/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:35:15,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:35:15,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:35:15,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:35:15,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:35:15,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:35:15,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:35:15,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:35:15,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:35:15,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:35:15,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:35:15,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:35:15,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:35:15,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:35:15,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:35:15,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:35:15,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:35:15,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:35:15,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:35:15,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:35:15,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:35:15,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:35:15,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:35:15,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:35:15,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:35:15,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:35:15,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:35:15,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:35:15,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:35:15,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:35:15,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:35:15,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:35:15,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:35:15,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:35:15,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:35:15,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:35:15,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:35:15,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:35:15,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:35:15,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:35:15,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:35:15,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:35:15,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:35:15,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:35:15,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:35:15,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:35:15,687 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:35:15,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:35:15,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:35:15,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:35:15,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:35:15,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:35:15,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:35:15,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:35:15,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:35:15,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:35:15,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:35:15,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:35:15,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:35:15,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:35:15,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:35:15,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:35:15,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:35:15,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:15,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:35:15,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:35:15,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:35:15,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:35:15,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:35:15,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:35:15,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:35:15,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:35:16,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:35:16,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:35:16,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:35:16,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:35:16,136 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:35:16,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-10-26 20:35:16,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b4f41b74/d95c5d1c17b74eb5aaa1ad9dce9f37b5/FLAG6af9e7cc8 [2020-10-26 20:35:16,956 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:35:16,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label42.c [2020-10-26 20:35:16,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b4f41b74/d95c5d1c17b74eb5aaa1ad9dce9f37b5/FLAG6af9e7cc8 [2020-10-26 20:35:16,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8b4f41b74/d95c5d1c17b74eb5aaa1ad9dce9f37b5 [2020-10-26 20:35:17,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:35:17,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:35:17,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:17,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:35:17,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:35:17,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:16" (1/1) ... [2020-10-26 20:35:17,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2577ae21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17, skipping insertion in model container [2020-10-26 20:35:17,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:35:16" (1/1) ... [2020-10-26 20:35:17,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:35:17,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:35:17,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:17,474 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:35:17,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:35:17,695 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:35:17,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17 WrapperNode [2020-10-26 20:35:17,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:35:17,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:35:17,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:35:17,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:35:17,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... [2020-10-26 20:35:17,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:35:17,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:35:17,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:35:17,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:35:17,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:35:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:35:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:35:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:35:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:35:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:35:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:35:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:35:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:35:19,204 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:35:19,204 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:35:19,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:19 BoogieIcfgContainer [2020-10-26 20:35:19,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:35:19,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:35:19,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:35:19,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:35:19,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:35:16" (1/3) ... [2020-10-26 20:35:19,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db310d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:19, skipping insertion in model container [2020-10-26 20:35:19,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:35:17" (2/3) ... [2020-10-26 20:35:19,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db310d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:35:19, skipping insertion in model container [2020-10-26 20:35:19,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:35:19" (3/3) ... [2020-10-26 20:35:19,215 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label42.c [2020-10-26 20:35:19,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:35:19,233 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:35:19,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:35:19,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:35:19,274 