./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem03_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem03_label22.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:06:13,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:06:13,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:06:13,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:06:13,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:06:13,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:06:13,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:06:13,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:06:13,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:06:13,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:06:13,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:06:13,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:06:13,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:06:13,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:06:13,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:06:13,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:06:13,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:06:13,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:06:13,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:06:13,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:06:13,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:06:13,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:06:13,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:06:13,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:06:13,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:06:13,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:06:13,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:06:13,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:06:13,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:06:13,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:06:13,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:06:13,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:06:13,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:06:13,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:06:13,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:06:13,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:06:13,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:06:13,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:06:13,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:06:13,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:06:13,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:06:13,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:06:13,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:06:13,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:06:13,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:06:13,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:06:13,738 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:06:13,738 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:06:13,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:06:13,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:06:13,739 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:06:13,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:06:13,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:06:13,741 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:06:13,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:06:13,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:06:13,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:06:13,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:06:13,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:06:13,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:06:13,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:06:13,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:06:13,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:06:13,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:06:13,745 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:06:13,745 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f365a0f129fa90e96f59a2a67efc46f6bd75f705664f3dab23b0f5e5824e9e07 [2021-12-15 22:06:13,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:06:13,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:06:13,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:06:13,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:06:13,973 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:06:13,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-12-15 22:06:14,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fd74e1d/691789e900f84b979ae5b4d5b7e9506b/FLAG8ce1f3c81 [2021-12-15 22:06:14,503 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:06:14,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c [2021-12-15 22:06:14,525 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fd74e1d/691789e900f84b979ae5b4d5b7e9506b/FLAG8ce1f3c81 [2021-12-15 22:06:14,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60fd74e1d/691789e900f84b979ae5b4d5b7e9506b [2021-12-15 22:06:14,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:06:14,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:06:14,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:06:14,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:06:14,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:06:14,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:06:14" (1/1) ... [2021-12-15 22:06:14,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469f18a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:14, skipping insertion in model container [2021-12-15 22:06:14,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:06:14" (1/1) ... [2021-12-15 22:06:14,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:06:14,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:06:15,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777] [2021-12-15 22:06:15,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:06:15,328 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:06:15,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label22.c[56764,56777] [2021-12-15 22:06:15,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:06:15,499 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:06:15,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15 WrapperNode [2021-12-15 22:06:15,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:06:15,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:06:15,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:06:15,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:06:15,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,616 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1771 [2021-12-15 22:06:15,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:06:15,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:06:15,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:06:15,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:06:15,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:06:15,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:06:15,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:06:15,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:06:15,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (1/1) ... [2021-12-15 22:06:15,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:06:15,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:15,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 22:06:15,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 22:06:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:06:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:06:15,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:06:15,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:06:15,854 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:06:15,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:06:16,952 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:06:16,965 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:06:16,965 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:06:16,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:06:16 BoogieIcfgContainer [2021-12-15 22:06:16,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:06:16,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:06:16,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:06:16,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:06:16,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:06:14" (1/3) ... [2021-12-15 22:06:16,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76760c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:06:16, skipping insertion in model container [2021-12-15 22:06:16,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:06:15" (2/3) ... [2021-12-15 22:06:16,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76760c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:06:16, skipping insertion in model container [2021-12-15 22:06:16,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:06:16" (3/3) ... [2021-12-15 22:06:16,974 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem03_label22.c [2021-12-15 22:06:16,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:06:16,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:06:17,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:06:17,021 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 22:06:17,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:06:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-15 22:06:17,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:17,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:17,047 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1133598669, now seen corresponding path program 1 times [2021-12-15 22:06:17,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:17,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088442503] [2021-12-15 22:06:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:17,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:06:17,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:17,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088442503] [2021-12-15 22:06:17,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088442503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:17,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:17,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:17,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561173082] [2021-12-15 22:06:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:17,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:17,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:17,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:17,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:17,485 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:18,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:18,318 INFO L93 Difference]: Finished difference Result 829 states and 1478 transitions. [2021-12-15 22:06:18,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:18,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-12-15 