/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 11:58:54,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 11:58:54,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 11:58:54,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 11:58:54,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 11:58:54,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 11:58:54,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 11:58:54,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 11:58:54,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 11:58:54,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 11:58:54,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 11:58:54,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 11:58:54,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 11:58:54,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 11:58:54,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 11:58:54,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 11:58:54,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 11:58:54,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 11:58:54,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 11:58:54,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 11:58:54,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 11:58:54,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 11:58:54,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 11:58:54,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 11:58:54,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 11:58:54,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 11:58:54,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 11:58:54,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 11:58:54,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 11:58:54,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 11:58:54,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 11:58:54,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 11:58:54,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 11:58:54,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 11:58:54,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 11:58:54,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 11:58:54,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 11:58:54,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 11:58:54,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 11:58:54,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 11:58:54,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 11:58:54,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 11:58:55,025 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 11:58:55,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 11:58:55,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 11:58:55,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 11:58:55,031 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 11:58:55,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 11:58:55,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 11:58:55,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 11:58:55,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 11:58:55,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 11:58:55,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 11:58:55,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 11:58:55,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 11:58:55,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 11:58:55,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 11:58:55,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 11:58:55,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 11:58:55,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 11:58:55,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 11:58:55,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 11:58:55,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 11:58:55,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:58:55,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 11:58:55,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 11:58:55,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 11:58:55,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 11:58:55,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 11:58:55,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 11:58:55,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 11:58:55,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 11:58:55,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 11:58:55,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 11:58:55,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 11:58:55,496 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 11:58:55,497 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 11:58:55,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label18.c [2020-10-28 11:58:55,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/823b213c6/55c73db8a7f147a9ba006098e810b47f/FLAGfe44c8d47 [2020-10-28 11:58:56,414 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 11:58:56,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label18.c [2020-10-28 11:58:56,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/823b213c6/55c73db8a7f147a9ba006098e810b47f/FLAGfe44c8d47 [2020-10-28 11:58:56,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/823b213c6/55c73db8a7f147a9ba006098e810b47f [2020-10-28 11:58:56,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 11:58:56,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 11:58:56,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 11:58:56,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 11:58:56,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 11:58:56,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:56" (1/1) ... [2020-10-28 11:58:56,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535a338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:56, skipping insertion in model container [2020-10-28 11:58:56,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:56" (1/1) ... [2020-10-28 11:58:56,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 11:58:56,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 11:58:57,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:58:57,324 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 11:58:57,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 11:58:57,543 INFO L208 MainTranslator]: Completed translation [2020-10-28 11:58:57,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57 WrapperNode [2020-10-28 11:58:57,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 11:58:57,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 11:58:57,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 11:58:57,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 11:58:57,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... [2020-10-28 11:58:57,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 11:58:57,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 11:58:57,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 11:58:57,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 11:58:57,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 11:58:57,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 11:58:57,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 11:58:57,746 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 11:58:57,747 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 11:58:57,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 11:58:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 11:58:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 11:58:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 11:58:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 11:58:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 11:58:57,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 11:58:57,750 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 11:58:57,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 11:58:57,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 11:58:57,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 11:58:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 11:58:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 11:58:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 11:58:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 11:58:59,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 11:58:59,497 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 11:58:59,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:59 BoogieIcfgContainer [2020-10-28 11:58:59,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 11:58:59,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 11:58:59,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 11:58:59,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 11:58:59,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:58:56" (1/3) ... [2020-10-28 11:58:59,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bea3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:59, skipping insertion in model container [2020-10-28 11:58:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:57" (2/3) ... [2020-10-28 11:58:59,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55bea3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:58:59, skipping insertion in model container [2020-10-28 11:58:59,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:59" (3/3) ... [2020-10-28 11:58:59,508 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label18.c [2020-10-28 11:58:59,521 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 11:58:59,527 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 11:58:59,541 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 11:58:59,570 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 11:58:59,570 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 11:58:59,570 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 11:58:59,571 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 11:58:59,571 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 11:58:59,571 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 11:58:59,571 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 11:58:59,571 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 11:58:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 11:58:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-28 11:58:59,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:58:59,607 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] [2020-10-28 11:58:59,607 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:58:59,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:58:59,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1630709662, now seen corresponding path program 1 times [2020-10-28 11:58:59,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:58:59,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433660930] [2020-10-28 11:58:59,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:58:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:58:59,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:00,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:00,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 11:59:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-10-28 11:59:00,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:00,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:00,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-28 11:59:00,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:59:00,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:00,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:00,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:00,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:00,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:00,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 11:59:00,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:00,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:00,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:00,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:00,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433660930] [2020-10-28 11:59:00,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:59:00,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 11:59:00,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405685980] [2020-10-28 11:59:00,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 11:59:00,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:00,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 11:59:00,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 11:59:00,773 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 11:59:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:03,115 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-28 11:59:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:03,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 65 [2020-10-28 11:59:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:03,133 INFO L225 Difference]: With dead ends: 586 [2020-10-28 11:59:03,133 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 11:59:03,141 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 [2020-10-28 11:59:03,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 11:59:03,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 11:59:03,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 11:59:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-28 11:59:03,219 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 65 [2020-10-28 11:59:03,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:03,220 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-28 11:59:03,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 11:59:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-28 11:59:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 11:59:03,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:03,228 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:03,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 11:59:03,228 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:03,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:03,229 INFO L82 PathProgramCache]: Analyzing trace with hash 399081023, now seen corresponding path program 1 times [2020-10-28 11:59:03,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:03,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418802270] [2020-10-28 11:59:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:03,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:03,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:04,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:04,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-28 11:59:04,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:04,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 951 [2020-10-28 11:59:04,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:04,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:04,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 11:59:04,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 11:59:04,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 11:59:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:04,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:04,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:04,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:04,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:04,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:04,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:04,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:04,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:04,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 11:59:04,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 11:59:04,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:04,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 11:59:04,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:04,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418802270] [2020-10-28 11:59:04,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:04,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:59:04,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605138044] [2020-10-28 11:59:04,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:59:04,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:04,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:59:04,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:59:04,607 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-28 11:59:06,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:06,430 INFO L93 Difference]: Finished difference Result 741 states and 1021 transitions. [2020-10-28 11:59:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:06,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-10-28 11:59:06,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:06,445 INFO L225 Difference]: With dead ends: 741 [2020-10-28 11:59:06,445 INFO L226 Difference]: Without dead ends: 448 [2020-10-28 11:59:06,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:59:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-28 11:59:06,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-28 11:59:06,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-28 11:59:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 554 transitions. [2020-10-28 11:59:06,510 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 554 transitions. Word has length 135 [2020-10-28 11:59:06,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:06,514 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 554 transitions. [2020-10-28 11:59:06,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:59:06,514 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 554 transitions. [2020-10-28 11:59:06,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-28 11:59:06,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:06,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:06,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 11:59:06,522 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:06,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:06,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2073574617, now seen corresponding path program 1 times [2020-10-28 11:59:06,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:06,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533902388] [2020-10-28 11:59:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:06,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:06,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:07,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:07,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:07,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-28 11:59:07,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:59:07,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1260 [2020-10-28 11:59:07,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:07,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:07,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 11:59:07,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:07,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:07,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:07,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:07,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:07,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:07,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 11:59:07,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:07,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:07,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:07,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:08,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:08,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:08,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 11:59:08,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:08,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533902388] [2020-10-28 11:59:08,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:59:08,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:59:08,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96138375] [2020-10-28 11:59:08,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:08,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:08,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:08,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:08,286 INFO L87 Difference]: Start difference. First operand 444 states and 554 transitions. Second operand 7 states. [2020-10-28 11:59:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:10,176 INFO L93 Difference]: Finished difference Result 1035 states and 1286 transitions. [2020-10-28 11:59:10,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 11:59:10,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-28 11:59:10,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:10,181 INFO L225 Difference]: With dead ends: 1035 [2020-10-28 11:59:10,182 INFO L226 Difference]: Without dead ends: 597 [2020-10-28 11:59:10,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:59:10,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-10-28 11:59:10,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 593. [2020-10-28 11:59:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-28 11:59:10,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 721 transitions. [2020-10-28 11:59:10,222 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 721 transitions. Word has length 142 [2020-10-28 11:59:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:10,223 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 721 transitions. [2020-10-28 11:59:10,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 721 transitions. [2020-10-28 11:59:10,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-28 11:59:10,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:10,227 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:10,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 11:59:10,227 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1854677859, now seen corresponding path program 1 times [2020-10-28 11:59:10,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:10,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1320705634] [2020-10-28 11:59:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:10,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:10,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 11:59:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 11:59:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:10,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:10,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:10,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:10,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:10,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:10,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:10,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:10,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:10,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 11:59:10,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:10,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-28 11:59:10,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:10,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:10,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:10,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:10,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 11:59:10,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 56 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:11,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1320705634] [2020-10-28 11:59:11,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:11,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:59:11,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107986654] [2020-10-28 11:59:11,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:59:11,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:11,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:59:11,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:59:11,044 INFO L87 Difference]: Start difference. First operand 593 states and 721 transitions. Second operand 5 states. [2020-10-28 11:59:12,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:12,821 INFO L93 Difference]: Finished difference Result 1482 states and 1851 transitions. [2020-10-28 11:59:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:12,824 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-10-28 11:59:12,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:12,828 INFO L225 Difference]: With dead ends: 1482 [2020-10-28 11:59:12,828 INFO L226 Difference]: Without dead ends: 595 [2020-10-28 11:59:12,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:59:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-10-28 11:59:12,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2020-10-28 11:59:12,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-28 11:59:12,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 705 transitions. [2020-10-28 11:59:12,857 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 705 transitions. Word has length 144 [2020-10-28 11:59:12,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:12,858 INFO L481 AbstractCegarLoop]: Abstraction has 593 states and 705 transitions. [2020-10-28 11:59:12,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:59:12,858 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 705 transitions. [2020-10-28 11:59:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-28 11:59:12,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:12,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:12,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 11:59:12,861 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:12,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:12,862 INFO L82 PathProgramCache]: Analyzing trace with hash 55204541, now seen corresponding path program 1 times [2020-10-28 11:59:12,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:12,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450788227] [2020-10-28 11:59:12,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:12,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:13,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 906 [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:13,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 11:59:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 11:59:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:13,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:13,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:13,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:13,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:13,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:13,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 11:59:13,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:13,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:14,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:14,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 11:59:14,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:14,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 11:59:14,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:14,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:14,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:14,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:14,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 11:59:14,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:14,315 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 11:59:14,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450788227] [2020-10-28 11:59:14,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 11:59:14,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 11:59:14,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033576065] [2020-10-28 11:59:14,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:14,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:14,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:14,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:14,318 INFO L87 Difference]: Start difference. First operand 593 states and 705 transitions. Second operand 7 states. [2020-10-28 11:59:16,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:16,014 INFO L93 Difference]: Finished difference Result 1504 states and 1844 transitions. [2020-10-28 11:59:16,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:59:16,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2020-10-28 11:59:16,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:16,025 INFO L225 Difference]: With dead ends: 1504 [2020-10-28 11:59:16,025 INFO L226 Difference]: Without dead ends: 1060 [2020-10-28 11:59:16,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:59:16,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-28 11:59:16,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 899. [2020-10-28 11:59:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-28 11:59:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1074 transitions. [2020-10-28 11:59:16,071 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1074 transitions. Word has length 160 [2020-10-28 11:59:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:16,072 INFO L481 AbstractCegarLoop]: Abstraction has 899 states and 1074 transitions. [2020-10-28 11:59:16,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:16,072 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1074 transitions. [2020-10-28 11:59:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-28 11:59:16,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:16,077 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 11:59:16,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 11:59:16,077 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:16,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:16,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1285033478, now seen corresponding path program 1 times [2020-10-28 11:59:16,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:16,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697921278] [2020-10-28 11:59:16,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:16,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:16,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:17,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:17,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-28 11:59:17,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:17,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 986 [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-28 11:59:17,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:17,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:17,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:17,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:17,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:17,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:17,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:59:17,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:17,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:17,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:17,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:17,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:17,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:59:17,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:17,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 11:59:17,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:17,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:59:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:17,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:59:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:17,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:17,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:17,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:59:17,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:17,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 11:59:17,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-28 11:59:17,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697921278] [2020-10-28 11:59:17,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:17,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:59:17,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683605796] [2020-10-28 11:59:17,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:59:17,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:17,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:59:17,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:59:17,766 INFO L87 Difference]: Start difference. First operand 899 states and 1074 transitions. Second operand 5 states. [2020-10-28 11:59:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:19,392 INFO L93 Difference]: Finished difference Result 1951 states and 2449 transitions. [2020-10-28 11:59:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:19,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 252 [2020-10-28 11:59:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:19,406 INFO L225 Difference]: With dead ends: 1951 [2020-10-28 11:59:19,406 INFO L226 Difference]: Without dead ends: 1201 [2020-10-28 11:59:19,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:59:19,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2020-10-28 11:59:19,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1195. [2020-10-28 11:59:19,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-10-28 11:59:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1433 transitions. [2020-10-28 11:59:19,463 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1433 transitions. Word has length 252 [2020-10-28 11:59:19,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:19,464 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 1433 transitions. [2020-10-28 11:59:19,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:59:19,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1433 transitions. [2020-10-28 11:59:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-28 11:59:19,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:19,477 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:19,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 11:59:19,477 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:19,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:19,479 INFO L82 PathProgramCache]: Analyzing trace with hash -798568423, now seen corresponding path program 1 times [2020-10-28 11:59:19,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:19,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102953443] [2020-10-28 11:59:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:19,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:19,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:20,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:24,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:24,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 204 [2020-10-28 11:59:24,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 11:59:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:24,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:24,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:24,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:24,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:24,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:24,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:59:24,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:24,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 11:59:24,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:24,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:24,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:24,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:59:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:24,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:24,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:24,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 11:59:24,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:24,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 11:59:24,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:24,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:24,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 11:59:24,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:24,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-10-28 11:59:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:25,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:25,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:59:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-28 11:59:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:25,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:59:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:25,560 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 362 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-10-28 11:59:25,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102953443] [2020-10-28 11:59:25,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:25,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:25,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861376252] [2020-10-28 11:59:25,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:25,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:25,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:25,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:25,564 INFO L87 Difference]: Start difference. First operand 1195 states and 1433 transitions. Second operand 7 states. [2020-10-28 11:59:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:27,900 INFO L93 Difference]: Finished difference Result 2694 states and 3279 transitions. [2020-10-28 11:59:27,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:59:27,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 