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:35:19,274 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:35:19,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:35:19,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:35:19,275 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:35:19,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:35:19,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:35:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:35:19,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-26 20:35:19,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:19,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:19,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:19,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:19,320 INFO L82 PathProgramCache]: Analyzing trace with hash -119491015, now seen corresponding path program 1 times [2020-10-26 20:35:19,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:19,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006996632] [2020-10-26 20:35:19,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:19,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:20,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:21,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:21,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 20:35:21,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:21,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2321 [2020-10-26 20:35:21,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:21,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-26 20:35:21,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:35:22,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:22,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:22,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:22,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:22,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:22,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:22,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:22,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:22,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006996632] [2020-10-26 20:35:22,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:22,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 20:35:22,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798008689] [2020-10-26 20:35:22,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:35:22,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:22,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:35:22,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:35:22,369 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-26 20:35:22,535 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:35:24,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:24,216 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:35:24,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:35:24,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-10-26 20:35:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:24,232 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:35:24,233 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:35:24,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:35:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:35:24,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:35:24,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:35:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-26 20:35:24,317 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 122 [2020-10-26 20:35:24,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:24,318 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-26 20:35:24,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:35:24,319 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-26 20:35:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-26 20:35:24,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:24,324 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:24,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:35:24,324 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:24,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:24,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2040556467, now seen corresponding path program 1 times [2020-10-26 20:35:24,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:24,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393438681] [2020-10-26 20:35:24,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:24,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:24,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:25,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:25,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-26 20:35:25,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-10-26 20:35:25,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:25,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:26,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:26,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:26,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:26,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:26,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:35:26,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:26,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:35:26,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:26,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:26,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:35:26,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:35:26,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393438681] [2020-10-26 20:35:26,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:35:26,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:35:26,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902928650] [2020-10-26 20:35:26,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:26,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:26,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:26,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:26,162 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 7 states. [2020-10-26 20:35:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:27,974 INFO L93 Difference]: Finished difference Result 852 states and 1248 transitions. [2020-10-26 20:35:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:35:27,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2020-10-26 20:35:27,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:27,987 INFO L225 Difference]: With dead ends: 852 [2020-10-26 20:35:27,987 INFO L226 Difference]: Without dead ends: 577 [2020-10-26 20:35:27,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-10-26 20:35:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 559. [2020-10-26 20:35:28,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-26 20:35:28,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 788 transitions. [2020-10-26 20:35:28,093 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 788 transitions. Word has length 132 [2020-10-26 20:35:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:28,094 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 788 transitions. [2020-10-26 20:35:28,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 788 transitions. [2020-10-26 20:35:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-26 20:35:28,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:28,108 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:28,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:35:28,109 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:28,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:28,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1925842954, now seen corresponding path program 1 times [2020-10-26 20:35:28,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:28,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568873114] [2020-10-26 20:35:28,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:28,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:28,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:28,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:29,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1052 [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:29,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-26 20:35:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:29,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:29,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:29,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:29,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:29,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:35:29,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:35:29,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:29,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:35:29,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:35:29,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568873114] [2020-10-26 