020-10-26 20:34:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 2904 transitions. [2020-10-26 20:34:45,094 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 2904 transitions. Word has length 202 [2020-10-26 20:34:45,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:45,094 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 2904 transitions. [2020-10-26 20:34:45,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 2904 transitions. [2020-10-26 20:34:45,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-26 20:34:45,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:45,102 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:45,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:34:45,103 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:45,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:45,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1593683028, now seen corresponding path program 1 times [2020-10-26 20:34:45,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:45,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302976369] [2020-10-26 20:34:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:46,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2543 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:34:47,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:47,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:47,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:47,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:47,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:47,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:34:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:47,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:47,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:47,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:47,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:34:47,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:48,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:34:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:48,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:48,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:48,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:48,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:48,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 107 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-26 20:34:48,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302976369] [2020-10-26 20:34:48,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:48,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:34:48,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584675715] [2020-10-26 20:34:48,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:34:48,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:48,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:34:48,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:34:48,376 INFO L87 Difference]: Start difference. First operand 2579 states and 2904 transitions. Second operand 8 states. [2020-10-26 20:34:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:50,074 INFO L93 Difference]: Finished difference Result 5676 states and 6482 transitions. [2020-10-26 20:34:50,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:34:50,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-10-26 20:34:50,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:50,092 INFO L225 Difference]: With dead ends: 5676 [2020-10-26 20:34:50,092 INFO L226 Difference]: Without dead ends: 3163 [2020-10-26 20:34:50,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:34:50,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2020-10-26 20:34:50,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3143. [2020-10-26 20:34:50,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2020-10-26 20:34:50,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3555 transitions. [2020-10-26 20:34:50,205 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3555 transitions. Word has length 225 [2020-10-26 20:34:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:50,205 INFO L481 AbstractCegarLoop]: Abstraction has 3143 states and 3555 transitions. [2020-10-26 20:34:50,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:34:50,206 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3555 transitions. [2020-10-26 20:34:50,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-26 20:34:50,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:50,216 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:50,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:34:50,216 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:50,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1150302316, now seen corresponding path program 1 times [2020-10-26 20:34:50,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:50,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677402015] [2020-10-26 20:34:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:50,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1558 [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:34:51,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:51,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:51,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:51,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:51,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:51,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:51,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:51,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:51,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:51,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:51,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:51,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:52,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:52,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:52,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:34:52,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:52,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:52,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:52,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:52,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:52,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:34:52,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:34:52,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:52,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:52,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:52,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:34:52,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:34:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:52,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:52,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:52,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:52,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:52,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:52,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-26 20:34:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:52,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:52,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:52,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:52,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:34:52,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:52,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 134 proven. 