22:06:18,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:18,330 INFO L225 Difference]: With dead ends: 829 [2021-12-15 22:06:18,330 INFO L226 Difference]: Without dead ends: 463 [2021-12-15 22:06:18,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:18,336 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 124 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:18,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 127 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 22:06:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2021-12-15 22:06:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 449. [2021-12-15 22:06:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.6183035714285714) internal successors, (725), 448 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 725 transitions. [2021-12-15 22:06:18,392 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 725 transitions. Word has length 167 [2021-12-15 22:06:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:18,393 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 725 transitions. [2021-12-15 22:06:18,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 2 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 725 transitions. [2021-12-15 22:06:18,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-15 22:06:18,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:18,398 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:18,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:06:18,399 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:18,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:18,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1783223651, now seen corresponding path program 1 times [2021-12-15 22:06:18,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:18,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032985478] [2021-12-15 22:06:18,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:18,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:06:18,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:18,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032985478] [2021-12-15 22:06:18,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032985478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:18,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:18,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:18,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296099869] [2021-12-15 22:06:18,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:18,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:18,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:18,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:18,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:18,487 INFO L87 Difference]: Start difference. First operand 449 states and 725 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:19,066 INFO L93 Difference]: Finished difference Result 1323 states and 2147 transitions. [2021-12-15 22:06:19,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:19,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-12-15 22:06:19,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:19,069 INFO L225 Difference]: With dead ends: 1323 [2021-12-15 22:06:19,069 INFO L226 Difference]: Without dead ends: 876 [2021-12-15 22:06:19,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:19,071 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 267 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:19,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 132 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:19,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2021-12-15 22:06:19,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 868. [2021-12-15 22:06:19,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5340253748558246) internal successors, (1330), 867 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1330 transitions. [2021-12-15 22:06:19,112 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1330 transitions. Word has length 172 [2021-12-15 22:06:19,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:19,114 INFO L470 AbstractCegarLoop]: Abstraction has 868 states and 1330 transitions. [2021-12-15 22:06:19,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 2 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1330 transitions. [2021-12-15 22:06:19,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-15 22:06:19,122 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:19,122 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:19,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:06:19,123 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:19,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash 194017064, now seen corresponding path program 1 times [2021-12-15 22:06:19,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:19,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284216401] [2021-12-15 22:06:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:19,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:19,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:06:19,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:19,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284216401] [2021-12-15 22:06:19,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284216401] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:19,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791344664] [2021-12-15 22:06:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:19,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:19,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:19,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 22:06:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:19,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:06:19,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 22:06:19,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:19,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791344664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:19,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:19,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2021-12-15 22:06:19,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896578725] [2021-12-15 22:06:19,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:19,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:19,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:19,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:19,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:19,891 INFO L87 Difference]: Start difference. First operand 868 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:20,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:20,554 INFO L93 Difference]: Finished difference Result 2551 states and 3918 transitions. [2021-12-15 22:06:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:20,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-12-15 22:06:20,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:20,559 INFO L225 Difference]: With dead ends: 2551 [2021-12-15 22:06:20,560 INFO L226 Difference]: Without dead ends: 1685 [2021-12-15 22:06:20,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:20,562 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 100 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:20,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 122 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:20,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2021-12-15 22:06:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1683. [2021-12-15 22:06:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.507728894173603) internal successors, (2536), 1682 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2536 transitions. [2021-12-15 22:06:20,592 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2536 transitions. Word has length 174 [2021-12-15 22:06:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:20,593 INFO L470 AbstractCegarLoop]: Abstraction has 1683 states and 2536 transitions. [2021-12-15 22:06:20,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 2 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:20,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2536 transitions. [2021-12-15 22:06:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-12-15 22:06:20,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:20,597 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:20,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 22:06:20,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:20,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1493330711, now seen corresponding path program 1 times [2021-12-15 22:06:20,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:20,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727260389] [2021-12-15 22:06:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:20,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:06:20,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:20,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727260389] [2021-12-15 22:06:20,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727260389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:20,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:20,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:20,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212825616] [2021-12-15 22:06:20,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:20,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:20,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:20,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:20,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:20,914 INFO L87 Difference]: Start difference. First operand 1683 states and 2536 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:21,530 INFO L93 Difference]: Finished difference Result 5008 states and 7556 transitions. [2021-12-15 22:06:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-12-15 22:06:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:21,540 INFO L225 Difference]: With dead ends: 5008 [2021-12-15 22:06:21,541 INFO L226 Difference]: Without dead ends: 3327 [2021-12-15 22:06:21,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:21,548 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 234 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:21,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 157 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2021-12-15 22:06:21,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3320. [2021-12-15 22:06:21,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3319 states have (on average 1.4356733956010848) internal successors, (4765), 3319 states have internal predecessors, (4765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:21,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4765 transitions. [2021-12-15 22:06:21,602 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4765 transitions. Word has length 181 [2021-12-15 22:06:21,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:21,602 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 