/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:33:53,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:33:53,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:33:53,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:33:53,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:33:53,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:33:53,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:33:53,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:33:53,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:33:53,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:33:53,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:33:53,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:33:53,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:33:53,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:33:53,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:33:53,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:33:53,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:33:53,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:33:53,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:33:53,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:33:53,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:33:53,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:33:53,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:33:53,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:33:53,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:33:53,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:33:53,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:33:53,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:33:53,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:33:53,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:33:53,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:33:53,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:33:53,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:33:53,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:33:53,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:33:53,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:33:53,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:33:53,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:33:53,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:33:53,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:33:53,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:33:53,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 22:33:53,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:33:53,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:33:53,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:33:53,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:33:53,794 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:33:53,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:33:53,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:33:53,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:33:53,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:33:53,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:33:53,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:33:53,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:33:53,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:33:53,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:33:53,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:33:53,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:33:53,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:33:53,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:33:53,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:33:53,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:33:53,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:33:53,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:33:53,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:33:53,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:33:53,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:33:53,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:33:53,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:33:53,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:33:53,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:33:53,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:33:54,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:33:54,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:33:54,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:33:54,374 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:33:54,375 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:33:54,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2020-10-26 22:33:54,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce2cb1389/e1aca22f3d01454d9623280e27505e1d/FLAG413dae23a [2020-10-26 22:33:55,332 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:33:55,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label56.c [2020-10-26 22:33:55,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce2cb1389/e1aca22f3d01454d9623280e27505e1d/FLAG413dae23a [2020-10-26 22:33:55,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce2cb1389/e1aca22f3d01454d9623280e27505e1d [2020-10-26 22:33:55,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:33:55,538 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:33:55,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:55,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:33:55,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:33:55,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:55" (1/1) ... [2020-10-26 22:33:55,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dca2923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:55, skipping insertion in model container [2020-10-26 22:33:55,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:33:55" (1/1) ... [2020-10-26 22:33:55,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:33:55,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:33:56,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:56,055 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:33:56,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:33:56,305 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:33:56,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56 WrapperNode [2020-10-26 22:33:56,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:33:56,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:33:56,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:33:56,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:33:56,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... [2020-10-26 22:33:56,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:33:56,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:33:56,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:33:56,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:33:56,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:33:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:33:56,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:33:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:33:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:33:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:33:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:33:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:33:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:33:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:33:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:33:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:33:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:33:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:33:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:33:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:33:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:33:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:33:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:33:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:33:58,068 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:33:58,068 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:33:58,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:58 BoogieIcfgContainer [2020-10-26 22:33:58,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:33:58,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:33:58,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:33:58,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:33:58,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:33:55" (1/3) ... [2020-10-26 22:33:58,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5cf3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:58, skipping insertion in model container [2020-10-26 22:33:58,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:33:56" (2/3) ... [2020-10-26 22:33:58,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c5cf3aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:33:58, skipping insertion in model container [2020-10-26 22:33:58,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:33:58" (3/3) ... [2020-10-26 22:33:58,080 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label56.c [2020-10-26 22:33:58,093 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:33:58,098 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:33:58,112 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:33:58,143 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:33:58,144 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:33:58,144 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:33:58,144 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:33:58,144 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:33:58,144 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:33:58,144 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:33:58,145 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:33:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-26 22:33:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 22:33:58,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:33:58,178 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] [2020-10-26 22:33:58,178 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:33:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:33:58,185 INFO L82 PathProgramCache]: Analyzing trace with hash 830456196, now seen corresponding path program 1 times [2020-10-26 22:33:58,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:33:58,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295766336] [2020-10-26 22:33:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:33:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:58,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:58,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:58,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-26 22:33:58,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-26 22:33:58,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:33:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:33:58,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 22:33:58,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 22:33:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:33:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:33:59,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:33:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:33:59,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:33:59,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:33:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-26 22:33:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:33:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:33:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:33:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:33:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:33:59,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:33:59,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295766336] [2020-10-26 22:33:59,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:33:59,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:33:59,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53319280] [2020-10-26 22:33:59,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:33:59,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:33:59,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:33:59,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:33:59,291 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-26 22:34:01,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:01,096 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-26 22:34:01,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:01,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-26 22:34:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:01,128 INFO L225 Difference]: With dead ends: 586 [2020-10-26 22:34:01,128 INFO L226 Difference]: Without dead ends: 303 [2020-10-26 22:34:01,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-26 22:34:01,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-26 22:34:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-26 22:34:01,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-26 22:34:01,219 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 30 [2020-10-26 22:34:01,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:01,220 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-26 22:34:01,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:34:01,220 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-26 22:34:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-26 22:34:01,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:01,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:01,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:34:01,226 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:01,227 INFO L82 PathProgramCache]: Analyzing trace with hash 183930344, now seen corresponding path program 1 times [2020-10-26 22:34:01,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:01,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825474244] [2020-10-26 22:34:01,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:01,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:01,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:02,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-26 22:34:02,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:02,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 881 [2020-10-26 22:34:02,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 22:34:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:34:02,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-26 