14 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-26 20:34:52,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677402015] [2020-10-26 20:34:52,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:52,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:52,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094802436] [2020-10-26 20:34:52,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:52,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:52,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:52,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:52,271 INFO L87 Difference]: Start difference. First operand 3143 states and 3555 transitions. Second operand 7 states. [2020-10-26 20:34:52,805 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:53,046 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-26 20:34:54,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:54,279 INFO L93 Difference]: Finished difference Result 6653 states and 7621 transitions. [2020-10-26 20:34:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:54,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2020-10-26 20:34:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:54,297 INFO L225 Difference]: With dead ends: 6653 [2020-10-26 20:34:54,297 INFO L226 Difference]: Without dead ends: 3576 [2020-10-26 20:34:54,306 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2020-10-26 20:34:54,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3562. [2020-10-26 20:34:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3562 states. [2020-10-26 20:34:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3562 states to 3562 states and 3999 transitions. [2020-10-26 20:34:54,422 INFO L78 Accepts]: Start accepts. Automaton has 3562 states and 3999 transitions. Word has length 241 [2020-10-26 20:34:54,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:54,422 INFO L481 AbstractCegarLoop]: Abstraction has 3562 states and 3999 transitions. [2020-10-26 20:34:54,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:54,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states and 3999 transitions. [2020-10-26 20:34:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-26 20:34:54,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:54,436 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:54,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:34:54,436 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:54,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1008053306, now seen corresponding path program 1 times [2020-10-26 20:34:54,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:54,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165366962] [2020-10-26 20:34:54,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:54,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:54,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1403 [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:55,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-10-26 20:34:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:34:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:34:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:56,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:34:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-26 20:34:56,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:34:56,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:34:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-26 20:34:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:56,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:34:56,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:56,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:34:56,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-26 20:34:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:56,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 155 proven. 14 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-26 20:34:56,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165366962] [2020-10-26 20:34:56,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:34:56,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:34:56,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434508744] [2020-10-26 20:34:56,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:34:56,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:34:56,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:34:56,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:34:56,342 INFO L87 Difference]: Start difference. First operand 3562 states and 3999 transitions. Second operand 7 states. [2020-10-26 20:34:57,612 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:34:58,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:34:58,070 INFO L93 Difference]: Finished difference Result 7610 states and 8602 transitions. [2020-10-26 20:34:58,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:34:58,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-10-26 20:34:58,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:34:58,101 INFO L225 Difference]: With dead ends: 7610 [2020-10-26 20:34:58,101 INFO L226 Difference]: Without dead ends: 4114 [2020-10-26 20:34:58,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:34:58,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4114 states. [2020-10-26 20:34:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4114 to 4108. [2020-10-26 20:34:58,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4108 states. [2020-10-26 20:34:58,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4604 transitions. [2020-10-26 20:34:58,229 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4604 transitions. Word has length 251 [2020-10-26 20:34:58,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:34:58,230 INFO L481 