4765 transitions. [2021-12-15 22:06:21,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 2 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4765 transitions. [2021-12-15 22:06:21,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-15 22:06:21,607 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:21,608 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:21,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:06:21,608 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:21,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:21,609 INFO L85 PathProgramCache]: Analyzing trace with hash -221584323, now seen corresponding path program 1 times [2021-12-15 22:06:21,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:21,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069606290] [2021-12-15 22:06:21,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:21,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:06:21,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:21,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069606290] [2021-12-15 22:06:21,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069606290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:21,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:21,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:21,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456980203] [2021-12-15 22:06:21,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:21,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:21,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:21,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:21,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:21,667 INFO L87 Difference]: Start difference. First operand 3320 states and 4765 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:22,320 INFO L93 Difference]: Finished difference Result 8285 states and 11850 transitions. [2021-12-15 22:06:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:22,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-12-15 22:06:22,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:22,339 INFO L225 Difference]: With dead ends: 8285 [2021-12-15 22:06:22,339 INFO L226 Difference]: Without dead ends: 4967 [2021-12-15 22:06:22,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:22,347 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 217 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:22,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 177 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:22,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2021-12-15 22:06:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 4960. [2021-12-15 22:06:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 4959 states have (on average 1.4141964105666465) internal successors, (7013), 4959 states have internal predecessors, (7013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 7013 transitions. [2021-12-15 22:06:22,424 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 7013 transitions. Word has length 182 [2021-12-15 22:06:22,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:22,425 INFO L470 AbstractCegarLoop]: Abstraction has 4960 states and 7013 transitions. [2021-12-15 22:06:22,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:22,425 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 7013 transitions. [2021-12-15 22:06:22,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-15 22:06:22,431 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:22,431 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:22,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:06:22,431 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:22,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1696564216, now seen corresponding path program 1 times [2021-12-15 22:06:22,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:22,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024538584] [2021-12-15 22:06:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:22,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-15 22:06:22,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:22,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024538584] [2021-12-15 22:06:22,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024538584] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:22,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:22,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:22,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631835289] [2021-12-15 22:06:22,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:22,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:22,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:22,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:22,474 INFO L87 Difference]: Start difference. First operand 4960 states and 7013 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:23,134 INFO L93 Difference]: Finished difference Result 14209 states and 20157 transitions. [2021-12-15 22:06:23,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:23,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2021-12-15 22:06:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:23,158 INFO L225 Difference]: With dead ends: 14209 [2021-12-15 22:06:23,158 INFO L226 Difference]: Without dead ends: 9251 [2021-12-15 22:06:23,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:23,164 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 242 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:23,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 171 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:23,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2021-12-15 22:06:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 9249. [2021-12-15 22:06:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9249 states, 9248 states have (on average 1.365160034602076) internal successors, (12625), 9248 states have internal predecessors, (12625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:23,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9249 states to 9249 states and 12625 transitions. [2021-12-15 22:06:23,295 INFO L78 Accepts]: Start accepts. Automaton has 9249 states and 12625 transitions. Word has length 184 [2021-12-15 22:06:23,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:23,295 INFO L470 AbstractCegarLoop]: Abstraction has 9249 states and 12625 transitions. [2021-12-15 22:06:23,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 2 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:23,295 INFO L276 IsEmpty]: Start isEmpty. Operand 9249 states and 12625 transitions. [2021-12-15 22:06:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-15 22:06:23,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:23,308 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:23,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:06:23,308 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1084371729, now seen corresponding path program 1 times [2021-12-15 22:06:23,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:23,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631869010] [2021-12-15 22:06:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:23,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:06:23,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:23,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631869010] [2021-12-15 22:06:23,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631869010] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:23,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631521880] [2021-12-15 22:06:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:23,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:23,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:23,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 22:06:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:23,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:06:23,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-15 22:06:23,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:23,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631521880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:23,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:23,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:06:23,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799490391] [2021-12-15 22:06:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:23,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:23,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:23,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:23,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:23,838 INFO L87 Difference]: Start difference. First operand 9249 states and 12625 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:24,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:24,509 INFO L93 Difference]: Finished difference Result 25636 states and 35039 transitions. [2021-12-15 22:06:24,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:24,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2021-12-15 22:06:24,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:24,548 INFO L225 Difference]: With dead ends: 25636 [2021-12-15 22:06:24,548 INFO L226 Difference]: Without dead ends: 16389 [2021-12-15 22:06:24,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:24,562 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 77 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:24,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 392 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:24,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16389 states. [2021-12-15 22:06:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16389 to 16358. [2021-12-15 22:06:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16358 states, 16357 states have (on average 1.3326404597420065) internal successors, (21798), 16357 states have internal predecessors, (21798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16358 states to 16358 states and 21798 transitions. [2021-12-15 22:06:24,862 INFO L78 Accepts]: Start accepts. Automaton has 16358 states and 21798 transitions. Word has length 205 [2021-12-15 22:06:24,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:24,862 INFO L470 AbstractCegarLoop]: Abstraction has 16358 states and 21798 transitions. [2021-12-15 22:06:24,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:24,863 INFO L276 IsEmpty]: Start isEmpty. Operand 16358 states and 21798 transitions. [2021-12-15 22:06:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-15 22:06:24,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:24,883 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:24,900 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-15 22:06:25,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-15 22:06:25,101 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash 853347488, now seen corresponding path program 1 times [2021-12-15 22:06:25,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:25,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595488463] [2021-12-15 