22:34:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:02,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:02,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:02,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:34:02,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:02,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:34:02,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:02,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:02,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:02,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:34:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:02,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-26 22:34:02,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:34:02,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 22:34:02,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825474244] [2020-10-26 22:34:02,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:02,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:34:02,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172226457] [2020-10-26 22:34:02,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:34:02,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:02,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:34:02,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:02,673 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 6 states. [2020-10-26 22:34:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:04,483 INFO L93 Difference]: Finished difference Result 606 states and 830 transitions. [2020-10-26 22:34:04,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:34:04,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2020-10-26 22:34:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:04,492 INFO L225 Difference]: With dead ends: 606 [2020-10-26 22:34:04,492 INFO L226 Difference]: Without dead ends: 603 [2020-10-26 22:34:04,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-10-26 22:34:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 444. [2020-10-26 22:34:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-26 22:34:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 621 transitions. [2020-10-26 22:34:04,568 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 621 transitions. Word has length 100 [2020-10-26 22:34:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:04,569 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 621 transitions. [2020-10-26 22:34:04,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:34:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 621 transitions. [2020-10-26 22:34:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-26 22:34:04,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:04,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:04,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:34:04,574 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:04,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:04,575 INFO L82 PathProgramCache]: Analyzing trace with hash -72806860, now seen corresponding path program 1 times [2020-10-26 22:34:04,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:04,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496385464] [2020-10-26 22:34:04,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:04,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:04,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:05,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-26 22:34:05,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:34:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1313 [2020-10-26 22:34:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:05,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:34:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:34:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:06,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:06,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:06,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 22:34:06,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:06,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:06,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:34:06,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:06,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:06,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:06,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:34:06,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:06,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-26 22:34:06,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:06,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:06,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:34:06,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:34:06,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496385464] [2020-10-26 22:34:06,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:34:06,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:34:06,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778257580] [2020-10-26 22:34:06,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:06,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:06,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:06,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:06,390 INFO L87 Difference]: Start difference. First operand 444 states and 621 transitions. Second operand 7 states. [2020-10-26 22:34:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:08,625 INFO L93 Difference]: Finished difference Result 1236 states and 1850 transitions. [2020-10-26 22:34:08,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:34:08,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-26 22:34:08,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:08,641 INFO L225 Difference]: With dead ends: 1236 [2020-10-26 22:34:08,642 INFO L226 Difference]: Without dead ends: 798 [2020-10-26 22:34:08,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:34:08,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-10-26 22:34:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 744. [2020-10-26 22:34:08,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-26 22:34:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1003 transitions. [2020-10-26 22:34:08,723 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1003 transitions. Word has length 103 [2020-10-26 22:34:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:08,725 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1003 transitions. [2020-10-26 22:34:08,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1003 transitions. [2020-10-26 22:34:08,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-26 22:34:08,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:08,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:08,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:34:08,738 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:08,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:08,738 INFO L82 PathProgramCache]: Analyzing trace with hash -339437784, now seen corresponding path program 1 times [2020-10-26 22:34:08,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:08,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443391730] [2020-10-26 22:34:08,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:08,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:08,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-26 22:34:09,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 22:34:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:09,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:09,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:09,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:09,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:34:09,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:09,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:09,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:09,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:09,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:09,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:34:09,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:34:09,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443391730] [2020-10-26 22:34:09,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:09,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:34:09,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511283575] [2020-10-26 22:34:09,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:34:09,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:09,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:34:09,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:09,531 INFO L87 Difference]: Start difference. First operand 744 states and 1003 transitions. Second operand 5 states. [2020-10-26 22:34:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:11,230 INFO L93 Difference]: Finished difference Result 1782 states and 2483 transitions. [2020-10-26 22:34:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:11,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-26 22:34:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:11,243 INFO L225 Difference]: With dead ends: 1782 [2020-10-26 22:34:11,244 INFO L226 Difference]: Without dead ends: 1044 [2020-10-26 22:34:11,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-26 22:34:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 895. [2020-10-26 22:34:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-26 22:34:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1163 transitions. [2020-10-26 22:34:11,301 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1163 transitions. Word has length 109 [2020-10-26 22:34:11,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:11,302 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1163 transitions. [2020-10-26 22:34:11,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:34:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1163 transitions. [2020-10-26 22:34:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-26 22:34:11,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:11,310 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:11,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:34:11,311 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:11,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:11,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1651805936, now seen corresponding path program 1 times [2020-10-26 22:34:11,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:11,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [979292317] [2020-10-26 22:34:11,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:11,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:11,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:11,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:12,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-26 22:34:13,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1747 [2020-10-26 22:34:13,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-26 22:34:13,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 22:34:13,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:13,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:13,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-26 22:34:13,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:34:13,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-26 22:34:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:13,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:13,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:34:13,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:13,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:34:13,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:13,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:34:13,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:13,601 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:13,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [979292317] [2020-10-26 22:34:13,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:13,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:13,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819986320] [2020-10-26 22:34:13,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:13,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:13,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:13,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:13,605 INFO L87 Difference]: Start difference. First operand 895 states and 1163 transitions. Second operand 8 states. [2020-10-26 22:34:16,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:16,614 INFO L93 Difference]: Finished difference Result 2090 states and 2746 transitions. [2020-10-26 22:34:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:34:16,615 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-26 22:34:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:16,622 INFO L225 Difference]: With dead ends: 2090 [2020-10-26 22:34:16,622 INFO L226 Difference]: Without dead ends: 907 [2020-10-26 22:34:16,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 22:34:16,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-10-26 22:34:16,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 887. [2020-10-26 22:34:16,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-10-26 22:34:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1040 transitions. [2020-10-26 22:34:16,659 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1040 transitions. Word has length 182 [2020-10-26 22:34:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:16,659 INFO L481 AbstractCegarLoop]: Abstraction has 887 states and 1040 transitions. [2020-10-26 22:34:16,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1040 transitions. [2020-10-26 22:34:16,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-26 22:34:16,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:16,663 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:16,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:34:16,663 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1971568604, now seen corresponding path program 1 times [2020-10-26 22:34:16,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:16,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179216730] [2020-10-26 22:34:16,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:16,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:16,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:17,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:17,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:17,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:17,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-26 22:34:17,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:17,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1238 [2020-10-26 