AbstractCegarLoop]: Abstraction has 4108 states and 4604 transitions. [2020-10-26 20:34:58,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:34:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4604 transitions. [2020-10-26 20:34:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-10-26 20:34:58,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:34:58,244 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:34:58,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:34:58,244 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:34:58,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:34:58,245 INFO L82 PathProgramCache]: Analyzing trace with hash 2049858767, now seen corresponding path program 1 times [2020-10-26 20:34:58,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:34:58,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510288133] [2020-10-26 20:34:58,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:34:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:58,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1279 [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:34:59,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:34:59,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:34:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:34:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:34:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:34:59,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:34:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:34:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:34:59,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:34:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:34:59,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:34:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:34:59,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:34:59,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:34:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:34:59,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:34:59,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 175 proven. 41 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-26 20:35:00,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510288133] [2020-10-26 20:35:00,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:00,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:00,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153490543] [2020-10-26 20:35:00,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:00,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:00,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:00,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:00,027 INFO L87 Difference]: Start difference. First operand 4108 states and 4604 transitions. Second operand 7 states. [2020-10-26 20:35:00,417 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:01,943 INFO L93 Difference]: Finished difference Result 8569 states and 9656 transitions. [2020-10-26 20:35:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:35:01,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2020-10-26 20:35:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:01,972 INFO L225 Difference]: With dead ends: 8569 [2020-10-26 20:35:01,972 INFO L226 Difference]: Without dead ends: 4527 [2020-10-26 20:35:01,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2020-10-26 20:35:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4517. [2020-10-26 20:35:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4517 states. [2020-10-26 20:35:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 5023 transitions. [2020-10-26 20:35:02,114 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 5023 transitions. Word has length 272 [2020-10-26 20:35:02,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:02,114 INFO L481 AbstractCegarLoop]: Abstraction has 4517 states and 5023 transitions. [2020-10-26 20:35:02,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 5023 transitions. [2020-10-26 20:35:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-26 20:35:02,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:02,126 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:02,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:35:02,126 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash 555984506, now seen corresponding path program 1 times [2020-10-26 20:35:02,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:02,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342244654] [2020-10-26 20:35:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:02,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:02,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:03,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-26 20:35:04,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1769 [2020-10-26 20:35:04,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:35:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:35:04,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:04,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:35:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:04,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:35:04,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:35:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:04,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:35:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:04,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:04,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 187 proven. 14 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-26 20:35:04,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342244654] [2020-10-26 20:35:04,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:04,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:04,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5327761] [2020-10-26 20:35:04,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:04,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:04,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:04,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:04,467 INFO L87 Difference]: Start difference. First operand 4517 states and 5023 transitions. Second operand 7 states. [2020-10-26 20:35:04,698 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:35:05,766 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:06,887 INFO L93 Difference]: Finished difference Result 9242 states and 10300 transitions. [2020-10-26 20:35:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:35:06,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 283 [2020-10-26 