22:06:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:25,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-15 22:06:25,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:25,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595488463] [2021-12-15 22:06:25,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595488463] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:25,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:25,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:25,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244798719] [2021-12-15 22:06:25,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:25,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:25,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:25,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:25,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:25,152 INFO L87 Difference]: Start difference. First operand 16358 states and 21798 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:25,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:25,545 INFO L93 Difference]: Finished difference Result 32473 states and 43230 transitions. [2021-12-15 22:06:25,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:25,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-12-15 22:06:25,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:25,576 INFO L225 Difference]: With dead ends: 32473 [2021-12-15 22:06:25,576 INFO L226 Difference]: Without dead ends: 16117 [2021-12-15 22:06:25,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:25,593 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 326 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:25,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:06:25,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16117 states. [2021-12-15 22:06:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16117 to 16117. [2021-12-15 22:06:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16117 states, 16116 states have (on average 1.3126706378754034) internal successors, (21155), 16116 states have internal predecessors, (21155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:25,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16117 states to 16117 states and 21155 transitions. [2021-12-15 22:06:25,888 INFO L78 Accepts]: Start accepts. Automaton has 16117 states and 21155 transitions. Word has length 225 [2021-12-15 22:06:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:25,888 INFO L470 AbstractCegarLoop]: Abstraction has 16117 states and 21155 transitions. [2021-12-15 22:06:25,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:25,889 INFO L276 IsEmpty]: Start isEmpty. Operand 16117 states and 21155 transitions. [2021-12-15 22:06:25,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-15 22:06:25,912 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:25,912 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:25,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:06:25,913 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:25,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1912961228, now seen corresponding path program 1 times [2021-12-15 22:06:25,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:25,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361254212] [2021-12-15 22:06:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:25,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-15 22:06:25,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:25,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361254212] [2021-12-15 22:06:25,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361254212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:25,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:25,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:06:25,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41113520] [2021-12-15 22:06:25,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:25,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:25,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:25,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:25,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:25,998 INFO L87 Difference]: Start difference. First operand 16117 states and 21155 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:26,651 INFO L93 Difference]: Finished difference Result 32018 states and 42034 transitions. [2021-12-15 22:06:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-12-15 22:06:26,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:26,675 INFO L225 Difference]: With dead ends: 32018 [2021-12-15 22:06:26,676 INFO L226 Difference]: Without dead ends: 15903 [2021-12-15 22:06:26,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:26,692 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 224 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:26,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 331 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:26,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15903 states. [2021-12-15 22:06:26,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15903 to 15901. [2021-12-15 22:06:26,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15901 states, 15900 states have (on average 1.2457861635220127) internal successors, (19808), 15900 states have internal predecessors, (19808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15901 states to 15901 states and 19808 transitions. [2021-12-15 22:06:26,973 INFO L78 Accepts]: Start accepts. Automaton has 15901 states and 19808 transitions. Word has length 270 [2021-12-15 22:06:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:26,973 INFO L470 AbstractCegarLoop]: Abstraction has 15901 states and 19808 transitions. [2021-12-15 22:06:26,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:26,973 INFO L276 IsEmpty]: Start isEmpty. Operand 15901 states and 19808 transitions. [2021-12-15 22:06:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2021-12-15 22:06:27,000 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:27,000 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:27,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:06:27,001 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:27,001 INFO L85 PathProgramCache]: Analyzing trace with hash 812815309, now seen corresponding path program 1 times [2021-12-15 22:06:27,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:27,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408691834] [2021-12-15 22:06:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:27,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-15 22:06:27,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:27,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408691834] [2021-12-15 22:06:27,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408691834] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482313105] [2021-12-15 22:06:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:27,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:27,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:27,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:27,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 22:06:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:27,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:06:27,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:27,587 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-15 22:06:27,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:27,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482313105] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:27,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:27,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:06:27,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122547862] [2021-12-15 22:06:27,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:27,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:27,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:27,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:27,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:27,589 INFO L87 Difference]: Start difference. First operand 15901 states and 19808 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:28,378 INFO L93 Difference]: Finished difference Result 39940 states and 50055 transitions. [2021-12-15 22:06:28,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:28,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2021-12-15 22:06:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:28,411 INFO L225 Difference]: With dead ends: 39940 [2021-12-15 22:06:28,411 INFO L226 Difference]: Without dead ends: 24041 [2021-12-15 22:06:28,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:28,422 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 226 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:28,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 105 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24041 states. [2021-12-15 22:06:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24041 to 23429. [2021-12-15 22:06:28,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23429 states, 23428 states have (on average 1.2361277104319617) internal successors, (28960), 23428 states have internal predecessors, (28960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23429 states to 23429 states and 28960 transitions. [2021-12-15 22:06:28,670 INFO L78 Accepts]: Start accepts. Automaton has 23429 states and 28960 transitions. Word has length 271 [2021-12-15 22:06:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:28,671 INFO L470 AbstractCegarLoop]: Abstraction has 23429 states and 28960 transitions. [2021-12-15 22:06:28,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 23429 states and 28960 transitions. [2021-12-15 22:06:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-12-15 22:06:28,695 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:28,695 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:28,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 22:06:28,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:28,909 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:28,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:28,909 INFO L85 PathProgramCache]: Analyzing trace with hash -31610328, now seen corresponding path program 1 times [2021-12-15 22:06:28,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:28,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063477957] [2021-12-15 22:06:28,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:28,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:28,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-12-15 22:06:28,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063477957] [2021-12-15 22:06:28,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063477957] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:28,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621007700] [2021-12-15 22:06:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:28,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:28,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:28,996 