376 [2020-10-28 11:59:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:27,912 INFO L225 Difference]: With dead ends: 2694 [2020-10-28 11:59:27,912 INFO L226 Difference]: Without dead ends: 1648 [2020-10-28 11:59:27,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 11:59:27,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2020-10-28 11:59:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1638. [2020-10-28 11:59:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1638 states. [2020-10-28 11:59:27,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1938 transitions. [2020-10-28 11:59:27,994 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1938 transitions. Word has length 376 [2020-10-28 11:59:27,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:27,995 INFO L481 AbstractCegarLoop]: Abstraction has 1638 states and 1938 transitions. [2020-10-28 11:59:27,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1938 transitions. [2020-10-28 11:59:28,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-28 11:59:28,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:28,005 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:28,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 11:59:28,005 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:28,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:28,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1266760683, now seen corresponding path program 1 times [2020-10-28 11:59:28,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:28,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336181765] [2020-10-28 11:59:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:28,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:28,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:30,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 393 [2020-10-28 11:59:33,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 11:59:33,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4978 [2020-10-28 11:59:33,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 11:59:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:59:33,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-28 11:59:33,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:33,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:33,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:33,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:59:33,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:59:33,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:33,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:59:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 11:59:33,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 11:59:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:33,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 11:59:33,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-28 11:59:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:33,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:33,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:33,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:33,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 11:59:33,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 352 proven. 71 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 11:59:34,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336181765] [2020-10-28 11:59:34,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:34,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 11:59:34,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949568499] [2020-10-28 11:59:34,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 11:59:34,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:34,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 11:59:34,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 11:59:34,093 INFO L87 Difference]: Start difference. First operand 1638 states and 1938 transitions. Second operand 8 states. [2020-10-28 11:59:36,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:36,453 INFO L93 Difference]: Finished difference Result 3733 states and 4486 transitions. [2020-10-28 11:59:36,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 11:59:36,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 377 [2020-10-28 11:59:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:36,469 INFO L225 Difference]: With dead ends: 3733 [2020-10-28 11:59:36,470 INFO L226 Difference]: Without dead ends: 2244 [2020-10-28 11:59:36,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-28 11:59:36,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2020-10-28 11:59:36,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2240. [2020-10-28 11:59:36,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2240 states. [2020-10-28 11:59:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 2633 transitions. [2020-10-28 11:59:36,538 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 2633 transitions. Word has length 377 [2020-10-28 11:59:36,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:36,538 INFO L481 AbstractCegarLoop]: Abstraction has 2240 states and 2633 transitions. [2020-10-28 11:59:36,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 11:59:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 2633 transitions. [2020-10-28 11:59:36,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-28 11:59:36,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:36,550 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:36,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 11:59:36,551 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:36,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:36,551 INFO L82 PathProgramCache]: Analyzing trace with hash -2018219259, now seen corresponding path program 1 times [2020-10-28 11:59:36,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:36,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358254792] [2020-10-28 11:59:36,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:36,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:36,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:37,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:40,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 402 [2020-10-28 11:59:40,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 11:59:40,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3633 [2020-10-28 11:59:40,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:40,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:40,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:40,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 11:59:40,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 11:59:40,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:40,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:40,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:40,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:40,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:40,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:40,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:59:40,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:40,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-28 11:59:40,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:40,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:40,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:40,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 11:59:40,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 11:59:40,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:59:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:40,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:40,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:40,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:59:40,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:40,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-28 11:59:40,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:40,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 11:59:40,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 11:59:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 11:59:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:40,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:41,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:41,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:59:41,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 11:59:41,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:41,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:41,263 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 259 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 11:59:41,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358254792] [2020-10-28 11:59:41,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:41,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 11:59:41,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627903755] [2020-10-28 11:59:41,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 11:59:41,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:41,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 11:59:41,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:41,272 INFO L87 Difference]: Start difference. First operand 2240 states and 2633 transitions. Second operand 7 states. [2020-10-28 11:59:43,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:43,416 INFO L93 Difference]: Finished difference Result 4339 states and 5124 transitions. [2020-10-28 11:59:43,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 11:59:43,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 386 [2020-10-28 11:59:43,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:43,429 INFO L225 Difference]: With dead ends: 4339 [2020-10-28 11:59:43,429 INFO L226 Difference]: Without dead ends: 2248 [2020-10-28 11:59:43,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 11:59:43,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2020-10-28 11:59:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2246. [2020-10-28 11:59:43,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-10-28 11:59:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2622 transitions. [2020-10-28 11:59:43,507 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2622 transitions. Word has length 386 [2020-10-28 11:59:43,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:43,507 INFO L481 AbstractCegarLoop]: Abstraction has 2246 states and 2622 transitions. [2020-10-28 11:59:43,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 11:59:43,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2622 transitions. [2020-10-28 11:59:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2020-10-28 11:59:43,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:43,520 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:43,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 11:59:43,520 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:43,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:43,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1191626325, now seen corresponding path program 1 times [2020-10-28 11:59:43,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:43,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701602248] [2020-10-28 11:59:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:43,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:43,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:44,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 406 [2020-10-28 11:59:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:44,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-28 11:59:44,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:44,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-28 11:59:44,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 11:59:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:44,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:44,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:44,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:44,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:44,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:44,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 11:59:44,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:44,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:44,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:44,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:44,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 11:59:44,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:44,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:44,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 11:59:44,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:44,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 11:59:44,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:44,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:44,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:44,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:44,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 11:59:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:44,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:45,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:45,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 11:59:45,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:45,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 11:59:45,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:45,311 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 174 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 11:59:45,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701602248] [2020-10-28 11:59:45,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:45,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 11:59:45,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083970695] [2020-10-28 11:59:45,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 11:59:45,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:45,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 11:59:45,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:59:45,314 INFO L87 Difference]: Start difference. First operand 2246 states and 2622 transitions. Second operand 6 states. [2020-10-28 11:59:47,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:47,146 INFO L93 Difference]: Finished difference Result 4919 states and 5875 transitions. [2020-10-28 11:59:47,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:47,149 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 390 [2020-10-28 11:59:47,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:47,164 INFO L225 Difference]: With dead ends: 4919 [2020-10-28 11:59:47,165 INFO L226 Difference]: Without dead ends: 2822 [2020-10-28 11:59:47,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-28 11:59:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2822 states. [2020-10-28 11:59:47,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2822 to 2679. [2020-10-28 11:59:47,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2679 states. [2020-10-28 11:59:47,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3134 transitions. [2020-10-28 11:59:47,250 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3134 transitions. Word has length 390 [2020-10-28 11:59:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:47,251 INFO L481 AbstractCegarLoop]: Abstraction has 2679 states and 3134 transitions. [2020-10-28 11:59:47,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 11:59:47,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3134 transitions. [2020-10-28 11:59:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-10-28 11:59:47,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 11:59:47,263 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 11:59:47,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 11:59:47,264 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 11:59:47,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 11:59:47,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1459123167, now seen corresponding path program 1 times [2020-10-28 11:59:47,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 11:59:47,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381329696] [2020-10-28 11:59:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 11:59:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:47,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:48,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:48,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 421 [2020-10-28 11:59:48,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 11:59:48,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1494 [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 354 [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-28 11:59:48,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:48,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 11:59:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:48,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:48,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:48,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 11:59:48,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 11:59:48,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:48,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:48,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:48,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:49,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 11:59:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:49,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:49,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-28 11:59:49,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 11:59:49,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:49,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:49,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:49,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-28 11:59:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:49,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:49,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:49,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 11:59:49,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 11:59:49,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:49,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 11:59:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:49,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 11:59:49,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:49,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-28 11:59:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 11:59:49,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 11:59:49,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 11:59:49,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 11:59:49,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 11:59:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 11:59:49,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 11:59:49,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 11:59:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 11:59:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 11:59:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-28 11:59:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 11:59:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 174 proven. 3 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2020-10-28 11:59:49,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381329696] [2020-10-28 11:59:49,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 11:59:49,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 11:59:49,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970278751] [2020-10-28 11:59:49,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 11:59:49,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 11:59:49,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 11:59:49,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 11:59:49,442 INFO L87 Difference]: Start difference. First operand 2679 states and 3134 transitions. Second operand 5 states. [2020-10-28 11:59:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 11:59:51,118 INFO L93 Difference]: Finished difference Result 5353 states and 6344 transitions. [2020-10-28 11:59:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 11:59:51,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 405 [2020-10-28 11:59:51,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 11:59:51,130 INFO L225 Difference]: With dead ends: 5353 [2020-10-28 11:59:51,130 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 11:59:51,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 11:59:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 11:59:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 11:59:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 11:59:51,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 11:59:51,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 405 [2020-10-28 11:59:51,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 11:59:51,143 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 11:59:51,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 11:59:51,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 11:59:51,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 11:59:51,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 11:59:51,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 11:59:52,259 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 40 [2020-10-28 11:59:52,500 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 11:59:52,500 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 11:59:52,500 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 11:59:52,500 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 11:59:52,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:59:52,501 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 11:59:52,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:59:52,501 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 11:59:52,501 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 11:59:52,501 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 11:59:52,502 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 11:59:52,503 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 11:59:52,504 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 11:59:52,505 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 11:59:52,506 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 11:59:52,507 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,508 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L270 CegarLoopResult]: At program point L180(line 180) the Hoare annotation is: (and (not (= 3 |old(~a10~0)|)) (not (<= (+ |old(~a1~0)| 333899) 0)) (not (= |old(~a10~0)| 1)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 2 |old(~a10~0)|)) (not (= 8 |old(~a19~0)|))) [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L180-1(line 180) no Hoare annotation was computed. [2020-10-28 11:59:52,509 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,510 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 11:59:52,511 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,512 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 11:59:52,513 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,514 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 11:59:52,515 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,516 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse0) (or (not (<= (+ |old(~a1~0)| 333899) 0)) .cse0) (or .cse0 (not (= |old(~a10~0)| 1))) (or .cse0 (not (= 2 |old(~a10~0)|))) (or .cse0 (not (= 0 |old(~a10~0)|))) (or (not (= 3 |old(~a10~0)|)) .cse0))) [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 11:59:52,517 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 11:59:52,518 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 11:59:52,519 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 11:59:52,520 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,521 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,522 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,522 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 11:59:52,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 11:59:52,522 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (= 23 ~a1~0)) [2020-10-28 11:59:52,522 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 11:59:52,522 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 11:59:52,522 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|)) (and (= 23 ~a1~0) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|))) [2020-10-28 11:59:52,522 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:59:52,523 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (<= (+ ~a1~0 333899) 0) (= ~a10~0 1) (= ~a10~0 3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-28 11:59:52,523 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 11:59:52,523 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 11:59:52,523 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (<= (+ ~a1~0 333899) 0) (= ~a10~0 1) (= ~a10~0 3) (= ~a10~0 2) (not (= 9 |old(~a19~0)|)) (= ~a10~0 0) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (not (= 23 |old(~a1~0)|))) [2020-10-28 11:59:52,523 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 11:59:52,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:59:52 BoogieIcfgContainer [2020-10-28 11:59:52,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 11:59:52,551 INFO L168 Benchmark]: Toolchain (without parser) took 55891.45 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 123.7 MB in the beginning and 422.1 MB in the end (delta: -298.4 MB). Peak memory consumption was 501.7 MB. Max. memory is 8.0 GB. [2020-10-28 11:59:52,552 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 11:59:52,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 878.42 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 128.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. [2020-10-28 11:59:52,553 INFO L168 Benchmark]: Boogie Preprocessor took 115.72 ms. Allocated memory is still 151.0 MB. Free memory was 128.8 MB in the beginning and 124.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 11:59:52,554 INFO L168 Benchmark]: RCFGBuilder took 1838.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 103.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. [2020-10-28 11:59:52,555 INFO L168 Benchmark]: TraceAbstraction took 53044.09 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 102.7 MB in the beginning and 422.1 MB in the end (delta: -319.4 MB). Peak memory consumption was 479.5 MB. Max. memory is 8.0 GB. [2020-10-28 11:59:52,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 878.42 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 128.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 115.72 ms. Allocated memory is still 151.0 MB. Free memory was 128.8 MB in the beginning and 124.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1838.34 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 103.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53044.09 ms. Allocated memory was 151.0 MB in the beginning and 950.0 MB in the end (delta: 799.0 MB). Free memory was 102.7 MB in the beginning and 422.1 MB in the end (delta: -319.4 MB). Peak memory consumption was 479.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: ((((((((a19 == 8 || a1 + 333899 <= 0) || a10 == 1) || a10 == 3) || a10 == 2) || !(9 == \old(a19))) || a10 == 0) || a19 == 9) || !(0 == \old(a10))) || !(23 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 51.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 3822 SDslu, 306 SDs, 0 SdLazy, 9304 SolverSat, 1024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2679occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 340 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 219 PreInvPairs, 263 NumberOfFragments, 307 HoareAnnotationTreeSize, 219 FomulaSimplifications, 3732 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2259 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 26.9s InterpolantComputationTime, 2832 NumberOfCodeBlocks, 2832 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2821 ConstructedInterpolants, 0 QuantifiedInterpolants, 2124585 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 2495/2664 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...