22:34:17,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:17,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:34:17,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:34:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:18,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:18,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:18,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:18,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:18,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:18,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:34:18,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:18,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:18,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:18,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:18,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:18,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:34:18,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:18,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:34:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:18,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:18,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:18,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:18,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:18,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:18,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179216730] [2020-10-26 22:34:18,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:18,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:18,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86375639] [2020-10-26 22:34:18,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:18,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:18,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:18,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:18,440 INFO L87 Difference]: Start difference. First operand 887 states and 1040 transitions. Second operand 7 states. [2020-10-26 22:34:20,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:20,194 INFO L93 Difference]: Finished difference Result 2092 states and 2477 transitions. [2020-10-26 22:34:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:34:20,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-10-26 22:34:20,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:20,203 INFO L225 Difference]: With dead ends: 2092 [2020-10-26 22:34:20,203 INFO L226 Difference]: Without dead ends: 1060 [2020-10-26 22:34:20,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:34:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-26 22:34:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1040. [2020-10-26 22:34:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-10-26 22:34:20,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1224 transitions. [2020-10-26 22:34:20,253 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1224 transitions. Word has length 190 [2020-10-26 22:34:20,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:20,254 INFO L481 AbstractCegarLoop]: Abstraction has 1040 states and 1224 transitions. [2020-10-26 22:34:20,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:20,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1224 transitions. [2020-10-26 22:34:20,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-26 22:34:20,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:20,258 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:34:20,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:34:20,259 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:20,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:20,259 INFO L82 PathProgramCache]: Analyzing trace with hash -933099160, now seen corresponding path program 1 times [2020-10-26 22:34:20,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:20,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639365613] [2020-10-26 22:34:20,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:20,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:20,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:21,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:22,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:24,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:24,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-26 22:34:24,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:34:24,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4462 [2020-10-26 22:34:24,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:24,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:24,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:34:24,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:34:24,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:24,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:24,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:24,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:24,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:24,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:24,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 22:34:24,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:34:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:24,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:24,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:25,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:25,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:34:25,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:34:25,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:25,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-26 22:34:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:25,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:25,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:25,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-26 22:34:25,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:34:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:25,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 44 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:34:25,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639365613] [2020-10-26 22:34:25,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:25,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:25,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168877532] [2020-10-26 22:34:25,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:25,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:25,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:25,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:25,304 INFO L87 Difference]: Start difference. First operand 1040 states and 1224 transitions. Second operand 7 states. [2020-10-26 22:34:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:27,211 INFO L93 Difference]: Finished difference Result 2390 states and 2799 transitions. [2020-10-26 22:34:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:27,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-26 22:34:27,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:27,220 INFO L225 Difference]: With dead ends: 2390 [2020-10-26 22:34:27,220 INFO L226 Difference]: Without dead ends: 1356 [2020-10-26 22:34:27,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:34:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2020-10-26 22:34:27,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1338. [2020-10-26 22:34:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1338 states. [2020-10-26 22:34:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1545 transitions. [2020-10-26 22:34:27,272 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1545 transitions. Word has length 197 [2020-10-26 22:34:27,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:27,272 INFO L481 AbstractCegarLoop]: Abstraction has 1338 states and 1545 transitions. [2020-10-26 22:34:27,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1545 transitions. [2020-10-26 22:34:27,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-26 22:34:27,277 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:27,278 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:27,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:34:27,278 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:27,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:27,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1046832696, now seen corresponding path program 1 times [2020-10-26 22:34:27,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:27,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768370793] [2020-10-26 22:34:27,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:27,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:28,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1435 [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:34:28,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-26 22:34:28,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 22:34:28,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:29,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:29,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:29,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:29,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 22:34:29,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:29,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:29,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:29,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:34:29,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 22:34:29,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:29,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:29,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-26 22:34:29,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:34:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:29,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:29,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:30,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:30,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:30,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:30,312 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:30,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768370793] [2020-10-26 22:34:30,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:30,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:30,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077575166] [2020-10-26 22:34:30,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:30,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:30,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:30,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:30,315 INFO L87 Difference]: Start difference. First operand 1338 states and 1545 transitions. Second operand 8 states. [2020-10-26 22:34:32,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:32,570 INFO L93 Difference]: Finished difference Result 2694 states and 3149 transitions. [2020-10-26 22:34:32,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:34:32,571 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2020-10-26 22:34:32,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:32,579 INFO L225 Difference]: With dead ends: 2694 [2020-10-26 22:34:32,579 INFO L226 Difference]: Without dead ends: 1505 [2020-10-26 22:34:32,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:34:32,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2020-10-26 22:34:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1489. [2020-10-26 22:34:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1489 states. [2020-10-26 22:34:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1707 transitions. [2020-10-26 22:34:32,635 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1707 transitions. Word has length 241 [2020-10-26 22:34:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:32,636 INFO L481 AbstractCegarLoop]: Abstraction has 1489 states and 1707 transitions. [2020-10-26 22:34:32,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1707 transitions. [2020-10-26 22:34:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-26 22:34:32,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:32,642 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:32,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:34:32,642 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1101750832, now seen corresponding path program 1 times [2020-10-26 22:34:32,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:32,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669476846] [2020-10-26 22:34:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:32,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:33,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:33,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-26 22:34:33,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:34,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:34,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:34,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:34,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:34,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:34,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:34,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:34,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:34,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:34,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:34,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:34,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:34:34,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:34,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-26 22:34:34,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:34,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:34:34,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:34:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:34:35,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669476846] [2020-10-26 22:34:35,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:35,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:34:35,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080963815] [2020-10-26 22:34:35,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:34:35,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:35,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:34:35,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:34:35,094 INFO L87 Difference]: Start difference. First operand 1489 states and 1707 transitions. Second operand 8 states. [2020-10-26 22:34:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:38,312 INFO L93 Difference]: Finished difference Result 4744 states and 5606 transitions. [2020-10-26 22:34:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:34:38,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 286 [2020-10-26 22:34:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:38,332 INFO L225 Difference]: With dead ends: 4744 [2020-10-26 22:34:38,332 INFO L226 Difference]: Without dead ends: 3257 [2020-10-26 22:34:38,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-26 