20:35:29,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:29,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:29,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520597075] [2020-10-26 20:35:29,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:29,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:29,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:29,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:29,500 INFO L87 Difference]: Start difference. First operand 559 states and 788 transitions. Second operand 7 states. [2020-10-26 20:35:31,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:31,229 INFO L93 Difference]: Finished difference Result 1688 states and 2469 transitions. [2020-10-26 20:35:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:35:31,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-10-26 20:35:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:31,240 INFO L225 Difference]: With dead ends: 1688 [2020-10-26 20:35:31,240 INFO L226 Difference]: Without dead ends: 1135 [2020-10-26 20:35:31,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:35:31,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2020-10-26 20:35:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 702. [2020-10-26 20:35:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2020-10-26 20:35:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 962 transitions. [2020-10-26 20:35:31,293 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 962 transitions. Word has length 133 [2020-10-26 20:35:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:31,294 INFO L481 AbstractCegarLoop]: Abstraction has 702 states and 962 transitions. [2020-10-26 20:35:31,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 962 transitions. [2020-10-26 20:35:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-26 20:35:31,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:31,298 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:31,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:35:31,298 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:31,299 INFO L82 PathProgramCache]: Analyzing trace with hash 789320656, now seen corresponding path program 1 times [2020-10-26 20:35:31,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:31,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949431632] [2020-10-26 20:35:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:31,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:31,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:36,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-26 20:35:36,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-26 20:35:36,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:36,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:35:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:35:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:36,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:36,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:36,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:36,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:36,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:36,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:36,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:36,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:36,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:36,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:36,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:35:36,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:36,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:36,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:36,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:36,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:36,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:36,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:35:36,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:36,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:36,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:36,666 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:35:36,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949431632] [2020-10-26 20:35:36,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:36,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:35:36,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249351532] [2020-10-26 20:35:36,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:36,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:36,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:36,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:36,669 INFO L87 Difference]: Start difference. First operand 702 states and 962 transitions. Second operand 7 states. [2020-10-26 20:35:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:38,353 INFO L93 Difference]: Finished difference Result 1847 states and 2581 transitions. [2020-10-26 20:35:38,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:35:38,354 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-10-26 20:35:38,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:38,367 INFO L225 Difference]: With dead ends: 1847 [2020-10-26 20:35:38,368 INFO L226 Difference]: Without dead ends: 1151 [2020-10-26 20:35:38,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:35:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2020-10-26 20:35:38,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1133. [2020-10-26 20:35:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1133 states. [2020-10-26 20:35:38,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1505 transitions. [2020-10-26 20:35:38,446 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1505 transitions. Word has length 145 [2020-10-26 20:35:38,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:38,447 INFO L481 AbstractCegarLoop]: Abstraction has 1133 states and 1505 transitions. [2020-10-26 20:35:38,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1505 transitions. [2020-10-26 20:35:38,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-26 20:35:38,453 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:38,453 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:38,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:35:38,453 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:38,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:38,454 INFO L82 PathProgramCache]: Analyzing trace with hash -796679523, now seen corresponding path program 1 times [2020-10-26 20:35:38,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:38,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361780350] [2020-10-26 20:35:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:38,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:38,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:38,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-26 20:35:43,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:43,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:35:43,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:35:43,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:35:43,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:43,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:43,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:43,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:35:43,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:43,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:35:43,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:43,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:43,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:43,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:43,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 20:35:43,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:43,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:35:43,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 20:35:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:43,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:43,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:43,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:35:43,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:43,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 20:35:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 42 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:35:44,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361780350] [2020-10-26 