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:29,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 22:06:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:29,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:06:29,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-15 22:06:29,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:29,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621007700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:29,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:29,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:06:29,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290068568] [2021-12-15 22:06:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:29,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:29,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:29,537 INFO L87 Difference]: Start difference. First operand 23429 states and 28960 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:30,251 INFO L93 Difference]: Finished difference Result 46652 states and 57625 transitions. [2021-12-15 22:06:30,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:30,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2021-12-15 22:06:30,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:30,282 INFO L225 Difference]: With dead ends: 46652 [2021-12-15 22:06:30,283 INFO L226 Difference]: Without dead ends: 23225 [2021-12-15 22:06:30,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:30,301 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 158 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:30,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 373 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 22:06:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23225 states. [2021-12-15 22:06:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23225 to 22613. [2021-12-15 22:06:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22613 states, 22612 states have (on average 1.1676101185211392) internal successors, (26402), 22612 states have internal predecessors, (26402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22613 states to 22613 states and 26402 transitions. [2021-12-15 22:06:30,636 INFO L78 Accepts]: Start accepts. Automaton has 22613 states and 26402 transitions. Word has length 273 [2021-12-15 22:06:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:30,636 INFO L470 AbstractCegarLoop]: Abstraction has 22613 states and 26402 transitions. [2021-12-15 22:06:30,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 22613 states and 26402 transitions. [2021-12-15 22:06:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-15 22:06:30,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:30,656 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:30,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 22:06:30,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:30,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:30,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:30,874 INFO L85 PathProgramCache]: Analyzing trace with hash -359149375, now seen corresponding path program 1 times [2021-12-15 22:06:30,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:30,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322838401] [2021-12-15 22:06:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:30,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-15 22:06:30,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:30,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322838401] [2021-12-15 22:06:30,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322838401] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:30,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:30,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:30,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927461304] [2021-12-15 22:06:30,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:30,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:30,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:30,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:30,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:30,999 INFO L87 Difference]: Start difference. First operand 22613 states and 26402 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:31,670 INFO L93 Difference]: Finished difference Result 47669 states and 55546 transitions. [2021-12-15 22:06:31,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-12-15 22:06:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:31,730 INFO L225 Difference]: With dead ends: 47669 [2021-12-15 22:06:31,743 INFO L226 Difference]: Without dead ends: 25058 [2021-12-15 22:06:31,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:31,752 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 197 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:31,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 136 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25058 states. [2021-12-15 22:06:32,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25058 to 24848. [2021-12-15 22:06:32,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24848 states, 24847 states have (on average 1.1619108946754135) internal successors, (28870), 24847 states have internal predecessors, (28870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:32,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24848 states to 24848 states and 28870 transitions. [2021-12-15 22:06:32,208 INFO L78 Accepts]: Start accepts. Automaton has 24848 states and 28870 transitions. Word has length 310 [2021-12-15 22:06:32,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:32,208 INFO L470 AbstractCegarLoop]: Abstraction has 24848 states and 28870 transitions. [2021-12-15 22:06:32,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 2 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:32,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24848 states and 28870 transitions. [2021-12-15 22:06:32,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-15 22:06:32,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:32,233 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:32,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 22:06:32,234 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:32,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1861938032, now seen corresponding path program 1 times [2021-12-15 22:06:32,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:32,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238314539] [2021-12-15 22:06:32,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:32,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-15 22:06:32,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:32,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238314539] [2021-12-15 22:06:32,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238314539] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:32,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:32,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:32,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430832535] [2021-12-15 22:06:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:32,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:32,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:32,310 INFO L87 Difference]: Start difference. First operand 24848 states and 28870 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:32,999 INFO L93 Difference]: Finished difference Result 56027 states and 65062 transitions. [2021-12-15 22:06:32,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:33,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-12-15 22:06:33,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:33,040 INFO L225 Difference]: With dead ends: 56027 [2021-12-15 22:06:33,040 INFO L226 Difference]: Without dead ends: 32198 [2021-12-15 22:06:33,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:33,064 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 183 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:33,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 151 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:33,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32198 states. [2021-12-15 22:06:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32198 to 32196. [2021-12-15 22:06:33,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32196 states, 32195 states have (on average 1.1553657400217425) internal successors, (37197), 32195 states have internal predecessors, (37197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32196 states to 32196 states and 37197 transitions. [2021-12-15 22:06:33,636 INFO L78 Accepts]: Start accepts. Automaton has 32196 states and 37197 transitions. Word has length 310 [2021-12-15 22:06:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:33,637 INFO L470 AbstractCegarLoop]: Abstraction has 32196 states and 37197 transitions. [2021-12-15 22:06:33,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 2 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 32196 states and 37197 transitions. [2021-12-15 22:06:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-12-15 22:06:33,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:33,670 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:33,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 22:06:33,670 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1730872283, now seen corresponding path program 1 times [2021-12-15 22:06:33,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:33,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498726005] [2021-12-15 22:06:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:33,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 147 proven. 