22:34:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2020-10-26 22:34:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2818. [2020-10-26 22:34:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2818 states. [2020-10-26 22:34:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3302 transitions. [2020-10-26 22:34:38,455 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3302 transitions. Word has length 286 [2020-10-26 22:34:38,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:38,456 INFO L481 AbstractCegarLoop]: Abstraction has 2818 states and 3302 transitions. [2020-10-26 22:34:38,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:34:38,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3302 transitions. [2020-10-26 22:34:38,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-26 22:34:38,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:38,464 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:38,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:34:38,464 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:38,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1913101964, now seen corresponding path program 1 times [2020-10-26 22:34:38,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:38,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42252594] [2020-10-26 22:34:38,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:38,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:38,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:38,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:40,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:43,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:43,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 328 [2020-10-26 22:34:43,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:34:43,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-26 22:34:43,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:34:43,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:34:43,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:43,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:43,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:43,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:43,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:43,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:43,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:43,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 22:34:43,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:43,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:34:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:43,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:44,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:44,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:34:44,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:44,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-26 22:34:44,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:44,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:34:44,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:44,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-26 22:34:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:44,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:44,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:44,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:44,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 22:34:44,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:34:44,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:44,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 144 proven. 76 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-26 22:34:44,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42252594] [2020-10-26 22:34:44,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:44,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:44,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896258172] [2020-10-26 22:34:44,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:44,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:44,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:44,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:44,389 INFO L87 Difference]: Start difference. First operand 2818 states and 3302 transitions. Second operand 7 states. [2020-10-26 22:34:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:46,664 INFO L93 Difference]: Finished difference Result 6371 states and 7591 transitions. [2020-10-26 22:34:46,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:46,667 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 312 [2020-10-26 22:34:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:46,685 INFO L225 Difference]: With dead ends: 6371 [2020-10-26 22:34:46,686 INFO L226 Difference]: Without dead ends: 3557 [2020-10-26 22:34:46,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:34:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2020-10-26 22:34:46,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3557. [2020-10-26 22:34:46,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3557 states. [2020-10-26 22:34:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3557 states to 3557 states and 4129 transitions. [2020-10-26 22:34:46,802 INFO L78 Accepts]: Start accepts. Automaton has 3557 states and 4129 transitions. Word has length 312 [2020-10-26 22:34:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:46,803 INFO L481 AbstractCegarLoop]: Abstraction has 3557 states and 4129 transitions. [2020-10-26 22:34:46,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3557 states and 4129 transitions. [2020-10-26 22:34:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-26 22:34:46,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:46,813 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:46,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:34:46,813 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:46,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:46,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1980871940, now seen corresponding path program 1 times [2020-10-26 22:34:46,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:46,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1190370744] [2020-10-26 22:34:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:46,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:47,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:48,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:48,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-26 22:34:48,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:48,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1707 [2020-10-26 22:34:48,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:34:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:34:48,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:34:48,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:48,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:48,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:48,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:48,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:48,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:48,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:48,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:48,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-26 22:34:48,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:48,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:48,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:48,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:48,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:34:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-26 22:34:48,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:34:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:48,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:34:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:48,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:49,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:49,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:49,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:34:49,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:49,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:49,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 207 proven. 23 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-26 22:34:49,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1190370744] [2020-10-26 22:34:49,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:49,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:49,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258474842] [2020-10-26 22:34:49,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:49,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:49,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:49,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:49,247 INFO L87 Difference]: Start difference. First operand 3557 states and 4129 transitions. Second operand 7 states. [2020-10-26 22:34:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:51,065 INFO L93 Difference]: Finished difference Result 7406 states and 8667 transitions. [2020-10-26 22:34:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:34:51,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-26 22:34:51,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:51,097 INFO L225 Difference]: With dead ends: 7406 [2020-10-26 22:34:51,097 INFO L226 Difference]: Without dead ends: 3851 [2020-10-26 22:34:51,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:34:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2020-10-26 22:34:51,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3847. [2020-10-26 22:34:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3847 states. [2020-10-26 22:34:51,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 4508 transitions. [2020-10-26 22:34:51,227 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 4508 transitions. Word has length 331 [2020-10-26 22:34:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:51,228 INFO L481 AbstractCegarLoop]: Abstraction has 3847 states and 4508 transitions. [2020-10-26 22:34:51,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:51,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 4508 transitions. [2020-10-26 22:34:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-26 22:34:51,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:51,239 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:51,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:34:51,240 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:51,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:51,241 INFO L82 PathProgramCache]: Analyzing trace with hash 271872496, now seen corresponding path program 1 times [2020-10-26 22:34:51,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:51,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770839065] [2020-10-26 22:34:51,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:51,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:51,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:52,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:53,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:53,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-26 22:34:53,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:34:53,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2580 [2020-10-26 22:34:53,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 233 [2020-10-26 22:34:53,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:34:53,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:54,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:54,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:54,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:54,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:54,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:34:54,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:54,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:54,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:54,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:54,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:54,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:34:54,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 22:34:54,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:54,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:34:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:54,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:54,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:54,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:54,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-26 22:34:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:54,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:34:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:54,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:54,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:54,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:34:54,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:54,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-26 22:34:54,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:34:54,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:34:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 242 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-26 22:34:54,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770839065] [2020-10-26 22:34:54,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:54,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:34:54,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804466197] [2020-10-26 22:34:54,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:34:54,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:54,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:34:54,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:34:54,580 INFO L87 Difference]: Start difference. First operand 3847 states and 4508 transitions. Second operand 7 states. [2020-10-26 22:34:56,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:56,800 INFO L93 Difference]: Finished difference Result 8856 states and 10456 transitions. [2020-10-26 22:34:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:34:56,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 341 [2020-10-26 22:34:56,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:56,827 INFO L225 Difference]: With dead ends: 8856 [2020-10-26 22:34:56,827 INFO L226 Difference]: Without dead ends: 5158 [2020-10-26 22:34:56,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:34:56,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5158 states. [2020-10-26 22:34:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5158 to 5007. [2020-10-26 22:34:56,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5007 