20:35:44,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:44,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:44,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364345480] [2020-10-26 20:35:44,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:44,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:44,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:44,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:44,075 INFO L87 Difference]: Start difference. First operand 1133 states and 1505 transitions. Second operand 7 states. [2020-10-26 20:35:44,234 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:35:45,019 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:35:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:45,920 INFO L93 Difference]: Finished difference Result 2421 states and 3280 transitions. [2020-10-26 20:35:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:35:45,921 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-26 20:35:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:45,929 INFO L225 Difference]: With dead ends: 2421 [2020-10-26 20:35:45,929 INFO L226 Difference]: Without dead ends: 1294 [2020-10-26 20:35:45,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:35:45,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2020-10-26 20:35:45,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1288. [2020-10-26 20:35:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1288 states. [2020-10-26 20:35:45,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1705 transitions. [2020-10-26 20:35:45,990 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1705 transitions. Word has length 170 [2020-10-26 20:35:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:45,991 INFO L481 AbstractCegarLoop]: Abstraction has 1288 states and 1705 transitions. [2020-10-26 20:35:45,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:35:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1705 transitions. [2020-10-26 20:35:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-10-26 20:35:45,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:45,997 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:35:45,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:35:45,997 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:45,998 INFO L82 PathProgramCache]: Analyzing trace with hash -62426960, now seen corresponding path program 1 times [2020-10-26 20:35:45,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:45,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [53657731] [2020-10-26 20:35:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:46,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:51,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:35:51,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:51,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:51,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:51,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:35:51,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:51,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-26 20:35:51,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:35:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:35:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:51,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:51,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:35:51,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:35:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:51,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-26 20:35:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:51,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:51,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:51,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:51,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:51,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:51,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:51,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:35:51,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:51,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:51,508 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 86 proven. 40 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:35:51,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [53657731] [2020-10-26 20:35:51,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:51,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:35:51,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109473446] [2020-10-26 20:35:51,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:35:51,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:51,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:35:51,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:35:51,512 INFO L87 Difference]: Start difference. First operand 1288 states and 1705 transitions. Second operand 8 states. [2020-10-26 20:35:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:35:54,111 INFO L93 Difference]: Finished difference Result 3415 states and 4618 transitions. [2020-10-26 20:35:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:35:54,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 207 [2020-10-26 20:35:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:35:54,124 INFO L225 Difference]: With dead ends: 3415 [2020-10-26 20:35:54,125 INFO L226 Difference]: Without dead ends: 2133 [2020-10-26 20:35:54,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:35:54,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2020-10-26 20:35:54,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2120. [2020-10-26 20:35:54,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2120 states. [2020-10-26 20:35:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2641 transitions. [2020-10-26 20:35:54,229 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2641 transitions. Word has length 207 [2020-10-26 20:35:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:35:54,229 INFO L481 AbstractCegarLoop]: Abstraction has 2120 states and 2641 transitions. [2020-10-26 20:35:54,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:35:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2641 transitions. [2020-10-26 20:35:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-26 20:35:54,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:35:54,237 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 20:35:54,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:35:54,238 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:35:54,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:35:54,238 INFO L82 PathProgramCache]: Analyzing trace with hash -164920987, now seen corresponding path program 1 times [2020-10-26 20:35:54,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:35:54,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [295221513] [2020-10-26 20:35:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:35:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:54,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:57,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:58,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-26 20:35:59,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-26 20:35:59,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:35:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:59,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:35:59,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:59,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:35:59,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:59,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:59,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:59,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:35:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:35:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:35:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:35:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:59,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:59,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:35:59,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:35:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:35:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 20:35:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:35:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:35:59,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:35:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-26 20:35:59,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:35:59,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:35:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 108 proven. 