6 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-15 22:06:33,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:33,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498726005] [2021-12-15 22:06:33,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498726005] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:33,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431772272] [2021-12-15 22:06:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:33,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:33,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:33,749 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:33,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 22:06:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:33,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:06:33,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2021-12-15 22:06:34,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:34,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431772272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:34,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:34,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-12-15 22:06:34,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124314749] [2021-12-15 22:06:34,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:34,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:34,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:34,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:34,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:34,232 INFO L87 Difference]: Start difference. First operand 32196 states and 37197 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:34,950 INFO L93 Difference]: Finished difference Result 74132 states and 86441 transitions. [2021-12-15 22:06:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:34,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 317 [2021-12-15 22:06:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:35,004 INFO L225 Difference]: With dead ends: 74132 [2021-12-15 22:06:35,005 INFO L226 Difference]: Without dead ends: 43361 [2021-12-15 22:06:35,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:06:35,029 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 209 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:35,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 135 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:35,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43361 states. [2021-12-15 22:06:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43361 to 43358. [2021-12-15 22:06:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43358 states, 43357 states have (on average 1.1203265908619138) internal successors, (48574), 43357 states have internal predecessors, (48574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:35,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43358 states to 43358 states and 48574 transitions. [2021-12-15 22:06:35,663 INFO L78 Accepts]: Start accepts. Automaton has 43358 states and 48574 transitions. Word has length 317 [2021-12-15 22:06:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:35,663 INFO L470 AbstractCegarLoop]: Abstraction has 43358 states and 48574 transitions. [2021-12-15 22:06:35,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:35,664 INFO L276 IsEmpty]: Start isEmpty. Operand 43358 states and 48574 transitions. [2021-12-15 22:06:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-12-15 22:06:35,705 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:35,706 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:35,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 22:06:35,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-15 22:06:35,924 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:35,924 INFO L85 PathProgramCache]: Analyzing trace with hash 92501257, now seen corresponding path program 1 times [2021-12-15 22:06:35,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:35,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133608494] [2021-12-15 22:06:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:35,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 189 proven. 12 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-12-15 22:06:36,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:36,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133608494] [2021-12-15 22:06:36,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133608494] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:36,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246900922] [2021-12-15 22:06:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:36,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:36,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:36,032 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:36,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 22:06:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:36,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:06:36,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 319 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-15 22:06:36,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:36,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246900922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:36,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:36,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:06:36,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369282190] [2021-12-15 22:06:36,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:36,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:36,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:36,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:06:36,851 INFO L87 Difference]: Start difference. First operand 43358 states and 48574 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:37,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:37,237 INFO L93 Difference]: Finished difference Result 109096 states and 122357 transitions. [2021-12-15 22:06:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:37,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-12-15 22:06:37,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:37,313 INFO L225 Difference]: With dead ends: 109096 [2021-12-15 22:06:37,313 INFO L226 Difference]: Without dead ends: 67366 [2021-12-15 22:06:37,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:06:37,345 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 238 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:37,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 891 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 22:06:37,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67366 states. [2021-12-15 22:06:38,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67366 to 64096. [2021-12-15 22:06:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64096 states, 64095 states have (on average 1.1159216787580934) internal successors, (71525), 64095 states have internal predecessors, (71525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64096 states to 64096 states and 71525 transitions. [2021-12-15 22:06:38,315 INFO L78 Accepts]: Start accepts. Automaton has 64096 states and 71525 transitions. Word has length 363 [2021-12-15 22:06:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:38,315 INFO L470 AbstractCegarLoop]: Abstraction has 64096 states and 71525 transitions. [2021-12-15 22:06:38,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:38,316 INFO L276 IsEmpty]: Start isEmpty. Operand 64096 states and 71525 transitions. [2021-12-15 22:06:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-12-15 22:06:38,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:38,383 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:38,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-15 22:06:38,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-15 22:06:38,601 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash 541112746, now seen corresponding path program 1 times [2021-12-15 22:06:38,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:38,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909193023] [2021-12-15 22:06:38,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:38,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:38,733 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-15 22:06:38,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909193023] [2021-12-15 22:06:38,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909193023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:38,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:38,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:06:38,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030791468] [2021-12-15 22:06:38,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:38,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:38,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:38,735 INFO L87 Difference]: Start difference. First operand 64096 states and 71525 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:39,695 INFO L93 Difference]: Finished difference Result 114555 states and 127784 transitions. [2021-12-15 22:06:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:39,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 365 [2021-12-15 22:06:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:39,764 INFO L225 Difference]: With dead ends: 114555 [2021-12-15 22:06:39,765 INFO L226 Difference]: Without dead ends: 52087 [2021-12-15 22:06:39,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:39,801 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 243 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:39,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 334 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52087 states. [2021-12-15 22:06:40,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52087 to 50664. [2021-12-15 22:06:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50664 states, 50663 states have (on average 1.0971320292915934) internal successors, (55584), 50663 states have internal predecessors, (55584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50664 states to 50664 states and 55584 transitions. [2021-12-15 22:06:40,672 INFO L78 Accepts]: Start accepts. Automaton has 50664 states and 55584 transitions. Word has length 365 [2021-12-15 22:06:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:40,673 INFO L470 AbstractCegarLoop]: Abstraction has 50664 states and 55584 transitions. [2021-12-15 22:06:40,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 50664 states and 55584 transitions. [2021-12-15 22:06:40,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2021-12-15 22:06:40,714 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:40,714 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:40,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 22:06:40,715 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:40,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash -480392535, now seen corresponding path program 1 times [2021-12-15 22:06:40,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:40,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432995666] [2021-12-15 22:06:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:40,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-15 22:06:40,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:40,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432995666] [2021-12-15 22:06:40,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432995666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:40,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:06:40,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 22:06:40,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785705549] [2021-12-15 22:06:40,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:40,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:40,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:40,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:40,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:40,798 INFO L87 Difference]: Start difference. First operand 50664 states and 55584 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 2 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:41,561 INFO L93 Difference]: Finished difference Result 102354 states and 112391 