20:35:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:06,914 INFO L225 Difference]: With dead ends: 9242 [2020-10-26 20:35:06,914 INFO L226 Difference]: Without dead ends: 4517 [2020-10-26 20:35:06,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:06,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2020-10-26 20:35:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 4243. [2020-10-26 20:35:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2020-10-26 20:35:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 4719 transitions. [2020-10-26 20:35:07,024 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 4719 transitions. Word has length 283 [2020-10-26 20:35:07,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:07,025 INFO L481 AbstractCegarLoop]: Abstraction has 4243 states and 4719 transitions. [2020-10-26 20:35:07,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 4719 transitions. [2020-10-26 20:35:07,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-26 20:35:07,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:07,035 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:07,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:35:07,036 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:07,036 INFO L82 PathProgramCache]: Analyzing trace with hash -459988837, now seen corresponding path program 1 times [2020-10-26 20:35:07,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:07,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [741799232] [2020-10-26 20:35:07,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-26 20:35:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-26 20:35:07,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:07,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:07,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:07,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:07,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:07,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:07,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:07,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:07,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-26 20:35:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:07,995 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-26 20:35:07,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [741799232] [2020-10-26 20:35:07,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:07,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:35:07,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063579929] [2020-10-26 20:35:07,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:35:07,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:07,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:35:07,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:07,997 INFO L87 Difference]: Start difference. First operand 4243 states and 4719 transitions. Second operand 5 states. [2020-10-26 20:35:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:09,333 INFO L93 Difference]: Finished difference Result 8694 states and 9712 transitions. [2020-10-26 20:35:09,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:09,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-26 20:35:09,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:09,353 INFO L225 Difference]: With dead ends: 8694 [2020-10-26 20:35:09,353 INFO L226 Difference]: Without dead ends: 4517 [2020-10-26 20:35:09,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:35:09,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4517 states. [2020-10-26 20:35:09,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4517 to 4507. [2020-10-26 20:35:09,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4507 states. [2020-10-26 20:35:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4507 states to 4507 states and 4947 transitions. [2020-10-26 20:35:09,463 INFO L78 Accepts]: Start accepts. Automaton has 4507 states and 4947 transitions. Word has length 294 [2020-10-26 20:35:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:09,464 INFO L481 AbstractCegarLoop]: Abstraction has 4507 states and 4947 transitions. [2020-10-26 20:35:09,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:35:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 4507 states and 4947 transitions. [2020-10-26 20:35:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-26 20:35:09,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:09,475 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:09,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 20:35:09,476 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:09,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:09,476 INFO L82 PathProgramCache]: Analyzing trace with hash 455193273, now seen corresponding path program 1 times [2020-10-26 20:35:09,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:09,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497987288] [2020-10-26 20:35:09,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:09,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:09,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:13,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-26 20:35:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:14,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:35:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:35:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:14,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:35:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:35:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:35:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-26 20:35:14,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:14,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-26 20:35:14,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:14,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-10-26 20:35:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:14,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:14,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:14,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:14,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:14,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:35:14,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:14,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:14,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 250 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 20:35:15,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497987288] [2020-10-26 20:35:15,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:15,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:15,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904929204] [2020-10-26 20:35:15,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:15,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:15,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:15,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:15,004 INFO L87 Difference]: Start difference. First operand 4507 states and 4947 transitions. Second operand 8 states. [2020-10-26 20:35:15,210 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:35:16,206 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:17,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:17,037 INFO L93 Difference]: Finished difference Result 9332 states and 10252 transitions. [2020-10-26 20:35:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:17,037 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 302 [2020-10-26 20:35:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:17,038 INFO L225 Difference]: With dead ends: 9332 [2020-10-26 20:35:17,038 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:35:17,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:35:17,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:35:17,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:35:17,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:35:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:35:17,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 302 [2020-10-26 20:35:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:17,057 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:35:17,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:17,057 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:35:17,057 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:35:17,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 20:35:17,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:35:18,155 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 202 [2020-10-26 20:35:18,365 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 192 [2020-10-26 20:35:18,681 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 40 [2020-10-26 20:35:21,186 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 258 DAG size of output: 88 [2020-10-26 20:35:22,184 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-10-26 20:35:23,289 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 70 [2020-10-26 20:35:23,841 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 61 [2020-10-26 20:35:23,846 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:35:23,846 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:35:23,846 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,847 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:35:23,848 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,849 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:35:23,850 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:35:23,851 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:35:23,852 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:35:23,853 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:35:23,854 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,855 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,856 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:35:23,857 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,858 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L270 CegarLoopResult]: At program point L553(line 553) the Hoare annotation is: (let ((.cse7 (not (= 15 |old(~a8~0)|))) (.cse2 (and (not (< 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0)))) (.cse8 (not (<= |old(~a16~0)| 5))) (.cse3 (not (= |old(~a20~0)| 1))) (.cse6 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse1 (not (= |old(~a7~0)| 1))) (.cse0 (not (= |old(~a8~0)| 13))) (.cse4 (not (= |old(~a21~0)| 1))) (.cse5 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or (not (<= 6 |old(~a16~0)|)) .cse4 .cse5) (or .cse1 .cse3 .cse4) (or .cse6 .cse4 .cse5) (or (not (= 5 |old(~a16~0)|)) .cse7 .cse4 .cse5) (or (not (= |old(~a17~0)| 1)) .cse7 .cse4 .cse5) (or .cse0 .cse1 (not (= 0 |old(~a20~0)|)) (not (= 4 |old(~a16~0)|))) (or .cse0 .cse8 .cse2 .cse4) (or .cse8 .cse6 .cse1 .cse4) (or .cse0 .cse3 .cse4) (or .cse0 .cse6 .cse1) (or .cse0 .cse4 .cse5))) [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L553-1(line 553) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:35:23,859 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse1 (= ~a21~0 1)) (.cse22 (= ~a8~0 |old(~a8~0)|)) (.cse4 (= ~a7~0 0)) (.cse20 (= ~a7~0 |old(~a7~0)|)) (.cse0 (= ~a17~0 |old(~a17~0)|)) (.cse21 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse18 (= ~a16~0 |old(~a16~0)|)) (.cse19 (= ~a8~0 13))) (let ((.cse9 (not (<= |old(~a16~0)| 5))) (.cse17 (and .cse20 .cse0 .cse21 .cse2 .cse18 .cse19)) (.cse11 (and (not (< 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 0)))) (.cse14 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse12 (and .cse0 .cse1 .cse2 .cse18 .cse22 .cse4)) (.cse3 (= ~a8~0 15)) (.cse5 (not (= 15 |old(~a8~0)|))) (.cse7 (not (= |old(~a7~0)| 0))) (.cse8 (not (= |old(~a8~0)| 13))) (.cse10 (and .cse20 .cse0 .cse1 .cse2 .cse18 .cse19)) (.cse15 (not (= |old(~a7~0)| 1))) (.cse13 (not (= |old(~a20~0)| 1))) (.cse6 (not (= |old(~a21~0)| 1))) (.cse16 (and .cse20 .cse0 .cse1 .cse2 .cse18 .cse22))) (and (or (and .cse0 .cse1 .cse2 .cse3 (= 5 ~a16~0) .cse4) (not (= 5 |old(~a16~0)|)) .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse11 .cse6) (or .cse12 .cse13 .cse6 .cse7) (or .cse9 .cse14 .cse15 .cse16 .cse6) (or .cse8 .cse17 .cse14 .cse15) (or .cse8 (and .cse0 .cse1 .cse2 .cse18 .cse19 .cse4) .cse6 .cse7) (or .cse8 .cse17 .cse15 .cse11) (or .cse12 .cse14 .cse6 .cse7) (or .cse8 .cse15 (and .cse20 .cse0 .cse21 .cse2 .cse19 (= ~a16~0 4)) (not (= 0 |old(~a20~0)|)) (not (= 4 |old(~a16~0)|))) (or .cse12 (not (<= 6 |old(~a16~0)|)) .cse6 .cse7) (or (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse2 .cse18 .cse3 .cse4) .cse5 .cse6 .cse7) (or .cse8 .cse10 .cse13 .cse6) (or .cse15 .cse13 .cse6 .cse16)))) [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,860 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:35:23,861 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:35:23,862 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:35:23,863 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:35:23,864 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:35:23,865 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:35:23,865 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (<= ~a21~0 1) (<= 1 ~a21~0) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:35:23,865 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:35:23,865 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:35:23,865 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:35:23,865 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:23,865 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse9 (= ~a20~0 ~a17~0)) (.cse10 (<= ~a16~0 5)) (.cse2 (or (<= ~a17~0 0) (< 1 ~a17~0))) (.cse7 (= ~a21~0 1)) (.cse8 (= ~a8~0 15)) (.cse6 (= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse4 (<= ~a21~0 1)) (.cse5 (<= 1 ~a21~0)) (.cse0 (= ~a7~0 1)) (.cse1 (= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a21~0)| 1)) (not (= |old(~a20~0)| 1)) (and .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 (= 5 ~a16~0) .cse6) (and .cse9 .cse7 .cse6) (and .cse1 .cse3 .cse4 .cse5) (and (<= 6 ~a16~0) .cse7 .cse6) (not (= |old(~a17~0)| 1)) (and .cse9 .cse7 .cse0 .cse10) (and .cse9 .cse0 .cse1) (not (<= 1 |old(~a21~0)|)) (and .cse7 .cse1 .cse6) (and .cse7 .cse10 .cse1 .cse2) (and .cse7 .cse8 .cse6 (= ~a17~0 1)) (and .cse0 .cse3 .cse4 .cse5) (not (= 5 |old(~a16~0)|)) (and (= ~a20~0 0) .cse0 .cse1 (= ~a16~0 4)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:35:23,866 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:35:23,866 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:35:23,866 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse9 (= ~a20~0 ~a17~0)) (.cse10 (<= ~a16~0 5)) (.cse2 (or (<= ~a17~0 0) (< 1 ~a17~0))) (.cse7 (= ~a21~0 1)) (.cse8 (= ~a8~0 15)) (.cse6 (= ~a7~0 0)) (.cse3 (= ~a20~0 1)) (.cse4 (<= ~a21~0 1)) (.cse5 (<= 1 ~a21~0)) (.cse0 (= ~a7~0 1)) (.cse1 (= ~a8~0 13))) (or (and .cse0 .cse1 .cse2) (not (<= |old(~a21~0)| 1)) (not (= |old(~a20~0)| 1)) (and .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse8 (= 5 ~a16~0) .cse6) (and .cse9 .cse7 .cse6) (and .cse1 .cse3 .cse4 .cse5) (and (<= 6 ~a16~0) .cse7 .cse6) (not (= |old(~a17~0)| 1)) (and .cse9 .cse7 .cse0 .cse10) (and .cse9 .cse0 .cse1) (not (<= 1 |old(~a21~0)|)) (and .cse7 .cse1 .cse6) (and .cse7 .cse10 .cse1 .cse2) (and .cse7 .cse8 .cse6 (= ~a17~0 1)) (and .cse0 .cse3 .cse4 .cse5) (not (= 5 |old(~a16~0)|)) (and (= ~a20~0 0) .cse0 .cse1 (= ~a16~0 4)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)))) [2020-10-26 20:35:23,866 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:35:23,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:35:23 BoogieIcfgContainer [2020-10-26 20:35:23,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:35:23,916 INFO L168 Benchmark]: Toolchain (without parser) took 91808.57 ms. Allocated memory was 152.0 MB in the beginning and 1.1 GB in the end (delta: 963.6 MB). Free memory was 126.5 MB in the beginning and 570.6 MB in the end (delta: -444.0 MB). Peak memory consumption was 665.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:23,917 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:35:23,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.81 ms. Allocated memory is still 152.0 MB. Free memory was 125.8 MB in the beginning and 99.1 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:23,918 INFO L168 Benchmark]: Boogie Preprocessor took 142.24 ms. Allocated memory is still 152.0 MB. Free memory was 99.1 MB in the beginning and 130.4 MB in the end (delta: -31.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:23,921 INFO L168 Benchmark]: RCFGBuilder took 1411.86 ms. Allocated memory was 152.0 MB in the beginning and 185.6 MB in the end (delta: 33.6 MB). Free memory was 130.4 MB in the beginning and 143.1 MB in the end (delta: -12.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:23,921 INFO L168 Benchmark]: TraceAbstraction took 89526.68 ms. Allocated memory was 185.6 MB in the beginning and 1.1 GB in the end (delta: 930.1 MB). Free memory was 142.5 MB in the beginning and 570.6 MB in the end (delta: -428.0 MB). Peak memory consumption was 647.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:35:23,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 713.81 ms. Allocated memory is still 152.0 MB. Free memory was 125.8 MB in the beginning and 99.1 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 142.24 ms. Allocated memory is still 152.0 MB. Free memory was 99.1 MB in the beginning and 130.4 MB in the end (delta: -31.3 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1411.86 ms. Allocated memory was 152.0 MB in the beginning and 185.6 MB in the end (delta: 33.6 MB). Free memory was 130.4 MB in the beginning and 143.1 MB in the end (delta: -12.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 89526.68 ms. Allocated memory was 185.6 MB in the beginning and 1.1 GB in the end (delta: 930.1 MB). Free memory was 142.5 MB in the beginning and 570.6 MB in the end (delta: -428.0 MB). Peak memory consumption was 647.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((((((((((((((((a7 == 1 && a8 == 13) && (a17 <= 0 || 1 < a17)) || !(\old(a21) <= 1)) || !(\old(a20) == 1)) || (((a20 == 1 && a21 <= 1) && 1 <= a21) && a7 == 0)) || (((a21 == 1 && a8 == 15) && 5 == a16) && a7 == 0)) || ((a20 == a17 && a21 == 1) && a7 == 0)) || (((a8 == 13 && a20 == 1) && a21 <= 1) && 1 <= a21)) || ((6 <= a16 && a21 == 1) && a7 == 0)) || !(\old(a17) == 1)) || (((a20 == a17 && a21 == 1) && a7 == 1) && a16 <= 5)) || ((a20 == a17 && a7 == 1) && a8 == 13)) || !(1 <= \old(a21))) || ((a21 == 1 && a8 == 13) && a7 == 0)) || (((a21 == 1 && a16 <= 5) && a8 == 13) && (a17 <= 0 || 1 < a17))) || (((a21 == 1 && a8 == 15) && a7 == 0) && a17 == 1)) || (((a7 == 1 && a20 == 1) && a21 <= 1) && 1 <= a21)) || !(5 == \old(a16))) || (((a20 == 0 && a7 == 1) && a8 == 13) && a16 == 4)) || !(15 == \old(a8))) || !(\old(a7) == 0)) || !(a12 == 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 82.6s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 32.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 415 SDtfs, 6324 SDslu, 544 SDs, 0 SdLazy, 12936 SolverSat, 1589 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 8.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4517occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1113 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 584 PreInvPairs, 668 NumberOfFragments, 1200 HoareAnnotationTreeSize, 584 FomulaSimplifications, 15628 FormulaSimplificationTreeSizeReduction, 1.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 10785 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 46.4s InterpolantComputationTime, 3340 NumberOfCodeBlocks, 3340 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3324 ConstructedInterpolants, 0 QuantifiedInterpolants, 2444248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 2184/2416 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...