42 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-26 20:35:59,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [295221513] [2020-10-26 20:35:59,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:35:59,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:35:59,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681752297] [2020-10-26 20:35:59,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:35:59,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:35:59,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:35:59,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:35:59,808 INFO L87 Difference]: Start difference. First operand 2120 states and 2641 transitions. Second operand 7 states. [2020-10-26 20:36:01,699 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-26 20:36:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:01,735 INFO L93 Difference]: Finished difference Result 4524 states and 5630 transitions. [2020-10-26 20:36:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:01,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 224 [2020-10-26 20:36:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:01,750 INFO L225 Difference]: With dead ends: 4524 [2020-10-26 20:36:01,750 INFO L226 Difference]: Without dead ends: 2410 [2020-10-26 20:36:01,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:01,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2020-10-26 20:36:01,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2400. [2020-10-26 20:36:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2020-10-26 20:36:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 2938 transitions. [2020-10-26 20:36:01,849 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 2938 transitions. Word has length 224 [2020-10-26 20:36:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:01,850 INFO L481 AbstractCegarLoop]: Abstraction has 2400 states and 2938 transitions. [2020-10-26 20:36:01,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 2938 transitions. [2020-10-26 20:36:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-26 20:36:01,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:01,859 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:01,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:36:01,859 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:01,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1795188507, now seen corresponding path program 1 times [2020-10-26 20:36:01,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:01,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103171329] [2020-10-26 20:36:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 775 [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-26 20:36:02,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-26 20:36:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:02,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:02,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:02,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:02,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-26 20:36:02,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:02,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:03,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:03,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:03,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:03,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:36:03,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 157 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-26 20:36:03,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103171329] [2020-10-26 20:36:03,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:03,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:03,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783482248] [2020-10-26 20:36:03,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:03,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:03,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:03,270 INFO L87 Difference]: Start difference. First operand 2400 states and 2938 transitions. Second operand 6 states. [2020-10-26 20:36:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:04,786 INFO L93 Difference]: Finished difference Result 4951 states and 6137 transitions. [2020-10-26 20:36:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:36:04,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2020-10-26 20:36:04,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:04,802 INFO L225 Difference]: With dead ends: 4951 [2020-10-26 20:36:04,802 INFO L226 Difference]: Without dead ends: 2692 [2020-10-26 20:36:04,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:04,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2020-10-26 20:36:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2269. [2020-10-26 20:36:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2269 states. [2020-10-26 20:36:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 2648 transitions. [2020-10-26 20:36:04,896 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 2648 transitions. Word has length 238 [2020-10-26 20:36:04,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:04,897 INFO L481 AbstractCegarLoop]: Abstraction has 2269 states and 2648 transitions. [2020-10-26 20:36:04,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:36:04,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 2648 transitions. [2020-10-26 20:36:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-10-26 20:36:04,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:04,907 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:04,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:36:04,908 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:04,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:04,908 INFO L82 PathProgramCache]: Analyzing trace with hash 547022060, now seen corresponding path program 1 times [2020-10-26 20:36:04,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:04,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881937222] [2020-10-26 20:36:04,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:05,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:05,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:06,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:09,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:09,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-10-26 20:36:09,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:10,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-26 20:36:10,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:36:10,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:36:10,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:36:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:10,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:10,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:10,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:10,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-26 20:36:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:36:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 187 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-26 20:36:10,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881937222] [2020-10-26 20:36:10,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:10,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:36:10,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652778188] [2020-10-26 20:36:10,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 20:36:10,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:10,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 20:36:10,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:36:10,713 INFO L87 Difference]: Start difference. First operand 2269 states and 2648 transitions. Second operand 9 states. [2020-10-26 20:36:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:12,396 INFO L93 Difference]: Finished difference Result 5982 states and 7052 transitions. [2020-10-26 20:36:12,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:12,396 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 269 [2020-10-26 20:36:12,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:12,415 INFO L225 Difference]: With dead ends: 5982 [2020-10-26 20:36:12,416 INFO L226 Difference]: Without dead ends: 3854 [2020-10-26 20:36:12,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:36:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3854 states. [2020-10-26 20:36:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3854 to 3802. [2020-10-26 20:36:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3802 states. [2020-10-26 20:36:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 4380 transitions. [2020-10-26 20:36:12,544 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 4380 transitions. Word has length 269 [2020-10-26 20:36:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:12,545 INFO L481 AbstractCegarLoop]: Abstraction has 3802 states and 4380 transitions. [2020-10-26 20:36:12,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 20:36:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 4380 transitions. [2020-10-26 20:36:12,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-26 20:36:12,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:12,558 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:12,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:36:12,558 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:12,559 INFO L82 PathProgramCache]: Analyzing trace with hash 234493967, now seen corresponding path program 1 times [2020-10-26 20:36:12,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:12,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [506672395] [2020-10-26 20:36:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:12,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:12,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:12,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:14,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:16,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:16,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:16,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 300 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-26 20:36:17,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:17,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:17,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:36:17,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:17,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:17,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:36:17,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:36:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:36:17,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-26 20:36:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-26 20:36:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-26 20:36:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:17,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:17,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-26 20:36:18,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:18,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:18,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:36:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:18,232 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 184 proven. 56 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-26 20:36:18,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [506672395] [2020-10-26 20:36:18,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:18,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:18,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829073468] [2020-10-26 20:36:18,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:36:18,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:18,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:36:18,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:18,235 INFO L87 Difference]: Start difference. First operand 3802 states and 4380 transitions. Second operand 8 states. [2020-10-26 20:36:19,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:19,968 INFO L93 Difference]: Finished difference Result 7837 states and 9342 transitions. [2020-10-26 20:36:19,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:19,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 280 [2020-10-26 20:36:19,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:19,990 INFO L225 Difference]: With dead ends: 7837 [2020-10-26 20:36:19,990 INFO L226 Difference]: Without dead ends: 4176 [2020-10-26 20:36:20,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:36:20,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4176 states. [2020-10-26 20:36:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4176 to 4078. [2020-10-26 20:36:20,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4078 states. [2020-10-26 20:36:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 4765 transitions. [2020-10-26 20:36:20,153 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 4765 transitions. Word has length 280 [2020-10-26 20:36:20,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:20,154 INFO L481 AbstractCegarLoop]: Abstraction has 4078 states and 4765 transitions. [2020-10-26 20:36:20,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:36:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 4765 transitions. [2020-10-26 20:36:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-10-26 20:36:20,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:20,169 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:20,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:36:20,170 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:20,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:20,170 INFO L82 PathProgramCache]: Analyzing trace with hash -182410334, now seen corresponding path program 1 times [2020-10-26 20:36:20,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:20,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486269615] [2020-10-26 20:36:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:20,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:20,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:22,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-26 20:36:25,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:25,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:25,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:25,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 20:36:25,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:36:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:36:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-26 20:36:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:25,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:25,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-26 20:36:25,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-26 20:36:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:36:25,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:25,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-26 20:36:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:25,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:25,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:25,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:25,607 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 204 proven. 70 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-26 20:36:25,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486269615] [2020-10-26 20:36:25,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:25,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:25,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624703052] [2020-10-26 20:36:25,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:25,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:25,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:25,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:25,609 INFO L87 Difference]: Start difference. First operand 4078 states and 4765 transitions. Second operand 7 states. [2020-10-26 20:36:27,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:27,509 INFO L93 Difference]: Finished difference Result 8865 states and 10404 transitions. [2020-10-26 20:36:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:36:27,515 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 291 [2020-10-26 20:36:27,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:27,536 INFO L225 Difference]: With dead ends: 8865 [2020-10-26 20:36:27,536 INFO L226 Difference]: Without dead ends: 4928 [2020-10-26 20:36:27,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:27,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4928 states. [2020-10-26 20:36:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4928 to 4914. [2020-10-26 20:36:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4914 states. [2020-10-26 20:36:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4914 states to 4914 states and 5683 transitions. [2020-10-26 20:36:27,682 INFO L78 Accepts]: Start accepts. Automaton has 4914 states and 5683 transitions. Word has length 291 [2020-10-26 20:36:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:27,683 INFO L481 AbstractCegarLoop]: Abstraction has 4914 states and 5683 transitions. [2020-10-26 20:36:27,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4914 states and 5683 transitions. [2020-10-26 20:36:27,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-26 20:36:27,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:27,700 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:27,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:36:27,700 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:27,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1756959721, now seen corresponding path program 1 times [2020-10-26 20:36:27,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:27,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212744657] [2020-10-26 20:36:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:27,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:27,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:29,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4711 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:32,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:36:32,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:36:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:36:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:36:32,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:36:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:36:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:36:32,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 20:36:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:32,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:32,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:32,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:32,893 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 216 proven. 14 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-26 20:36:32,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212744657] [2020-10-26 20:36:32,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:32,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:36:32,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080536048] [2020-10-26 20:36:32,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:32,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:32,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:32,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:32,895 INFO L87 Difference]: Start difference. First operand 4914 states and 5683 transitions. Second operand 7 states. [2020-10-26 20:36:34,348 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:36:35,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:35,377 INFO L93 Difference]: Finished difference Result 11593 states and 13420 transitions. [2020-10-26 20:36:35,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:36:35,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-10-26 20:36:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:35,418 INFO L225 Difference]: With dead ends: 11593 [2020-10-26 20:36:35,418 INFO L226 Difference]: Without dead ends: 6127 [2020-10-26 20:36:35,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:35,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2020-10-26 20:36:35,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 4767. [2020-10-26 20:36:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4767 states. [2020-10-26 20:36:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4767 states to 4767 states and 5411 transitions. [2020-10-26 20:36:35,568 INFO L78 Accepts]: Start accepts. Automaton has 4767 states and 5411 transitions. Word has length 302 [2020-10-26 20:36:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:35,568 INFO L481 AbstractCegarLoop]: Abstraction has 4767 states and 5411 transitions. [2020-10-26 20:36:35,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 4767 states and 5411 transitions. [2020-10-26 20:36:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-10-26 20:36:35,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:35,586 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:35,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:36:35,586 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1875127210, now seen corresponding path program 1 times [2020-10-26 20:36:35,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:35,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251306071] [2020-10-26 20:36:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:35,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:36,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-26 20:36:37,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:37,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2089 [2020-10-26 20:36:37,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-26 20:36:37,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-26 20:36:37,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,932 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:36:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:37,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:37,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:37,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:37,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:37,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:36:37,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:36:37,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:37,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:37,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:38,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:36:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:38,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:38,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:36:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:38,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:36:38,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:38,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:36:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:38,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:38,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:36:38,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:38,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:36:38,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:36:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:38,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-26 20:36:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:38,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-26 20:36:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 254 proven. 49 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-10-26 20:36:38,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251306071] [2020-10-26 20:36:38,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:38,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 20:36:38,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749583589] [2020-10-26 20:36:38,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:38,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:38,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:38,200 INFO L87 Difference]: Start difference. First operand 4767 states and 5411 transitions. Second operand 6 states. [2020-10-26 20:36:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:39,636 INFO L93 Difference]: Finished difference Result 9067 states and 10448 transitions. [2020-10-26 20:36:39,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:36:39,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 313 [2020-10-26 20:36:39,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:39,639 INFO L225 Difference]: With dead ends: 9067 [2020-10-26 20:36:39,639 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:36:39,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:36:39,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:36:39,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:36:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:36:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:36:39,663 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 313 [2020-10-26 20:36:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:39,663 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:36:39,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:36:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:36:39,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:36:39,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:36:39,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:36:42,094 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 357 DAG size of output: 328 [2020-10-26 20:36:42,814 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 328 [2020-10-26 20:36:43,062 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 36 [2020-10-26 20:36:44,252 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 251 DAG size of output: 55 [2020-10-26 20:36:46,486 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 316 DAG size of output: 46 [2020-10-26 20:36:48,824 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 316 DAG size of output: 46 [2020-10-26 20:36:49,183 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 35 [2020-10-26 20:36:49,187 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:36:49,188 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:36:49,188 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:36:49,188 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:36:49,188 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:49,188 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,189 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:36:49,190 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:36:49,191 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:36:49,192 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:36:49,193 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:36:49,194 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:36:49,195 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:36:49,196 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:36:49,197 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:36:49,198 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,199 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,200 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse12 (= ~a8~0 |old(~a8~0)|)) (.cse8 (= ~a7~0 |old(~a7~0)|)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse13 (= ~a21~0 1)) (.cse10 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a16~0 |old(~a16~0)|))) (let ((.cse3 (not (= |old(~a17~0)| 1))) (.cse5 (and .cse8 .cse9 .cse13 .cse10 .cse11 (= ~a8~0 15))) (.cse6 (not (= 15 |old(~a8~0)|))) (.cse7 (not (= |old(~a21~0)| 1))) (.cse2 (not (= 0 |old(~a17~0)|))) (.cse0 (not (<= |old(~a21~0)| 0))) (.cse4 (not (<= |old(~a16~0)| 5))) (.cse1 (and .cse8 .cse9 (= ~a21~0 |old(~a21~0)|) .cse10 .cse11 .cse12))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse3 (and .cse8 .cse9 .cse10 .cse11 .cse12 (= ~a21~0 ~a20~0)) (not (= |old(~a20~0)| 1)) .cse7) (or .cse3 (not (= 6 |old(~a16~0)|)) .cse5 .cse6 .cse7 (not (<= |old(~a20~0)| 0))) (or (and .cse8 .cse9 .cse13 .cse10 .cse11 .cse12) .cse7 .cse2) (or .cse0 .cse4 .cse1)))) [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:36:49,201 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L270 CegarLoopResult]: At program point L523(line 523) the Hoare annotation is: (let ((.cse0 (not (= |old(~a17~0)| 1))) (.cse3 (not (= 15 |old(~a8~0)|))) (.cse1 (not (= |old(~a21~0)| 1))) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse5 (not (<= |old(~a21~0)| 0))) (.cse4 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 (not (= |old(~a20~0)| 1)) .cse1) (or .cse0 .cse2 .cse3 .cse1) (or .cse1 .cse4) (or .cse0 (not (= 6 |old(~a16~0)|)) .cse3 .cse1 (not (<= |old(~a20~0)| 0))) (or .cse5 .cse2) (or .cse5 .cse4))) [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L523-1(line 523) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:36:49,202 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:36:49,203 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:36:49,204 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:36:49,205 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a16~0 5) (= ~a8~0 15) (= ~a20~0 1) (= ~a21~0 ~a20~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:36:49,205 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:36:49,205 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:36:49,206 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (and (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15) (= ~a21~0 ~a20~0) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| |old(~a21~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:36:49,206 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:49,206 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse2 (= ~a8~0 15)) (.cse0 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse5 (= ~a17~0 0)) (.cse3 (<= ~a16~0 5)) (.cse4 (<= ~a21~0 0))) (or (not (= |old(~a17~0)| 1)) (and (= ~a20~0 1) (= ~a21~0 ~a20~0) .cse0) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (and .cse1 (= ~a16~0 6) .cse2 .cse0 (<= ~a20~0 0)) (and .cse1 .cse3 .cse2 .cse0) (not (= |old(~a20~0)| |old(~a21~0)|)) (and .cse4 .cse5) (and .cse1 .cse5) (not (= 15 |old(~a8~0)|)) (and .cse3 .cse4) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:36:49,206 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:36:49,206 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:36:49,206 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse2 (= ~a8~0 15)) (.cse0 (= ~a17~0 1)) (.cse1 (= ~a21~0 1)) (.cse5 (= ~a17~0 0)) (.cse3 (<= ~a16~0 5)) (.cse4 (<= ~a21~0 0))) (or (not (= |old(~a17~0)| 1)) (and (= ~a20~0 1) (= ~a21~0 ~a20~0) .cse0) (not (<= |old(~a16~0)| 5)) (not (= |old(~a20~0)| 1)) (and .cse1 (= ~a16~0 6) .cse2 .cse0 (<= ~a20~0 0)) (and .cse1 .cse3 .cse2 .cse0) (not (= |old(~a20~0)| |old(~a21~0)|)) (and .cse4 .cse5) (and .cse1 .cse5) (not (= 15 |old(~a8~0)|)) (and .cse3 .cse4) (not (= |old(~a7~0)| 0)))) [2020-10-26 20:36:49,206 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:36:49,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:36:49 BoogieIcfgContainer [2020-10-26 20:36:49,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:36:49,250 INFO L168 Benchmark]: Toolchain (without parser) took 92244.79 ms. Allocated memory was 151.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 124.7 MB in the beginning and 1.1 GB in the end (delta: -950.3 MB). Peak memory consumption was 771.0 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:49,251 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:36:49,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.73 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 97.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:49,252 INFO L168 Benchmark]: Boogie Preprocessor took 145.64 ms. Allocated memory is still 151.0 MB. Free memory was 97.2 MB in the beginning and 129.8 MB in the end (delta: -32.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:49,253 INFO L168 Benchmark]: RCFGBuilder took 1363.46 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 129.5 MB in the beginning and 141.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:49,254 INFO L168 Benchmark]: TraceAbstraction took 90037.05 ms. Allocated memory was 185.6 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 141.1 MB in the beginning and 1.1 GB in the end (delta: -933.9 MB). Peak memory consumption was 752.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:36:49,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 151.0 MB. Free memory is still 121.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 684.73 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 97.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.64 ms. Allocated memory is still 151.0 MB. Free memory was 97.2 MB in the beginning and 129.8 MB in the end (delta: -32.6 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1363.46 ms. Allocated memory was 151.0 MB in the beginning and 185.6 MB in the end (delta: 34.6 MB). Free memory was 129.5 MB in the beginning and 141.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 90037.05 ms. Allocated memory was 185.6 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 141.1 MB in the beginning and 1.1 GB in the end (delta: -933.9 MB). Peak memory consumption was 752.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((!(\old(a17) == 1) || ((a20 == 1 && a21 == a20) && a17 == 1)) || !(\old(a16) <= 5)) || !(\old(a20) == 1)) || ((((a21 == 1 && a16 == 6) && a8 == 15) && a17 == 1) && a20 <= 0)) || (((a21 == 1 && a16 <= 5) && a8 == 15) && a17 == 1)) || !(\old(a20) == \old(a21))) || (a21 <= 0 && a17 == 0)) || (a21 == 1 && a17 == 0)) || !(15 == \old(a8))) || (a16 <= 5 && a21 <= 0)) || !(\old(a7) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 80.3s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 357 SDtfs, 5461 SDslu, 461 SDs, 0 SdLazy, 10720 SolverSat, 1928 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 251 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4914occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 2451 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 525 PreInvPairs, 639 NumberOfFragments, 595 HoareAnnotationTreeSize, 525 FomulaSimplifications, 1803429 FormulaSimplificationTreeSizeReduction, 3.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 56800 FormulaSimplificationTreeSizeReductionInter, 6.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 52.6s InterpolantComputationTime, 2826 NumberOfCodeBlocks, 2826 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2813 ConstructedInterpolants, 0 QuantifiedInterpolants, 2520138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 2079/2384 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...