transitions. [2021-12-15 22:06:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:41,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 2 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 366 [2021-12-15 22:06:41,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:41,621 INFO L225 Difference]: With dead ends: 102354 [2021-12-15 22:06:41,621 INFO L226 Difference]: Without dead ends: 52912 [2021-12-15 22:06:41,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:06:41,650 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 149 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:41,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 164 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:41,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52912 states. [2021-12-15 22:06:42,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52912 to 50867. [2021-12-15 22:06:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50867 states, 50866 states have (on average 1.0975897456061023) internal successors, (55830), 50866 states have internal predecessors, (55830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50867 states to 50867 states and 55830 transitions. [2021-12-15 22:06:42,614 INFO L78 Accepts]: Start accepts. Automaton has 50867 states and 55830 transitions. Word has length 366 [2021-12-15 22:06:42,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:42,614 INFO L470 AbstractCegarLoop]: Abstraction has 50867 states and 55830 transitions. [2021-12-15 22:06:42,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 2 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 50867 states and 55830 transitions. [2021-12-15 22:06:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-12-15 22:06:42,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:06:42,652 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:42,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 22:06:42,653 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:06:42,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:06:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash -518876699, now seen corresponding path program 1 times [2021-12-15 22:06:42,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:06:42,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254308956] [2021-12-15 22:06:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:42,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:06:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 213 proven. 6 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-12-15 22:06:42,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:06:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254308956] [2021-12-15 22:06:42,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254308956] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 22:06:42,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819172834] [2021-12-15 22:06:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:06:42,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:42,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:06:42,837 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 22:06:42,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-15 22:06:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:06:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 22:06:42,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:06:43,511 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-12-15 22:06:43,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:06:43,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819172834] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:06:43,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 22:06:43,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-15 22:06:43,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232521605] [2021-12-15 22:06:43,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:06:43,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:06:43,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:06:43,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:06:43,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:06:43,513 INFO L87 Difference]: Start difference. First operand 50867 states and 55830 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:06:44,369 INFO L93 Difference]: Finished difference Result 94203 states and 103377 transitions. [2021-12-15 22:06:44,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:06:44,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 371 [2021-12-15 22:06:44,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:06:44,371 INFO L225 Difference]: With dead ends: 94203 [2021-12-15 22:06:44,371 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 22:06:44,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 22:06:44,392 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 84 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:06:44,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 337 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 22:06:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 22:06:44,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 22:06:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:44,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 22:06:44,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2021-12-15 22:06:44,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:06:44,394 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 22:06:44,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:06:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 22:06:44,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 22:06:44,396 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:06:44,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-15 22:06:44,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 22:06:44,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 22:06:50,812 INFO L858 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L1555(line 1555) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L1489(line 1489) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,813 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1624(line 1624) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1558(line 1558) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1492(line 1492) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,814 INFO L858 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1495(line 1495) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1630(line 1630) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L1498(line 1498) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,815 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1633(line 1633) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1501(line 1501) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,816 INFO L858 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1570(line 1570) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L1504(line 1504) no Hoare annotation was computed. [2021-12-15 22:06:50,817 INFO L858 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1507(line 1507) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,818 INFO L858 garLoopResultBuilder]: For program point L1642(line 1642) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1576(line 1576) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1510(line 1510) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,819 INFO L858 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1579(line 1579) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1513(line 1513) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,820 INFO L858 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1516(line 1516) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,821 INFO L858 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1546) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1651(line 1651) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1585(line 1585) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1519(line 1519) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,822 INFO L858 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,823 INFO L858 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,823 INFO L858 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,823 INFO L858 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,823 INFO L858 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,823 INFO L858 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,825 INFO L858 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L1522(line 1522) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2021-12-15 22:06:50,826 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2021-12-15 22:06:50,827 INFO L858 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1657(line 1657) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L1525(line 1525) no Hoare annotation was computed. [2021-12-15 22:06:50,828 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,829 INFO L858 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,829 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,829 INFO L854 garLoopResultBuilder]: At program point L1659(lines 64 1660) the Hoare annotation is: (let ((.cse12 (<= ~a3~0 0)) (.cse9 (= ~a11~0 ~a12~0)) (.cse10 (= ~a11~0 1)) (.cse2 (= ~a27~0 1)) (.cse6 (<= 1 ~a3~0)) (.cse1 (= ~a12~0 1)) (.cse3 (= 0 ~a6~0)) (.cse8 (<= ~a3~0 1)) (.cse0 (= ~a5~0 1)) (.cse5 (= ~a26~0 1)) (.cse7 (= 0 ~a12~0)) (.cse11 (= ~a6~0 1)) (.cse4 (<= ~a11~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse0 .cse3 .cse6 .cse7 .cse4 .cse8) (and .cse0 .cse9 (= ~a20~0 1) .cse10 .cse6 .cse11 .cse8) (and .cse0 .cse1 .cse5 .cse10 .cse3) (and .cse0 .cse10 .cse3 .cse2 .cse7) (and .cse0 .cse9 .cse5 .cse10 .cse12 .cse11) (and .cse0 (= ~a26~0 ~a8~0) (= ~a12~0 ~a8~0) .cse3 .cse2 .cse7 .cse12 .cse4) (and .cse0 .cse2 .cse7 .cse11 .cse4) (and .cse1 .cse0 .cse11 .cse4) (and .cse0 .cse5 .cse10 .cse7 .cse11) (and .cse0 (= ~a6~0 ~a20~0) .cse3 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse10 .cse3 .cse7) (and .cse0 .cse10 .cse2 .cse7 .cse11) (and .cse0 .cse10 .cse3 .cse6 .cse7) (and .cse0 .cse5 .cse3 .cse2 .cse7 .cse12 .cse4) (and .cse0 .cse9 .cse10 .cse2 .cse11) (and .cse0 .cse6 .cse7 .cse11 .cse4) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse11 .cse4))) [2021-12-15 22:06:50,829 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1528(line 1528) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,830 INFO L858 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L861 garLoopResultBuilder]: At program point L1662(lines 1662 1679) the Hoare annotation is: true [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2021-12-15 22:06:50,831 INFO L858 garLoopResultBuilder]: For program point L1531(line 1531) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,832 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L1534(line 1534) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,833 INFO L854 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse12 (<= ~a3~0 0)) (.cse9 (= ~a11~0 ~a12~0)) (.cse10 (= ~a11~0 1)) (.cse2 (= ~a27~0 1)) (.cse6 (<= 1 ~a3~0)) (.cse1 (= ~a12~0 1)) (.cse3 (= 0 ~a6~0)) (.cse8 (<= ~a3~0 1)) (.cse0 (= ~a5~0 1)) (.cse5 (= ~a26~0 1)) (.cse7 (= 0 ~a12~0)) (.cse11 (= ~a6~0 1)) (.cse4 (<= ~a11~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse0 .cse3 .cse6 .cse7 .cse4 .cse8) (and .cse0 .cse9 (= ~a20~0 1) .cse10 .cse6 .cse11 .cse8) (and .cse0 .cse1 .cse5 .cse10 .cse3) (and .cse0 .cse10 .cse3 .cse2 .cse7) (and .cse0 .cse9 .cse5 .cse10 .cse12 .cse11) (and .cse0 (= ~a26~0 ~a8~0) (= ~a12~0 ~a8~0) .cse3 .cse2 .cse7 .cse12 .cse4) (and .cse0 .cse2 .cse7 .cse11 .cse4) (and .cse1 .cse0 .cse11 .cse4) (and .cse0 .cse5 .cse10 .cse7 .cse11) (and .cse0 (= ~a6~0 ~a20~0) .cse3 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse10 .cse3 .cse7) (and .cse0 .cse10 .cse2 .cse7 .cse11) (and .cse0 .cse10 .cse3 .cse6 .cse7) (and .cse0 .cse5 .cse3 .cse2 .cse7 .cse12 .cse4) (and .cse0 .cse9 .cse10 .cse2 .cse11) (and .cse0 .cse6 .cse7 .cse11 .cse4) (and .cse0 .cse1 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse11 .cse4))) [2021-12-15 22:06:50,833 INFO L858 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1537(line 1537) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,834 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2021-12-15 22:06:50,835 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L1540(line 1540) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,836 INFO L858 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1543(line 1543) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L1477(line 1477) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,837 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2021-12-15 22:06:50,838 INFO L858 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L1612(line 1612) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L1546(line 1546) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L1480(line 1480) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,839 INFO L858 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,840 INFO L858 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1615(line 1615) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1549(line 1549) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1483(line 1483) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,841 INFO L858 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1552(line 1552) no Hoare annotation was computed. [2021-12-15 22:06:50,842 INFO L858 garLoopResultBuilder]: For program point L1486(line 1486) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2021-12-15 22:06:50,843 INFO L858 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,844 INFO L858 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,844 INFO L858 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2021-12-15 22:06:50,847 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:06:50,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:06:50,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:06:50 BoogieIcfgContainer [2021-12-15 22:06:50,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:06:50,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:06:50,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:06:50,870 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:06:50,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:06:16" (3/4) ... [2021-12-15 22:06:50,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 22:06:50,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 22:06:50,902 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 22:06:50,904 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 22:06:50,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 22:06:51,049 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 22:06:51,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:06:51,050 INFO L158 Benchmark]: Toolchain (without parser) took 36212.38ms. Allocated memory was 92.3MB in the beginning and 7.7GB in the end (delta: 7.6GB). Free memory was 69.9MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2021-12-15 22:06:51,051 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:06:51,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 650.06ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 39.9MB in the end (delta: 29.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2021-12-15 22:06:51,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.38ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 39.9MB in the beginning and 69.7MB in the end (delta: -29.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-12-15 22:06:51,051 INFO L158 Benchmark]: Boogie Preprocessor took 95.37ms. Allocated memory is still 111.1MB. Free memory was 69.7MB in the beginning and 60.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 22:06:51,052 INFO L158 Benchmark]: RCFGBuilder took 1255.16ms. Allocated memory was 111.1MB in the beginning and 199.2MB in the end (delta: 88.1MB). Free memory was 60.1MB in the beginning and 133.7MB in the end (delta: -73.6MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2021-12-15 22:06:51,052 INFO L158 Benchmark]: TraceAbstraction took 33900.41ms. Allocated memory was 199.2MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 132.8MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2021-12-15 22:06:51,052 INFO L158 Benchmark]: Witness Printer took 179.55ms. Allocated memory is still 7.7GB. Free memory was 6.1GB in the beginning and 6.1GB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-15 22:06:51,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 650.06ms. Allocated memory is still 92.3MB. Free memory was 69.6MB in the beginning and 39.9MB in the end (delta: 29.8MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.38ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 39.9MB in the beginning and 69.7MB in the end (delta: -29.8MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.37ms. Allocated memory is still 111.1MB. Free memory was 69.7MB in the beginning and 60.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1255.16ms. Allocated memory was 111.1MB in the beginning and 199.2MB in the end (delta: 88.1MB). Free memory was 60.1MB in the beginning and 133.7MB in the end (delta: -73.6MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * TraceAbstraction took 33900.41ms. Allocated memory was 199.2MB in the beginning and 7.7GB in the end (delta: 7.5GB). Free memory was 132.8MB in the beginning and 6.1GB in the end (delta: -6.0GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 179.55ms. Allocated memory is still 7.7GB. Free memory was 6.1GB in the beginning and 6.1GB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1546]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.8s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 13.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3498 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3498 mSDsluCounter, 4266 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 611 mSDsCounter, 1718 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10022 IncrementalHoareTripleChecker+Invalid, 11740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1718 mSolverCounterUnsat, 3655 mSDtfsCounter, 10022 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2014 GetRequests, 1980 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64096occurred in iteration=15, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 8250 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 443 NumberOfFragments, 697 HoareAnnotationTreeSize, 3 FomulaSimplifications, 468 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 13350 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 6680 NumberOfCodeBlocks, 6680 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 6655 ConstructedInterpolants, 0 QuantifiedInterpolants, 12877 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3861 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 25 InterpolantComputations, 18 PerfectInterpolantSequences, 4527/4575 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a5 == 1 && a12 == 1) && a27 == 1) && 0 == a6) && a11 <= 0) || ((((a5 == 1 && a12 == 1) && a26 == 1) && 0 == a6) && a11 <= 0)) || (((((a5 == 1 && 0 == a6) && 1 <= a3) && 0 == a12) && a11 <= 0) && a3 <= 1)) || ((((((a5 == 1 && a11 == a12) && a20 == 1) && a11 == 1) && 1 <= a3) && a6 == 1) && a3 <= 1)) || ((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && 0 == a6)) || ((((a5 == 1 && a11 == 1) && 0 == a6) && a27 == 1) && 0 == a12)) || (((((a5 == 1 && a11 == a12) && a26 == 1) && a11 == 1) && a3 <= 0) && a6 == 1)) || (((((((a5 == 1 && a26 == a8) && a12 == a8) && 0 == a6) && a27 == 1) && 0 == a12) && a3 <= 0) && a11 <= 0)) || ((((a5 == 1 && a27 == 1) && 0 == a12) && a6 == 1) && a11 <= 0)) || (((a12 == 1 && a5 == 1) && a6 == 1) && a11 <= 0)) || ((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && a6 == 1)) || (((((a5 == 1 && a6 == a20) && 0 == a6) && a27 == 1) && 0 == a12) && a11 <= 0)) || ((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a6) && 0 == a12)) || ((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && a6 == 1)) || ((((a5 == 1 && a11 == 1) && 0 == a6) && 1 <= a3) && 0 == a12)) || ((((((a5 == 1 && a26 == 1) && 0 == a6) && a27 == 1) && 0 == a12) && a3 <= 0) && a11 <= 0)) || ((((a5 == 1 && a11 == a12) && a11 == 1) && a27 == 1) && a6 == 1)) || ((((a5 == 1 && 1 <= a3) && 0 == a12) && a6 == 1) && a11 <= 0)) || ((((a5 == 1 && a12 == 1) && 0 == a6) && a11 <= 0) && a3 <= 1)) || ((((a5 == 1 && a26 == 1) && 0 == a12) && a6 == 1) && a11 <= 0) - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a5 == 1 && a12 == 1) && a27 == 1) && 0 == a6) && a11 <= 0) || ((((a5 == 1 && a12 == 1) && a26 == 1) && 0 == a6) && a11 <= 0)) || (((((a5 == 1 && 0 == a6) && 1 <= a3) && 0 == a12) && a11 <= 0) && a3 <= 1)) || ((((((a5 == 1 && a11 == a12) && a20 == 1) && a11 == 1) && 1 <= a3) && a6 == 1) && a3 <= 1)) || ((((a5 == 1 && a12 == 1) && a26 == 1) && a11 == 1) && 0 == a6)) || ((((a5 == 1 && a11 == 1) && 0 == a6) && a27 == 1) && 0 == a12)) || (((((a5 == 1 && a11 == a12) && a26 == 1) && a11 == 1) && a3 <= 0) && a6 == 1)) || (((((((a5 == 1 && a26 == a8) && a12 == a8) && 0 == a6) && a27 == 1) && 0 == a12) && a3 <= 0) && a11 <= 0)) || ((((a5 == 1 && a27 == 1) && 0 == a12) && a6 == 1) && a11 <= 0)) || (((a12 == 1 && a5 == 1) && a6 == 1) && a11 <= 0)) || ((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a12) && a6 == 1)) || (((((a5 == 1 && a6 == a20) && 0 == a6) && a27 == 1) && 0 == a12) && a11 <= 0)) || ((((a5 == 1 && a26 == 1) && a11 == 1) && 0 == a6) && 0 == a12)) || ((((a5 == 1 && a11 == 1) && a27 == 1) && 0 == a12) && a6 == 1)) || ((((a5 == 1 && a11 == 1) && 0 == a6) && 1 <= a3) && 0 == a12)) || ((((((a5 == 1 && a26 == 1) && 0 == a6) && a27 == 1) && 0 == a12) && a3 <= 0) && a11 <= 0)) || ((((a5 == 1 && a11 == a12) && a11 == 1) && a27 == 1) && a6 == 1)) || ((((a5 == 1 && 1 <= a3) && 0 == a12) && a6 == 1) && a11 <= 0)) || ((((a5 == 1 && a12 == 1) && 0 == a6) && a11 <= 0) && a3 <= 1)) || ((((a5 == 1 && a26 == 1) && 0 == a12) && a6 == 1) && a11 <= 0) RESULT: Ultimate proved your program to be correct! [2021-12-15 22:06:51,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE