/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:57:01,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:57:01,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:57:01,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:57:01,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:57:01,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:57:01,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:57:01,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:57:01,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:57:01,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:57:01,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:57:01,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:57:01,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:57:01,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:57:01,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:57:01,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:57:01,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:57:01,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:57:01,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:57:01,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:57:01,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:57:01,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:57:01,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:57:01,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:57:01,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:57:01,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:57:01,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:57:01,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:57:01,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:57:01,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:57:01,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:57:01,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:57:01,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:57:01,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:57:01,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:57:01,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:57:01,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:57:01,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:57:01,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:57:01,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:57:01,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:57:01,950 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 [2020-10-28 11:57:02,008 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:57:02,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:57:02,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:57:02,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:57:02,011 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:57:02,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:57:02,011 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:57:02,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:57:02,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:57:02,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:57:02,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:57:02,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:57:02,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:57:02,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:57:02,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:57:02,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:57:02,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:57:02,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:57:02,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:57:02,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:57:02,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:57:02,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:57:02,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:57:02,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:57:02,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:57:02,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:57:02,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:57:02,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:57:02,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:57:02,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:57:02,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:57:02,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:57:02,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:57:02,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:57:02,449 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:57:02,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-28 11:57:02,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdeb7a39d/0f90bd6e012c4248b53580891b8a4f8d/FLAGa4adb4b35 [2020-10-28 11:57:03,347 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:57:03,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label04.c [2020-10-28 11:57:03,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdeb7a39d/0f90bd6e012c4248b53580891b8a4f8d/FLAGa4adb4b35 [2020-10-28 11:57:03,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdeb7a39d/0f90bd6e012c4248b53580891b8a4f8d [2020-10-28 11:57:03,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:57:03,569 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:57:03,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:57:03,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:57:03,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:57:03,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:57:03" (1/1) ... [2020-10-28 11:57:03,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad199fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:03, skipping insertion in model container [2020-10-28 11:57:03,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:57:03" (1/1) ... [2020-10-28 11:57:03,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:57:03,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:57:04,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:04,094 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:57:04,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:57:04,291 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:57:04,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04 WrapperNode [2020-10-28 11:57:04,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:57:04,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:57:04,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:57:04,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:57:04,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (1/1) ... [2020-10-28 11:57:04,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:57:04,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:57:04,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:57:04,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:57:04,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (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 [2020-10-28 11:57:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:57:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:57:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:57:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:57:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:57:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:57:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:57:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:57:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:57:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:57:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:57:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:57:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:57:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:57:06,005 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:57:06,005 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:57:06,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:06 BoogieIcfgContainer [2020-10-28 11:57:06,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:57:06,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:57:06,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:57:06,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:57:06,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:57:03" (1/3) ... [2020-10-28 11:57:06,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4b99dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:06, skipping insertion in model container [2020-10-28 11:57:06,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:57:04" (2/3) ... [2020-10-28 11:57:06,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4b99dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:57:06, skipping insertion in model container [2020-10-28 11:57:06,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:57:06" (3/3) ... [2020-10-28 11:57:06,018 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label04.c [2020-10-28 11:57:06,032 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:57:06,039 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:57:06,055 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:57:06,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:57:06,088 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:57:06,088 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:57:06,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:57:06,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:57:06,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:57:06,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:57:06,089 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:57:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:57:06,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-28 11:57:06,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:06,132 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] [2020-10-28 11:57:06,133 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:06,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:06,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1596012158, now seen corresponding path program 1 times [2020-10-28 11:57:06,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:06,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1176705091] [2020-10-28 11:57:06,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:06,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:07,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:07,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:07,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 757 [2020-10-28 11:57:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:07,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:57:07,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:07,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:07,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:07,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:07,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:07,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 11:57:07,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:07,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:07,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:07,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:07,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:07,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1176705091] [2020-10-28 11:57:07,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:57:07,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:57:07,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46806140] [2020-10-28 11:57:07,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:57:07,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:07,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:57:07,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:57:07,421 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:57:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:09,326 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-28 11:57:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:09,328 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2020-10-28 11:57:09,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:09,356 INFO L225 Difference]: With dead ends: 586 [2020-10-28 11:57:09,356 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:57:09,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:57:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 11:57:09,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 11:57:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-28 11:57:09,493 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 73 [2020-10-28 11:57:09,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:09,495 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-28 11:57:09,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:57:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-28 11:57:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 11:57:09,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:09,511 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:09,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:57:09,512 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:09,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:09,513 INFO L82 PathProgramCache]: Analyzing trace with hash -782368033, now seen corresponding path program 1 times [2020-10-28 11:57:09,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:09,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [485905347] [2020-10-28 11:57:09,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:09,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:10,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:10,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 11:57:10,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1364 [2020-10-28 11:57:10,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:10,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 11:57:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:11,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:11,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:11,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:11,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:11,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 11:57:11,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:11,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:11,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:11,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:57:11,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:11,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:11,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:11,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [485905347] [2020-10-28 11:57:11,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:11,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:11,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350616873] [2020-10-28 11:57:11,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:11,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:11,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:11,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:11,418 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-28 11:57:11,639 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-28 11:57:13,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:13,148 INFO L93 Difference]: Finished difference Result 886 states and 1199 transitions. [2020-10-28 11:57:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:13,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-28 11:57:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:13,155 INFO L225 Difference]: With dead ends: 886 [2020-10-28 11:57:13,155 INFO L226 Difference]: Without dead ends: 593 [2020-10-28 11:57:13,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-28 11:57:13,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-10-28 11:57:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-28 11:57:13,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 757 transitions. [2020-10-28 11:57:13,211 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 757 transitions. Word has length 143 [2020-10-28 11:57:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:13,212 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 757 transitions. [2020-10-28 11:57:13,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:13,212 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 757 transitions. [2020-10-28 11:57:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-28 11:57:13,214 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:13,215 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 11:57:13,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:57:13,215 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:13,216 INFO L82 PathProgramCache]: Analyzing trace with hash 597897789, now seen corresponding path program 1 times [2020-10-28 11:57:13,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:13,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [489178768] [2020-10-28 11:57:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:13,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:13,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-28 11:57:13,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:13,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 553 [2020-10-28 11:57:13,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:13,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:13,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:13,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:57:13,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 11:57:13,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:13,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:13,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:13,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:13,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:13,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:13,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 11:57:13,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:13,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:13,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:13,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:13,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:14,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:14,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:14,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:14,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:57:14,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:14,163 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 64 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:57:14,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [489178768] [2020-10-28 