states. [2020-10-26 22:34:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5007 states to 5007 states and 5851 transitions. [2020-10-26 22:34:56,990 INFO L78 Accepts]: Start accepts. Automaton has 5007 states and 5851 transitions. Word has length 341 [2020-10-26 22:34:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:34:56,991 INFO L481 AbstractCegarLoop]: Abstraction has 5007 states and 5851 transitions. [2020-10-26 22:34:56,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:34:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5007 states and 5851 transitions. [2020-10-26 22:34:57,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-26 22:34:57,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:34:57,003 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:34:57,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:34:57,003 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:34:57,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:34:57,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1032547316, now seen corresponding path program 1 times [2020-10-26 22:34:57,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:34:57,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064232204] [2020-10-26 22:34:57,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:34:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:57,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1130 [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:34:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 328 [2020-10-26 22:34:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 22:34:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:34:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:34:58,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:34:58,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:58,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:58,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:34:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:34:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:34:58,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:34:58,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:34:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:58,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:34:58,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-26 22:34:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:34:58,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:34:58,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:34:58,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-26 22:34:58,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:34:58,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-26 22:34:58,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:34:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:34:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:34:58,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-26 22:34:58,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:34:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-26 22:34:58,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064232204] [2020-10-26 22:34:58,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:34:58,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:34:58,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778040664] [2020-10-26 22:34:58,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:34:58,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:34:58,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:34:58,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:34:58,860 INFO L87 Difference]: Start difference. First operand 5007 states and 5851 transitions. Second operand 5 states. [2020-10-26 22:34:59,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:34:59,853 INFO L93 Difference]: Finished difference Result 5159 states and 6004 transitions. [2020-10-26 22:34:59,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:34:59,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2020-10-26 22:34:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:34:59,888 INFO L225 Difference]: With dead ends: 5159 [2020-10-26 22:34:59,889 INFO L226 Difference]: Without dead ends: 5005 [2020-10-26 22:34:59,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:34:59,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2020-10-26 22:35:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 5005. [2020-10-26 22:35:00,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5005 states. [2020-10-26 22:35:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5005 states to 5005 states and 5842 transitions. [2020-10-26 22:35:00,053 INFO L78 Accepts]: Start accepts. Automaton has 5005 states and 5842 transitions. Word has length 344 [2020-10-26 22:35:00,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:00,054 INFO L481 AbstractCegarLoop]: Abstraction has 5005 states and 5842 transitions. [2020-10-26 22:35:00,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:35:00,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5005 states and 5842 transitions. [2020-10-26 22:35:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-26 22:35:00,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:00,068 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:00,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:35:00,068 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:00,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:00,069 INFO L82 PathProgramCache]: Analyzing trace with hash 872411476, now seen corresponding path program 1 times [2020-10-26 22:35:00,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:00,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456929931] [2020-10-26 22:35:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:00,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:00,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:00,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:01,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-26 22:35:01,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1405 [2020-10-26 22:35:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 242 [2020-10-26 22:35:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-26 22:35:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:01,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:01,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:01,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:01,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:01,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:01,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:01,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:01,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:01,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:35:01,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:01,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 22:35:01,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:01,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:01,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:01,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:35:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:01,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:01,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:01,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:35:01,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:35:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:01,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:35:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:02,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:02,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:35:02,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-26 22:35:02,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456929931] [2020-10-26 22:35:02,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:02,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:02,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243908521] [2020-10-26 22:35:02,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:02,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:02,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:02,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:02,286 INFO L87 Difference]: Start difference. First operand 5005 states and 5842 transitions. Second operand 7 states. [2020-10-26 22:35:04,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:04,178 INFO L93 Difference]: Finished difference Result 10729 states and 12688 transitions. [2020-10-26 22:35:04,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:04,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-26 22:35:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:04,198 INFO L225 Difference]: With dead ends: 10729 [2020-10-26 22:35:04,198 INFO L226 Difference]: Without dead ends: 5873 [2020-10-26 22:35:04,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5873 states. [2020-10-26 22:35:04,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5873 to 5865. [2020-10-26 22:35:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5865 states. [2020-10-26 22:35:04,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5865 states to 5865 states and 6937 transitions. [2020-10-26 22:35:04,355 INFO L78 Accepts]: Start accepts. Automaton has 5865 states and 6937 transitions. Word has length 350 [2020-10-26 22:35:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:04,356 INFO L481 AbstractCegarLoop]: Abstraction has 5865 states and 6937 transitions. [2020-10-26 22:35:04,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:04,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5865 states and 6937 transitions. [2020-10-26 22:35:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-26 22:35:04,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:04,367 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:04,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:35:04,368 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:04,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:04,368 INFO L82 PathProgramCache]: Analyzing trace with hash -7168288, now seen corresponding path program 1 times [2020-10-26 22:35:04,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:04,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010743191] [2020-10-26 22:35:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:04,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:04,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:06,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:06,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-26 22:35:06,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1750 [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 270 [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:35:06,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:06,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:06,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:06,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:06,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:06,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:06,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:06,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:35:06,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:06,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:35:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:06,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-26 22:35:06,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 22:35:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:06,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-10-26 22:35:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:06,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:06,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:35:06,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 220 proven. 23 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-26 22:35:06,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010743191] [2020-10-26 22:35:06,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:06,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:35:06,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389427145] [2020-10-26 22:35:06,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:35:06,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:06,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:35:06,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:35:06,789 INFO L87 Difference]: Start difference. First operand 5865 states and 6937 transitions. Second operand 6 states. [2020-10-26 22:35:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:08,545 INFO L93 Difference]: Finished difference Result 12749 states and 15196 transitions. [2020-10-26 22:35:08,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:35:08,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 378 [2020-10-26 22:35:08,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:08,574 INFO L225 Difference]: With dead ends: 12749 [2020-10-26 22:35:08,575 INFO L226 Difference]: Without dead ends: 6888 [2020-10-26 22:35:08,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:08,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2020-10-26 22:35:08,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6888. [2020-10-26 22:35:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6888 states. [2020-10-26 22:35:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 8099 transitions. [2020-10-26 22:35:08,755 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 8099 transitions. Word has length 378 [2020-10-26 22:35:08,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:08,756 INFO L481 AbstractCegarLoop]: Abstraction has 6888 states and 8099 transitions. [2020-10-26 22:35:08,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:35:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 8099 transitions. [2020-10-26 22:35:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2020-10-26 22:35:08,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:08,773 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 22:35:08,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:35:08,773 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:08,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:08,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1528188936, now seen corresponding path program 1 times [2020-10-26 22:35:08,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:08,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898225669] [2020-10-26 22:35:08,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:08,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:09,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:10,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:10,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:12,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 433 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4101 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-26 22:35:12,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:13,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:13,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:13,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:13,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:35:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:13,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-26 22:35:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:35:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:35:13,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:35:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:13,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:13,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 22:35:13,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:13,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-26 22:35:13,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:13,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:35:13,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-26 22:35:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:13,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:13,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:13,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:35:13,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:13,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:13,765 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 270 proven. 