11:57:14,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:14,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:14,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593464321] [2020-10-28 11:57:14,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:14,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:14,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:14,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:14,171 INFO L87 Difference]: Start difference. First operand 589 states and 757 transitions. Second operand 5 states. [2020-10-28 11:57:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:16,034 INFO L93 Difference]: Finished difference Result 1466 states and 1917 transitions. [2020-10-28 11:57:16,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:16,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-10-28 11:57:16,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:16,046 INFO L225 Difference]: With dead ends: 1466 [2020-10-28 11:57:16,046 INFO L226 Difference]: Without dead ends: 593 [2020-10-28 11:57:16,049 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2020-10-28 11:57:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 589. [2020-10-28 11:57:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2020-10-28 11:57:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 734 transitions. [2020-10-28 11:57:16,082 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 734 transitions. Word has length 152 [2020-10-28 11:57:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:16,083 INFO L481 AbstractCegarLoop]: Abstraction has 589 states and 734 transitions. [2020-10-28 11:57:16,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 734 transitions. [2020-10-28 11:57:16,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-28 11:57:16,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:16,087 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:16,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:57:16,087 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:16,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:16,088 INFO L82 PathProgramCache]: Analyzing trace with hash -392299008, now seen corresponding path program 1 times [2020-10-28 11:57:16,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:16,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237522588] [2020-10-28 11:57:16,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:16,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:16,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:16,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-28 11:57:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:17,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1166 [2020-10-28 11:57:17,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:17,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 11:57:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:17,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:17,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:17,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:17,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:17,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:57:17,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 11:57:17,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:17,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:57:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:17,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 11:57:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:17,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:17,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:17,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:57:17,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:17,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-28 11:57:17,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:17,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:17,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:17,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:57:17,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 191 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:57:17,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237522588] [2020-10-28 11:57:17,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:17,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:57:17,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438631982] [2020-10-28 11:57:17,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:57:17,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:17,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:57:17,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:17,908 INFO L87 Difference]: Start difference. First operand 589 states and 734 transitions. Second operand 6 states. [2020-10-28 11:57:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:19,715 INFO L93 Difference]: Finished difference Result 1478 states and 1908 transitions. [2020-10-28 11:57:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 11:57:19,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2020-10-28 11:57:19,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:19,730 INFO L225 Difference]: With dead ends: 1478 [2020-10-28 11:57:19,730 INFO L226 Difference]: Without dead ends: 895 [2020-10-28 11:57:19,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:19,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-10-28 11:57:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 742. [2020-10-28 11:57:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-28 11:57:19,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 904 transitions. [2020-10-28 11:57:19,798 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 904 transitions. Word has length 215 [2020-10-28 11:57:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:19,799 INFO L481 AbstractCegarLoop]: Abstraction has 742 states and 904 transitions. [2020-10-28 11:57:19,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:57:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 904 transitions. [2020-10-28 11:57:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-28 11:57:19,805 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:19,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:19,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:57:19,805 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:19,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1500342170, now seen corresponding path program 1 times [2020-10-28 11:57:19,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:19,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1453551998] [2020-10-28 11:57:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:19,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:20,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:22,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-28 11:57:24,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:24,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4179 [2020-10-28 11:57:24,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 11:57:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 11:57:24,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:24,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:24,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:24,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:24,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:24,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:57:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 11:57:24,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:24,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:57:24,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 11:57:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:24,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:24,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:57:24,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:57:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 132 proven. 69 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:24,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1453551998] [2020-10-28 11:57:24,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:24,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:24,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476940911] [2020-10-28 11:57:24,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:24,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:24,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:24,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:24,561 INFO L87 Difference]: Start difference. First operand 742 states and 904 transitions. Second operand 7 states. [2020-10-28 11:57:27,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:27,094 INFO L93 Difference]: Finished difference Result 1782 states and 2268 transitions. [2020-10-28 11:57:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:27,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-28 11:57:27,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:27,103 INFO L225 Difference]: With dead ends: 1782 [2020-10-28 11:57:27,103 INFO L226 Difference]: Without dead ends: 1046 [2020-10-28 11:57:27,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:57:27,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-28 11:57:27,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1036. [2020-10-28 11:57:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2020-10-28 11:57:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1267 transitions. [2020-10-28 11:57:27,151 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1267 transitions. Word has length 222 [2020-10-28 11:57:27,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:27,151 INFO L481 AbstractCegarLoop]: Abstraction has 1036 states and 1267 transitions. [2020-10-28 11:57:27,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1267 transitions. [2020-10-28 11:57:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-28 11:57:27,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:27,158 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 11:57:27,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:57:27,158 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:27,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2006266030, now seen corresponding path program 1 times [2020-10-28 11:57:27,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:27,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211297941] [2020-10-28 11:57:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:27,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:27,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:29,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:32,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-10-28 11:57:32,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-28 11:57:32,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:32,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-28 11:57:32,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:57:32,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:32,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:32,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:32,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:32,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:32,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:32,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:32,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:32,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:32,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:32,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:57:32,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:32,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 11:57:32,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:32,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:32,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:32,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:57:32,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:57:32,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 11:57:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:32,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:32,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:32,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:32,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:57:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:32,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211297941] [2020-10-28 11:57:32,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:32,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:32,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033571210] [2020-10-28 11:57:32,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:32,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:32,751 INFO L87 Difference]: Start difference. First operand 1036 states and 1267 transitions. Second operand 7 states. [2020-10-28 11:57:34,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:34,799 INFO L93 Difference]: Finished difference Result 2384 states and 2948 transitions. [2020-10-28 11:57:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 11:57:34,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-28 11:57:34,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:34,808 INFO L225 Difference]: With dead ends: 2384 [2020-10-28 11:57:34,808 INFO L226 Difference]: Without dead ends: 1354 [2020-10-28 11:57:34,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:34,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2020-10-28 11:57:34,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1054. [2020-10-28 11:57:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1054 states. [2020-10-28 11:57:34,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1284 transitions. [2020-10-28 11:57:34,858 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1284 transitions. Word has length 232 [2020-10-28 11:57:34,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:34,859 INFO L481 AbstractCegarLoop]: Abstraction has 1054 states and 1284 transitions. [2020-10-28 11:57:34,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1284 transitions. [2020-10-28 11:57:34,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-28 11:57:34,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:34,865 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:34,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:57:34,865 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:34,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:34,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1456696962, now seen corresponding path program 1 times [2020-10-28 11:57:34,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:34,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609690992] [2020-10-28 11:57:34,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:34,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:35,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:35,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:37,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:39,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:39,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-10-28 11:57:39,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-28 11:57:39,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:39,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:57:39,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 11:57:39,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:40,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:40,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:40,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:40,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 11:57:40,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:40,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:40,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:57:40,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 11:57:40,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:40,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:40,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:40,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:40,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:57:40,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:40,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-28 11:57:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:40,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:40,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:40,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:40,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:40,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 11:57:40,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:40,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:40,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:40,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:40,467 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 130 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:57:40,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609690992] [2020-10-28 11:57:40,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:40,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:40,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472638623] [2020-10-28 11:57:40,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:40,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:40,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:40,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:40,471 INFO L87 Difference]: Start difference. First operand 1054 states and 1284 transitions. Second operand 7 states. [2020-10-28 11:57:42,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:42,324 INFO L93 Difference]: Finished difference Result 2269 states and 2758 transitions. [2020-10-28 11:57:42,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:57:42,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-28 11:57:42,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:42,334 INFO L225 Difference]: With dead ends: 2269 [2020-10-28 11:57:42,334 INFO L226 Difference]: Without dead ends: 1221 [2020-10-28 11:57:42,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:57:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-10-28 11:57:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1207. [2020-10-28 11:57:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1207 states. [2020-10-28 11:57:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1450 transitions. [2020-10-28 11:57:42,404 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1450 transitions. Word has length 242 [2020-10-28 11:57:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:42,405 INFO L481 AbstractCegarLoop]: Abstraction has 1207 states and 1450 transitions. [2020-10-28 11:57:42,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1450 transitions. [2020-10-28 11:57:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-28 11:57:42,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:42,411 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:42,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 11:57:42,412 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:42,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1634153690, now seen corresponding path program 1 times [2020-10-28 11:57:42,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:42,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314250131] [2020-10-28 11:57:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-28 11:57:43,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:57:43,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-10-28 11:57:43,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:57:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:43,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-28 11:57:43,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:43,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:43,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 11:57:43,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:43,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:43,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:43,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:43,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:43,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:43,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:43,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:44,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:44,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:57:44,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 11:57:44,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:44,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:57:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:44,200 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 132 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 11:57:44,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314250131] [2020-10-28 11:57:44,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:44,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:57:44,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079519654] [2020-10-28 11:57:44,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:57:44,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:44,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:57:44,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:44,202 INFO L87 Difference]: Start difference. First operand 1207 states and 1450 transitions. Second operand 6 states. [2020-10-28 11:57:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:45,877 INFO L93 Difference]: Finished difference Result 3004 states and 3734 transitions. [2020-10-28 11:57:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 11:57:45,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 260 [2020-10-28 11:57:45,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:45,893 INFO L225 Difference]: With dead ends: 3004 [2020-10-28 11:57:45,893 INFO L226 Difference]: Without dead ends: 1946 [2020-10-28 11:57:45,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:57:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2020-10-28 11:57:45,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1942. [2020-10-28 11:57:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2020-10-28 11:57:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 2312 transitions. [2020-10-28 11:57:45,968 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 2312 transitions. Word has length 260 [2020-10-28 11:57:45,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:45,970 INFO L481 AbstractCegarLoop]: Abstraction has 1942 states and 2312 transitions. [2020-10-28 11:57:45,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:57:45,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 2312 transitions. [2020-10-28 11:57:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-28 11:57:45,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:45,979 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 11:57:45,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 11:57:45,979 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:45,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:45,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1630704954, now seen corresponding path program 1 times [2020-10-28 11:57:45,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:45,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490290591] [2020-10-28 11:57:45,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:46,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:46,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:48,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:48,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-28 11:57:48,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:57:48,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1971 [2020-10-28 11:57:48,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:48,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:48,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:48,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:57:48,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:48,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:48,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:48,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:48,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:48,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:48,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:48,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:48,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:48,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:48,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:48,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:48,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:48,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:48,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:48,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:48,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:48,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:48,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:48,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:48,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-28 11:57:48,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:48,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:48,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:57:48,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 11:57:48,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490290591] [2020-10-28 11:57:48,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:48,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:48,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925943683] [2020-10-28 11:57:48,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:48,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:48,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:48,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:48,601 INFO L87 Difference]: Start difference. First operand 1942 states and 2312 transitions. Second operand 7 states. [2020-10-28 11:57:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:50,560 INFO L93 Difference]: Finished difference Result 3596 states and 4317 transitions. [2020-10-28 11:57:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:57:50,561 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-28 11:57:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:50,572 INFO L225 Difference]: With dead ends: 3596 [2020-10-28 11:57:50,573 INFO L226 Difference]: Without dead ends: 1803 [2020-10-28 11:57:50,579 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:57:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-10-28 11:57:50,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1791. [2020-10-28 11:57:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1791 states. [2020-10-28 11:57:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 1997 transitions. [2020-10-28 11:57:50,649 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 1997 transitions. Word has length 270 [2020-10-28 11:57:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:50,650 INFO L481 AbstractCegarLoop]: Abstraction has 1791 states and 1997 transitions. [2020-10-28 11:57:50,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:57:50,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 1997 transitions. [2020-10-28 11:57:50,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-28 11:57:50,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:50,657 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:57:50,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 11:57:50,658 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:50,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1670676710, now seen corresponding path program 1 times [2020-10-28 11:57:50,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:50,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669293073] [2020-10-28 11:57:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:50,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-28 11:57:51,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 428 [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-28 11:57:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 11:57:51,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:51,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:51,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:51,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:51,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:51,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:51,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 11:57:51,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 11:57:51,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 11:57:51,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669293073] [2020-10-28 11:57:51,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:51,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:57:51,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277880124] [2020-10-28 11:57:51,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:57:51,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:51,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:57:51,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:57:51,567 INFO L87 Difference]: Start difference. First operand 1791 states and 1997 transitions. Second operand 5 states. [2020-10-28 11:57:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:57:53,112 INFO L93 Difference]: Finished difference Result 3727 states and 4208 transitions. [2020-10-28 11:57:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:57:53,113 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 273 [2020-10-28 11:57:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:57:53,125 INFO L225 Difference]: With dead ends: 3727 [2020-10-28 11:57:53,125 INFO L226 Difference]: Without dead ends: 2085 [2020-10-28 11:57:53,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:57:53,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2020-10-28 11:57:53,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2079. [2020-10-28 11:57:53,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2079 states. [2020-10-28 11:57:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2315 transitions. [2020-10-28 11:57:53,193 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2315 transitions. Word has length 273 [2020-10-28 11:57:53,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:57:53,194 INFO L481 AbstractCegarLoop]: Abstraction has 2079 states and 2315 transitions. [2020-10-28 11:57:53,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:57:53,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2315 transitions. [2020-10-28 11:57:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-28 11:57:53,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:57:53,205 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 11:57:53,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 11:57:53,205 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:57:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:57:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2133487265, now seen corresponding path program 1 times [2020-10-28 11:57:53,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:57:53,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936469476] [2020-10-28 11:57:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:57:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:53,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:53,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:54,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-28 11:57:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 11:57:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:57:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:58,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:58,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:57:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:57:58,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-28 11:57:58,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:57:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:57:58,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:57:58,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:57:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:57:58,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:57:58,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:58,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 11:57:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:57:58,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:57:58,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:57:58,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:57:58,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:57:58,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:57:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 283 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-28 11:57:59,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936469476] [2020-10-28 11:57:59,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:57:59,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:57:59,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833658782] [2020-10-28 11:57:59,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:57:59,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:57:59,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:57:59,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:57:59,004 INFO L87 Difference]: Start difference. First operand 2079 states and 2315 transitions. Second operand 7 states. [2020-10-28 11:58:01,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:01,176 INFO L93 Difference]: Finished difference Result 4025 states and 4490 transitions. [2020-10-28 11:58:01,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:58:01,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-28 11:58:01,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:01,189 INFO L225 Difference]: With dead ends: 4025 [2020-10-28 11:58:01,190 INFO L226 Difference]: Without dead ends: 2095 [2020-10-28 11:58:01,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 11:58:01,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2020-10-28 11:58:01,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2083. [2020-10-28 11:58:01,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-28 11:58:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2306 transitions. [2020-10-28 11:58:01,264 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2306 transitions. Word has length 357 [2020-10-28 11:58:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:01,265 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2306 transitions. [2020-10-28 11:58:01,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2306 transitions. [2020-10-28 11:58:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-28 11:58:01,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:01,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 11:58:01,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 11:58:01,276 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:01,277 INFO L82 PathProgramCache]: Analyzing trace with hash -797300411, now seen corresponding path program 1 times [2020-10-28 11:58:01,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:01,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037191105] [2020-10-28 11:58:01,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:01,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:01,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:01,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:03,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:03,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2633 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-28 11:58:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:58:03,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:04,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:04,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:04,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:04,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:04,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:58:04,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:04,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:04,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:58:04,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:04,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:04,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:04,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 11:58:04,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:04,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:04,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:04,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:04,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:04,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:58:04,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-28 11:58:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:04,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:58:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:04,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:04,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:58:04,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:04,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-28 11:58:04,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:04,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:04,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:58:04,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:04,624 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-28 11:58:04,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037191105] [2020-10-28 11:58:04,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:04,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:04,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381946496] [2020-10-28 11:58:04,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:04,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:04,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:04,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:04,626 INFO L87 Difference]: Start difference. First operand 2083 states and 2306 transitions. Second operand 7 states. [2020-10-28 11:58:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:06,917 INFO L93 Difference]: Finished difference Result 4905 states and 5493 transitions. [2020-10-28 11:58:06,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:58:06,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 376 [2020-10-28 11:58:06,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:06,932 INFO L225 Difference]: With dead ends: 4905 [2020-10-28 11:58:06,932 INFO L226 Difference]: Without dead ends: 2971 [2020-10-28 11:58:06,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:58:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2020-10-28 11:58:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2669. [2020-10-28 11:58:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2669 states. [2020-10-28 11:58:07,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 2936 transitions. [2020-10-28 11:58:07,018 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 2936 transitions. Word has length 376 [2020-10-28 11:58:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:07,019 INFO L481 AbstractCegarLoop]: Abstraction has 2669 states and 2936 transitions. [2020-10-28 11:58:07,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 2936 transitions. [2020-10-28 11:58:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-28 11:58:07,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:07,031 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:07,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 11:58:07,032 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:07,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1945543461, now seen corresponding path program 1 times [2020-10-28 11:58:07,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:07,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657099487] [2020-10-28 11:58:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:07,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:07,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:07,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:08,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 401 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1601 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:08,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-28 11:58:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 11:58:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:08,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:08,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:08,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:08,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:08,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:08,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:08,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:08,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:08,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:08,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:58:08,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:08,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:08,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:08,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:58:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-28 11:58:09,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:09,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-28 11:58:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:09,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:09,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:09,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:58:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-28 11:58:09,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657099487] [2020-10-28 11:58:09,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:09,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:58:09,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563372804] [2020-10-28 11:58:09,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:58:09,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:09,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:58:09,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:58:09,282 INFO L87 Difference]: Start difference. First operand 2669 states and 2936 transitions. Second operand 7 states. [2020-10-28 11:58:11,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:11,332 INFO L93 Difference]: Finished difference Result 6063 states and 6733 transitions. [2020-10-28 11:58:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:58:11,340 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 385 [2020-10-28 11:58:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:11,356 INFO L225 Difference]: With dead ends: 6063 [2020-10-28 11:58:11,357 INFO L226 Difference]: Without dead ends: 3543 [2020-10-28 11:58:11,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:58:11,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2020-10-28 11:58:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3249. [2020-10-28 11:58:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3249 states. [2020-10-28 11:58:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 3601 transitions. [2020-10-28 11:58:11,452 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 3601 transitions. Word has length 385 [2020-10-28 11:58:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:11,453 INFO L481 AbstractCegarLoop]: Abstraction has 3249 states and 3601 transitions. [2020-10-28 11:58:11,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:58:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 3601 transitions. [2020-10-28 11:58:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-28 11:58:11,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:11,466 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:58:11,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 11:58:11,467 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:11,467 INFO L82 PathProgramCache]: Analyzing trace with hash 140833079, now seen corresponding path program 1 times [2020-10-28 11:58:11,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:11,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942342807] [2020-10-28 11:58:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:11,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:11,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 429 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 11:58:12,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:12,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:58:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:12,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:12,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:58:12,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:12,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:58:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:12,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:12,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:12,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-28 11:58:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:12,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:12,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:58:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:12,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:58:12,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:12,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-28 11:58:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:12,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:58:12,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 11:58:12,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:58:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 198 proven. 3 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-28 11:58:12,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942342807] [2020-10-28 11:58:12,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:58:12,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:58:12,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938515822] [2020-10-28 11:58:12,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:58:12,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:58:12,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:58:12,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:58:12,451 INFO L87 Difference]: Start difference. First operand 3249 states and 3601 transitions. Second operand 5 states. [2020-10-28 11:58:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:58:14,085 INFO L93 Difference]: Finished difference Result 6493 states and 7202 transitions. [2020-10-28 11:58:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:58:14,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2020-10-28 11:58:14,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:58:14,087 INFO L225 Difference]: With dead ends: 6493 [2020-10-28 11:58:14,087 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 11:58:14,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:58:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 11:58:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 11:58:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 11:58:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 11:58:14,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 413 [2020-10-28 11:58:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:58:14,099 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 11:58:14,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:58:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 11:58:14,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 11:58:14,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 11:58:14,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 11:58:14,416 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 123 [2020-10-28 11:58:15,182 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 123 [2020-10-28 11:58:15,635 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 39 [2020-10-28 11:58:16,477 WARN L193 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 49 [2020-10-28 11:58:16,805 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-28 11:58:17,185 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 39 [2020-10-28 11:58:17,190 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 11:58:17,191 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 11:58:17,191 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 11:58:17,191 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 11:58:17,191 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:17,191 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 11:58:17,192 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 11:58:17,193 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 11:58:17,193 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 11:58:17,193 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 11:58:17,193 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 11:58:17,193 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,194 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L270 CegarLoopResult]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (not (= 9 |old(~a19~0)|))) (.cse2 (not (= |old(~a10~0)| 1))) (.cse3 (not (<= 10 |old(~a19~0)|))) (.cse1 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 .cse1) (or (not (<= (+ |old(~a1~0)| 75821) 0)) .cse1) (not (<= 3 |old(~a10~0)|)) (or .cse2 (not (= 7 |old(~a19~0)|))) (or .cse0 .cse2) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|)) (or .cse3 .cse2) (or .cse3 .cse1))) [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L204-1(line 204) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 11:58:17,195 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,196 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 11:58:17,197 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 11:58:17,198 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,199 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 11:58:17,200 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,201 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 11:58:17,202 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 11:58:17,203 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,204 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 11:58:17,205 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,206 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse4 (not (= 9 |old(~a19~0)|))) (.cse2 (not (= 0 |old(~a10~0)|))) (.cse0 (not (<= 10 |old(~a19~0)|))) (.cse3 (not (= |old(~a10~0)| 1))) (.cse1 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= (+ |old(~a1~0)| 75821) 0)) .cse2) (or .cse1 (not (= 8 |old(~a19~0)|))) (or .cse3 .cse1 (not (= 7 |old(~a19~0)|))) (or .cse1 .cse4 .cse3) (or .cse1 (not (= 2 |old(~a10~0)|))) (or .cse1 (not (<= 3 |old(~a10~0)|))) (or .cse4 .cse1 .cse2) (or .cse0 .cse3 .cse1))) [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 11:58:17,207 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 11:58:17,208 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 11:58:17,209 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,210 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 11:58:17,211 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:58:17,212 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:58:17,213 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 11:58:17,213 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 11:58:17,213 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:58:17,213 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 11:58:17,213 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:17,213 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse1 (= ~a19~0 9)) (.cse0 (= ~a10~0 0)) (.cse2 (= ~a10~0 1)) (.cse3 (<= 10 ~a19~0))) (or (= ~a19~0 8) (<= 3 ~a10~0) (and .cse0 .cse1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 2) (and .cse2 .cse1) (and .cse0 (<= (+ ~a1~0 75821) 0)) (and .cse2 (= 7 ~a19~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse3) (and .cse2 .cse3) (not (= 23 |old(~a1~0)|)))) [2020-10-28 11:58:17,213 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 11:58:17,214 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 11:58:17,214 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse1 (= ~a19~0 9)) (.cse0 (= ~a10~0 0)) (.cse2 (= ~a10~0 1)) (.cse3 (<= 10 ~a19~0))) (or (= ~a19~0 8) (<= 3 ~a10~0) (and .cse0 .cse1) (not (= 9 |old(~a19~0)|)) (= ~a10~0 2) (and .cse2 .cse1) (and .cse0 (<= (+ ~a1~0 75821) 0)) (and .cse2 (= 7 ~a19~0)) (not (= 0 |old(~a10~0)|)) (and .cse0 .cse3) (and .cse2 .cse3) (not (= 23 |old(~a1~0)|)))) [2020-10-28 11:58:17,214 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:58:17,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:58:17 BoogieIcfgContainer [2020-10-28 11:58:17,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 11:58:17,239 INFO L168 Benchmark]: Toolchain (without parser) took 73675.04 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 124.4 MB in the beginning and 814.1 MB in the end (delta: -689.8 MB). Peak memory consumption was 607.8 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:17,240 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 11:58:17,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.25 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 128.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:17,241 INFO L168 Benchmark]: Boogie Preprocessor took 113.90 ms. Allocated memory is still 151.0 MB. Free memory was 128.8 MB in the beginning and 124.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:17,241 INFO L168 Benchmark]: RCFGBuilder took 1599.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 102.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:17,242 INFO L168 Benchmark]: TraceAbstraction took 71227.81 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 102.1 MB in the beginning and 814.1 MB in the end (delta: -712.0 MB). Peak memory consumption was 584.0 MB. Max. memory is 8.0 GB. [2020-10-28 11:58:17,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 151.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 719.25 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 128.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 28.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.90 ms. Allocated memory is still 151.0 MB. Free memory was 128.8 MB in the beginning and 124.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1599.79 ms. Allocated memory is still 151.0 MB. Free memory was 124.0 MB in the beginning and 102.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 71227.81 ms. Allocated memory was 151.0 MB in the beginning and 1.0 GB in the end (delta: 867.2 MB). Free memory was 102.1 MB in the beginning and 814.1 MB in the end (delta: -712.0 MB). Peak memory consumption was 584.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((((a19 == 8 || 3 <= a10) || (a10 == 0 && a19 == 9)) || !(9 == \old(a19))) || a10 == 2) || (a10 == 1 && a19 == 9)) || (a10 == 0 && a1 + 75821 <= 0)) || (a10 == 1 && 7 == a19)) || !(0 == \old(a10))) || (a10 == 0 && 10 <= a19)) || (a10 == 1 && 10 <= a19)) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 68.0s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 27.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 4654 SDslu, 469 SDs, 0 SdLazy, 11970 SolverSat, 1226 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3249occurred 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: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 1119 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 318 PreInvPairs, 368 NumberOfFragments, 459 HoareAnnotationTreeSize, 318 FomulaSimplifications, 106003 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11198 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 37.3s InterpolantComputationTime, 3613 NumberOfCodeBlocks, 3613 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3599 ConstructedInterpolants, 0 QuantifiedInterpolants, 2388443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 3095/3406 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...