173 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-26 22:35:13,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898225669] [2020-10-26 22:35:13,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:13,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:35:13,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014464927] [2020-10-26 22:35:13,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:35:13,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:13,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:35:13,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:13,770 INFO L87 Difference]: Start difference. First operand 6888 states and 8099 transitions. Second operand 8 states. [2020-10-26 22:35:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:16,500 INFO L93 Difference]: Finished difference Result 14064 states and 16505 transitions. [2020-10-26 22:35:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:35:16,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 415 [2020-10-26 22:35:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:16,525 INFO L225 Difference]: With dead ends: 14064 [2020-10-26 22:35:16,525 INFO L226 Difference]: Without dead ends: 7325 [2020-10-26 22:35:16,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:35:16,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-10-26 22:35:16,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 7039. [2020-10-26 22:35:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7039 states. [2020-10-26 22:35:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 8101 transitions. [2020-10-26 22:35:16,698 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 8101 transitions. Word has length 415 [2020-10-26 22:35:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:16,698 INFO L481 AbstractCegarLoop]: Abstraction has 7039 states and 8101 transitions. [2020-10-26 22:35:16,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:35:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 8101 transitions. [2020-10-26 22:35:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-10-26 22:35:16,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:16,716 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-26 22:35:16,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:35:16,716 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:16,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:16,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1973213996, now seen corresponding path program 1 times [2020-10-26 22:35:16,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:16,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099589003] [2020-10-26 22:35:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:16,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:17,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:17,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:18,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 451 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2007 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-26 22:35:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:18,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:18,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:18,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:18,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:18,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:18,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:19,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:35:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:19,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-26 22:35:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:19,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:19,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:19,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-26 22:35:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-26 22:35:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:19,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:19,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:19,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-26 22:35:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 324 proven. 24 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2020-10-26 22:35:19,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099589003] [2020-10-26 22:35:19,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:19,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:35:19,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209302322] [2020-10-26 22:35:19,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:35:19,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:35:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:35:19,535 INFO L87 Difference]: Start difference. First operand 7039 states and 8101 transitions. Second operand 6 states. [2020-10-26 22:35:21,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:21,188 INFO L93 Difference]: Finished difference Result 14934 states and 17327 transitions. [2020-10-26 22:35:21,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 22:35:21,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 433 [2020-10-26 22:35:21,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:21,223 INFO L225 Difference]: With dead ends: 14934 [2020-10-26 22:35:21,224 INFO L226 Difference]: Without dead ends: 7897 [2020-10-26 22:35:21,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7897 states. [2020-10-26 22:35:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7897 to 7754. [2020-10-26 22:35:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7754 states. [2020-10-26 22:35:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7754 states to 7754 states and 8929 transitions. [2020-10-26 22:35:21,411 INFO L78 Accepts]: Start accepts. Automaton has 7754 states and 8929 transitions. Word has length 433 [2020-10-26 22:35:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:21,412 INFO L481 AbstractCegarLoop]: Abstraction has 7754 states and 8929 transitions. [2020-10-26 22:35:21,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:35:21,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7754 states and 8929 transitions. [2020-10-26 22:35:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-26 22:35:21,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:21,433 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:35:21,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 22:35:21,433 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:21,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:21,434 INFO L82 PathProgramCache]: Analyzing trace with hash 372475248, now seen corresponding path program 1 times [2020-10-26 22:35:21,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:21,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761195542] [2020-10-26 22:35:21,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:21,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:21,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:21,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:26,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 497 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 223 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-26 22:35:26,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:26,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:26,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:26,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:26,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:26,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:26,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:26,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:26,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:26,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:35:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:26,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:26,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-26 22:35:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:26,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:35:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:26,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-26 22:35:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:27,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-10-26 22:35:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:27,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 269 proven. 96 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2020-10-26 22:35:27,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761195542] [2020-10-26 22:35:27,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:27,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:27,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484089234] [2020-10-26 22:35:27,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:27,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:27,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:27,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:27,367 INFO L87 Difference]: Start difference. First operand 7754 states and 8929 transitions. Second operand 7 states. [2020-10-26 22:35:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:29,588 INFO L93 Difference]: Finished difference Result 15375 states and 17730 transitions. [2020-10-26 22:35:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:29,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 479 [2020-10-26 22:35:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:29,622 INFO L225 Difference]: With dead ends: 15375 [2020-10-26 22:35:29,622 INFO L226 Difference]: Without dead ends: 7770 [2020-10-26 22:35:29,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:35:29,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2020-10-26 22:35:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7623. [2020-10-26 22:35:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7623 states. [2020-10-26 22:35:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7623 states to 7623 states and 8708 transitions. [2020-10-26 22:35:29,803 INFO L78 Accepts]: Start accepts. Automaton has 7623 states and 8708 transitions. Word has length 479 [2020-10-26 22:35:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:29,804 INFO L481 AbstractCegarLoop]: Abstraction has 7623 states and 8708 transitions. [2020-10-26 22:35:29,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7623 states and 8708 transitions. [2020-10-26 22:35:29,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-10-26 22:35:29,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:29,826 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:29,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 22:35:29,826 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:29,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:29,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1022123584, now seen corresponding path program 1 times [2020-10-26 22:35:29,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:29,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525416299] [2020-10-26 22:35:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:30,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:30,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:33,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:33,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 500 [2020-10-26 22:35:33,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3986 [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:35:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:34,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:34,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:34,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:35:34,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 22:35:34,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:34,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:34,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-26 22:35:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:34,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-26 22:35:34,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-26 22:35:34,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-26 22:35:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:34,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-26 22:35:34,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-26 22:35:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:34,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:34,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:34,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:34,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 22:35:34,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-26 22:35:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 273 proven. 107 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-26 22:35:34,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525416299] [2020-10-26 22:35:34,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:34,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:34,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817460785] [2020-10-26 22:35:34,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:34,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:34,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:34,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:34,823 INFO L87 Difference]: Start difference. First operand 7623 states and 8708 transitions. Second operand 7 states. [2020-10-26 22:35:36,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:36,792 INFO L93 Difference]: Finished difference Result 15101 states and 17263 transitions. [2020-10-26 22:35:36,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:36,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 482 [2020-10-26 22:35:36,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:36,812 INFO L225 Difference]: With dead ends: 15101 [2020-10-26 22:35:36,813 INFO L226 Difference]: Without dead ends: 7037 [2020-10-26 22:35:36,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:35:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7037 states. [2020-10-26 22:35:36,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7037 to 6747. [2020-10-26 22:35:36,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6747 states. [2020-10-26 22:35:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 7616 transitions. [2020-10-26 22:35:36,973 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 7616 transitions. Word has length 482 [2020-10-26 22:35:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:36,974 INFO L481 AbstractCegarLoop]: Abstraction has 6747 states and 7616 transitions. [2020-10-26 22:35:36,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 7616 transitions. [2020-10-26 22:35:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2020-10-26 22:35:36,991 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:36,993 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:36,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 22:35:36,993 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:36,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:36,994 INFO L82 PathProgramCache]: Analyzing trace with hash -20530424, now seen corresponding path program 1 times [2020-10-26 22:35:36,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:36,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867316383] [2020-10-26 22:35:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:37,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:38,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:39,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:39,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 502 [2020-10-26 22:35:39,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:35:39,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2808 [2020-10-26 22:35:39,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-26 22:35:39,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-26 22:35:39,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:40,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 22:35:40,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 22:35:40,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:40,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:40,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-26 22:35:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-26 22:35:40,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-26 22:35:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:35:40,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-26 22:35:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:40,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-26 22:35:40,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:40,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 293 proven. 112 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-26 22:35:40,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867316383] [2020-10-26 22:35:40,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:40,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:40,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733422780] [2020-10-26 22:35:40,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:40,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:40,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:40,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:40,583 INFO L87 Difference]: Start difference. First operand 6747 states and 7616 transitions. Second operand 7 states. [2020-10-26 22:35:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:42,568 INFO L93 Difference]: Finished difference Result 13929 states and 15817 transitions. [2020-10-26 22:35:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:42,570 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 484 [2020-10-26 22:35:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:42,595 INFO L225 Difference]: With dead ends: 13929 [2020-10-26 22:35:42,595 INFO L226 Difference]: Without dead ends: 7331 [2020-10-26 22:35:42,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:35:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2020-10-26 22:35:42,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7184. [2020-10-26 22:35:42,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7184 states. [2020-10-26 22:35:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7184 states to 7184 states and 8190 transitions. [2020-10-26 22:35:42,761 INFO L78 Accepts]: Start accepts. Automaton has 7184 states and 8190 transitions. Word has length 484 [2020-10-26 22:35:42,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:42,762 INFO L481 AbstractCegarLoop]: Abstraction has 7184 states and 8190 transitions. [2020-10-26 22:35:42,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:42,762 INFO L276 IsEmpty]: Start isEmpty. Operand 7184 states and 8190 transitions. [2020-10-26 22:35:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-10-26 22:35:42,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:42,779 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:35:42,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-26 22:35:42,779 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:42,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:42,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1312304036, now seen corresponding path program 1 times [2020-10-26 22:35:42,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:42,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209252391] [2020-10-26 22:35:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:42,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:46,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 507 [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3774 [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:35:46,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 332 [2020-10-26 22:35:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:35:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:46,908 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-10-26 22:35:46,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:46,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:46,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:46,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:46,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:46,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:35:47,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:47,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 22:35:47,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:47,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:47,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:35:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-26 22:35:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-26 22:35:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:47,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-26 22:35:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 605 [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:47,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:47,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:47,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:35:47,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 407 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-26 22:35:48,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209252391] [2020-10-26 22:35:48,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:48,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:35:48,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817933387] [2020-10-26 22:35:48,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:35:48,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:48,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:35:48,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:48,071 INFO L87 Difference]: Start difference. First operand 7184 states and 8190 transitions. Second operand 8 states. [2020-10-26 22:35:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:50,529 INFO L93 Difference]: Finished difference Result 13945 states and 15918 transitions. [2020-10-26 22:35:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:35:50,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 489 [2020-10-26 22:35:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:50,549 INFO L225 Difference]: With dead ends: 13945 [2020-10-26 22:35:50,549 INFO L226 Difference]: Without dead ends: 6910 [2020-10-26 22:35:50,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:35:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6910 states. [2020-10-26 22:35:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6910 to 6747. [2020-10-26 22:35:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6747 states. [2020-10-26 22:35:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 7662 transitions. [2020-10-26 22:35:50,725 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 7662 transitions. Word has length 489 [2020-10-26 22:35:50,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:50,726 INFO L481 AbstractCegarLoop]: Abstraction has 6747 states and 7662 transitions. [2020-10-26 22:35:50,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:35:50,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 7662 transitions. [2020-10-26 22:35:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2020-10-26 22:35:50,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:50,751 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2020-10-26 22:35:50,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 22:35:50,751 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:50,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:50,752 INFO L82 PathProgramCache]: Analyzing trace with hash -707686060, now seen corresponding path program 1 times [2020-10-26 22:35:50,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:50,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1699798495] [2020-10-26 22:35:50,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:50,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:51,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:52,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 526 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2094 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 351 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-26 22:35:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:53,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:53,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:53,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:53,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:35:53,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:53,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:53,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:53,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:53,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:53,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-26 22:35:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:53,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:53,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:53,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-26 22:35:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:53,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:53,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:53,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-26 22:35:53,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-26 22:35:53,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2020-10-26 22:35:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:53,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:35:53,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 426 proven. 2 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-10-26 22:35:53,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1699798495] [2020-10-26 22:35:53,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:53,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:35:53,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151608000] [2020-10-26 22:35:53,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:35:53,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:53,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:35:53,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:35:53,859 INFO L87 Difference]: Start difference. First operand 6747 states and 7662 transitions. Second operand 7 states. [2020-10-26 22:35:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:35:55,646 INFO L93 Difference]: Finished difference Result 13361 states and 15191 transitions. [2020-10-26 22:35:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:35:55,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 508 [2020-10-26 22:35:55,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:35:55,665 INFO L225 Difference]: With dead ends: 13361 [2020-10-26 22:35:55,665 INFO L226 Difference]: Without dead ends: 6763 [2020-10-26 22:35:55,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 22:35:55,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states. [2020-10-26 22:35:55,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6749. [2020-10-26 22:35:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6749 states. [2020-10-26 22:35:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6749 states to 6749 states and 7613 transitions. [2020-10-26 22:35:55,823 INFO L78 Accepts]: Start accepts. Automaton has 6749 states and 7613 transitions. Word has length 508 [2020-10-26 22:35:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:35:55,823 INFO L481 AbstractCegarLoop]: Abstraction has 6749 states and 7613 transitions. [2020-10-26 22:35:55,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:35:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 6749 states and 7613 transitions. [2020-10-26 22:35:55,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-10-26 22:35:55,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:35:55,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:35:55,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 22:35:55,838 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:35:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:35:55,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1769451696, now seen corresponding path program 1 times [2020-10-26 22:35:55,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:35:55,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395135648] [2020-10-26 22:35:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:35:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:56,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:56,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 574 [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1263 [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-26 22:35:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 399 [2020-10-26 22:35:57,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-26 22:35:57,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:57,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:35:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:57,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:57,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:57,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:35:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:57,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-26 22:35:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:57,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-26 22:35:57,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:35:57,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:35:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:35:57,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:57,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-26 22:35:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:57,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 22:35:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:57,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-26 22:35:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:35:57,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:35:57,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:35:57,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 22:35:57,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:35:57,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-26 22:35:57,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:35:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:35:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:35:57,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:35:57,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:35:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 457 proven. 19 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-10-26 22:35:58,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395135648] [2020-10-26 22:35:58,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:35:58,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:35:58,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760557811] [2020-10-26 22:35:58,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:35:58,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:35:58,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:35:58,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:35:58,266 INFO L87 Difference]: Start difference. First operand 6749 states and 7613 transitions. Second operand 8 states. [2020-10-26 22:36:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:36:00,233 INFO L93 Difference]: Finished difference Result 6920 states and 7794 transitions. [2020-10-26 22:36:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:36:00,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 556 [2020-10-26 22:36:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:36:00,234 INFO L225 Difference]: With dead ends: 6920 [2020-10-26 22:36:00,235 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:36:00,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:36:00,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:36:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:36:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:36:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:36:00,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 556 [2020-10-26 22:36:00,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:36:00,242 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:36:00,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:36:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:36:00,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:36:00,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 22:36:00,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:36:01,534 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 330 DAG size of output: 280 [2020-10-26 22:36:03,021 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 272 [2020-10-26 22:36:03,165 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 20 [2020-10-26 22:36:04,491 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 273 DAG size of output: 63 [2020-10-26 22:36:06,535 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 332 DAG size of output: 85 [2020-10-26 22:36:07,449 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 73 [2020-10-26 22:36:08,898 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 265 DAG size of output: 82 [2020-10-26 22:36:08,903 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:36:08,903 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:36:08,903 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:36:08,904 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:36:08,904 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:36:08,904 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-26 22:36:08,904 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:36:08,904 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-26 22:36:08,905 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-26 22:36:08,906 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-26 22:36:08,907 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L270 CegarLoopResult]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (not (= 9 |old(~a19~0)|))) (.cse1 (not (<= 1 |old(~a10~0)|))) (.cse2 (not (<= |old(~a1~0)| 589891))) (.cse5 (not (= 0 |old(~a10~0)|))) (.cse3 (not (= 14 ~a4~0))) (.cse6 (not (= 4 |old(~a10~0)|))) (.cse7 (not (= 8 |old(~a19~0)|))) (.cse4 (not (= ~a12~0 0))) (.cse8 (not (<= |old(~a19~0)| 8)))) (and (or .cse0 .cse1 .cse2) (or (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a19~0)| 9)) (not (<= |old(~a10~0)| 2)) .cse3 .cse4) (or .cse0 .cse5) (or .cse3 .cse6 .cse7 (not (<= (+ |old(~a1~0)| 14262) 0)) .cse4) (or .cse8 (not (<= (+ |old(~a1~0)| 90418) 0))) (or (not (<= |old(~a10~0)| 1)) .cse1 .cse2) (or .cse5 (not (<= |old(~a1~0)| 505272))) (or (not (<= 56 |old(~a1~0)|)) .cse3 .cse6 .cse7 .cse4 (not (<= |old(~a1~0)| 144))) (or .cse8 (not (<= 219 |old(~a1~0)|))) (or .cse8 (not (<= |old(~a10~0)| 3))))) [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L75-1(line 75) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-26 22:36:08,908 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-26 22:36:08,909 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-26 22:36:08,910 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-26 22:36:08,911 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,912 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-26 22:36:08,913 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-26 22:36:08,914 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-26 22:36:08,915 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,916 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse6 (= ~a1~0 |old(~a1~0)|)) (.cse7 (= ~a10~0 |old(~a10~0)|))) (let ((.cse3 (not (= 9 |old(~a19~0)|))) (.cse1 (not (= 0 |old(~a10~0)|))) (.cse4 (not (<= 1 |old(~a10~0)|))) (.cse5 (not (<= |old(~a1~0)| 589891))) (.cse2 (not (<= |old(~a19~0)| 8))) (.cse0 (and .cse6 (= ~a19~0 |old(~a19~0)|) .cse7)) (.cse8 (not (= 14 ~a4~0))) (.cse10 (not (= 4 |old(~a10~0)|))) (.cse11 (not (= 8 |old(~a19~0)|))) (.cse9 (not (= ~a12~0 0))) (.cse12 (and (= ~a19~0 8) .cse6 .cse7))) (and (or .cse0 .cse1 (not (<= |old(~a1~0)| 505272))) (or .cse2 .cse0 (not (<= 219 |old(~a1~0)|))) (or .cse0 .cse3 .cse4 .cse5) (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse6 .cse7) .cse3 (not (<= 2 |old(~a10~0)|)) (not (<= |old(~a10~0)| 2)) .cse8 .cse9) (or .cse0 .cse3 .cse1) (or .cse0 (not (<= |old(~a10~0)| 1)) .cse4 .cse5) (or .cse8 .cse10 .cse11 (not (<= (+ |old(~a1~0)| 14262) 0)) .cse9 .cse12) (or .cse2 (not (<= (+ |old(~a1~0)| 90418) 0)) .cse0) (or .cse2 .cse0 (not (<= |old(~a10~0)| 3))) (or (not (<= 56 |old(~a1~0)|)) .cse8 .cse10 .cse11 .cse9 .cse12 (not (<= |old(~a1~0)| 144)))))) [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-26 22:36:08,917 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,918 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-26 22:36:08,919 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-26 22:36:08,920 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,921 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-26 22:36:08,922 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:36:08,922 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-26 22:36:08,922 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:36:08,923 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse4 (= ~a19~0 8)) (.cse2 (= 14 ~a4~0)) (.cse3 (= ~a12~0 0)) (.cse5 (= ~a10~0 4)) (.cse6 (<= ~a1~0 589891)) (.cse7 (<= 1 ~a10~0)) (.cse0 (= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse8 (<= ~a10~0 1))) (or (and (= ~a10~0 0) .cse0) (and .cse1 (<= ~a10~0 3)) (and .cse2 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0))) (<= ~a10~0 2) .cse3 .cse0 (<= 2 ~a10~0)) (not (= 0 |old(~a10~0)|)) (and .cse4 .cse2 .cse3 (<= (+ ~a1~0 14262) 0) .cse5) (and .cse6 .cse7 .cse8) (and .cse1 (<= (+ ~a1~0 90418) 0)) (and .cse4 (<= ~a1~0 144) .cse2 .cse3 (<= 56 ~a1~0) .cse5) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse6 .cse7 .cse0) (and .cse1 (<= 219 ~a1~0)) (and (<= ~a1~0 505272) .cse8 (<= |old(~a10~0)| ~a10~0)))) [2020-10-26 22:36:08,923 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-26 22:36:08,923 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-26 22:36:08,923 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse2 (= ~a19~0 8)) (.cse5 (= ~a10~0 4)) (.cse3 (= 14 ~a4~0)) (.cse4 (= ~a12~0 0)) (.cse6 (<= ~a1~0 589891)) (.cse7 (<= 1 ~a10~0)) (.cse0 (= ~a19~0 9)) (.cse1 (<= ~a19~0 8)) (.cse8 (<= ~a10~0 1))) (or (and (= ~a10~0 0) .cse0) (and .cse1 (<= ~a10~0 3)) (not (= 0 |old(~a10~0)|)) (and .cse2 .cse3 .cse4 (<= (+ ~a1~0 14262) 0) .cse5) (and .cse6 .cse7 .cse8) (and .cse1 (<= (+ ~a1~0 90418) 0)) (and .cse2 (<= ~a1~0 144) .cse3 .cse4 (<= 56 ~a1~0) .cse5) (and .cse3 (<= ~a10~0 2) .cse4 .cse0 (<= 2 ~a10~0)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (and .cse6 .cse7 .cse0) (and .cse1 (<= 219 ~a1~0)) (and (<= ~a1~0 505272) .cse8 (<= |old(~a10~0)| ~a10~0)))) [2020-10-26 22:36:08,923 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-26 22:36:08,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:36:08 BoogieIcfgContainer [2020-10-26 22:36:08,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:36:08,950 INFO L168 Benchmark]: Toolchain (without parser) took 133416.43 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 130.1 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2020-10-26 22:36:08,951 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:36:08,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.37 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 135.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:08,952 INFO L168 Benchmark]: Boogie Preprocessor took 181.47 ms. Allocated memory is still 156.2 MB. Free memory was 135.9 MB in the beginning and 131.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:08,952 INFO L168 Benchmark]: RCFGBuilder took 1578.82 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 113.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2020-10-26 22:36:08,953 INFO L168 Benchmark]: TraceAbstraction took 130873.85 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 113.0 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2020-10-26 22:36:08,955 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 766.37 ms. Allocated memory is still 156.2 MB. Free memory was 129.4 MB in the beginning and 135.9 MB in the end (delta: -6.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 181.47 ms. Allocated memory is still 156.2 MB. Free memory was 135.9 MB in the beginning and 131.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1578.82 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 113.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 130873.85 ms. Allocated memory was 156.2 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 113.0 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.0 GB. 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: ((((((((((((a10 == 0 && a19 == 9) || (a19 <= 8 && a10 <= 3)) || !(0 == \old(a10))) || ((((a19 == 8 && 14 == a4) && a12 == 0) && a1 + 14262 <= 0) && a10 == 4)) || ((a1 <= 589891 && 1 <= a10) && a10 <= 1)) || (a19 <= 8 && a1 + 90418 <= 0)) || (((((a19 == 8 && a1 <= 144) && 14 == a4) && a12 == 0) && 56 <= a1) && a10 == 4)) || ((((14 == a4 && a10 <= 2) && a12 == 0) && a19 == 9) && 2 <= a10)) || !(9 == \old(a19))) || !(\old(a1) <= 23)) || ((a1 <= 589891 && 1 <= a10) && a19 == 9)) || (a19 <= 8 && 219 <= a1)) || ((a1 <= 505272 && a10 <= 1) && \old(a10) <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 122.1s, OverallIterations: 23, TraceHistogramMax: 5, AutomataDifference: 48.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 652 SDtfs, 10241 SDslu, 794 SDs, 0 SdLazy, 21328 SolverSat, 2669 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 243 SyntacticMatches, 2 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7754occurred in iteration=17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 23 MinimizatonAttempts, 2232 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1187 PreInvPairs, 1307 NumberOfFragments, 773 HoareAnnotationTreeSize, 1187 FomulaSimplifications, 4463339 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 39063 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 66.1s InterpolantComputationTime, 7340 NumberOfCodeBlocks, 7340 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 7317 ConstructedInterpolants, 0 QuantifiedInterpolants, 6966568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 7328/8112 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...