./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/product-lines/minepump_spec4_product50.cil.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 a73dafdc853fd09794b169fd90326076ad938e4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:44:54,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:44:54,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:44:54,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:44:54,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:44:54,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:44:54,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:44:54,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:44:54,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:44:54,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:44:54,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:44:54,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:44:54,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:44:54,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:44:54,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:44:54,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:44:54,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:44:54,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:44:54,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:44:54,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:44:54,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:44:54,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:44:54,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:44:54,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:44:54,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:44:54,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:44:54,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:44:54,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:44:54,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:44:54,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:44:54,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:44:54,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:44:54,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:44:54,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:44:54,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:44:54,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:44:54,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:44:54,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:44:54,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:44:54,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:44:54,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:44:54,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:44:54,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:44:54,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:44:54,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:44:54,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:44:54,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:44:54,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:44:54,981 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:44:54,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:44:54,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:44:54,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:44:54,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:44:54,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:44:54,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:44:54,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:44:54,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:44:54,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:44:54,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:54,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:44:54,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:44:54,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:44:54,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:44:54,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:44:54,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:44:54,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:44:54,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a73dafdc853fd09794b169fd90326076ad938e4b [2021-08-26 08:44:55,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:44:55,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:44:55,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:44:55,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:44:55,240 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:44:55,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-08-26 08:44:55,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b15ebe717/1c73909316104acdb197cb671520c2da/FLAG0f7e7346b [2021-08-26 08:44:55,708 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:44:55,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-08-26 08:44:55,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b15ebe717/1c73909316104acdb197cb671520c2da/FLAG0f7e7346b [2021-08-26 08:44:55,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b15ebe717/1c73909316104acdb197cb671520c2da [2021-08-26 08:44:55,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:44:55,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:44:55,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:55,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:44:55,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:44:55,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:55" (1/1) ... [2021-08-26 08:44:55,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de177be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:55, skipping insertion in model container [2021-08-26 08:44:55,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:44:55" (1/1) ... [2021-08-26 08:44:55,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:44:55,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:44:55,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[12686,12699] [2021-08-26 08:44:55,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:55,949 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:44:55,994 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[12686,12699] [2021-08-26 08:44:56,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:44:56,031 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:44:56,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56 WrapperNode [2021-08-26 08:44:56,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:44:56,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:56,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:44:56,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:44:56,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:44:56,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:44:56,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:44:56,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:44:56,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:44:56,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:44:56,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:44:56,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:44:56,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (1/1) ... [2021-08-26 08:44:56,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:56,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:56,154 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) [2021-08-26 08:44:56,173 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 [2021-08-26 08:44:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:44:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:44:56,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:44:56,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:44:56,855 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:44:56,855 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-08-26 08:44:56,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:56 BoogieIcfgContainer [2021-08-26 08:44:56,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:44:56,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:44:56,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:44:56,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:44:56,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:44:55" (1/3) ... [2021-08-26 08:44:56,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252728ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:56, skipping insertion in model container [2021-08-26 08:44:56,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:44:56" (2/3) ... [2021-08-26 08:44:56,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252728ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:44:56, skipping insertion in model container [2021-08-26 08:44:56,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:56" (3/3) ... [2021-08-26 08:44:56,863 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2021-08-26 08:44:56,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:44:56,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:44:56,909 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:44:56,914 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 08:44:56,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:44:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 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) [2021-08-26 08:44:56,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 08:44:56,934 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:56,934 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:56,935 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1800894747, now seen corresponding path program 1 times [2021-08-26 08:44:56,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:56,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867328602] [2021-08-26 08:44:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:56,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867328602] [2021-08-26 08:44:57,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867328602] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:44:57,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791715530] [2021-08-26 08:44:57,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:44:57,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:44:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:57,166 INFO L87 Difference]: Start difference. First operand has 117 states, 113 states have (on average 1.5663716814159292) internal successors, (177), 116 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) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-08-26 08:44:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,200 INFO L93 Difference]: Finished difference Result 228 states and 347 transitions. [2021-08-26 08:44:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:44:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-08-26 08:44:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,208 INFO L225 Difference]: With dead ends: 228 [2021-08-26 08:44:57,208 INFO L226 Difference]: Without dead ends: 113 [2021-08-26 08:44:57,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:44:57,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-08-26 08:44:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-08-26 08:44:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 110 states have (on average 1.5) internal successors, (165), 112 states have internal predecessors, (165), 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) [2021-08-26 08:44:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2021-08-26 08:44:57,247 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2021-08-26 08:44:57,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,248 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2021-08-26 08:44:57,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-08-26 08:44:57,249 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2021-08-26 08:44:57,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 08:44:57,251 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,251 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:57,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:44:57,252 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1447315652, now seen corresponding path program 1 times [2021-08-26 08:44:57,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118201127] [2021-08-26 08:44:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118201127] [2021-08-26 08:44:57,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118201127] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:57,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858625920] [2021-08-26 08:44:57,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:57,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:57,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,364 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-08-26 08:44:57,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,375 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-08-26 08:44:57,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:57,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-08-26 08:44:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,386 INFO L225 Difference]: With dead ends: 113 [2021-08-26 08:44:57,387 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 08:44:57,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 08:44:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 08:44:57,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4782608695652173) internal successors, (68), 46 states have internal predecessors, (68), 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) [2021-08-26 08:44:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-08-26 08:44:57,396 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-08-26 08:44:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,396 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-08-26 08:44:57,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-08-26 08:44:57,397 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-08-26 08:44:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 08:44:57,398 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,398 INFO L512 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] [2021-08-26 08:44:57,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:44:57,398 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,399 INFO L82 PathProgramCache]: Analyzing trace with hash -230586389, now seen corresponding path program 1 times [2021-08-26 08:44:57,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989188394] [2021-08-26 08:44:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989188394] [2021-08-26 08:44:57,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989188394] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:57,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443018346] [2021-08-26 08:44:57,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:57,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,469 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-08-26 08:44:57,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,487 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2021-08-26 08:44:57,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:57,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-08-26 08:44:57,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,489 INFO L225 Difference]: With dead ends: 88 [2021-08-26 08:44:57,490 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 08:44:57,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 08:44:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 08:44:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 46 states have internal predecessors, (67), 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) [2021-08-26 08:44:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-08-26 08:44:57,499 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2021-08-26 08:44:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,499 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-08-26 08:44:57,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-08-26 08:44:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-08-26 08:44:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:44:57,501 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,501 INFO L512 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] [2021-08-26 08:44:57,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:44:57,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,502 INFO L82 PathProgramCache]: Analyzing trace with hash -108421843, now seen corresponding path program 1 times [2021-08-26 08:44:57,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946454586] [2021-08-26 08:44:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946454586] [2021-08-26 08:44:57,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946454586] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:44:57,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031034025] [2021-08-26 08:44:57,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:44:57,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:44:57,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,557 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-08-26 08:44:57,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,596 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2021-08-26 08:44:57,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:44:57,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2021-08-26 08:44:57,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,597 INFO L225 Difference]: With dead ends: 109 [2021-08-26 08:44:57,597 INFO L226 Difference]: Without dead ends: 68 [2021-08-26 08:44:57,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:44:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-08-26 08:44:57,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2021-08-26 08:44:57,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 65 states have internal predecessors, (93), 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) [2021-08-26 08:44:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-08-26 08:44:57,601 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2021-08-26 08:44:57,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,601 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-08-26 08:44:57,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2021-08-26 08:44:57,601 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-08-26 08:44:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 08:44:57,602 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,602 INFO L512 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] [2021-08-26 08:44:57,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:44:57,602 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1619186466, now seen corresponding path program 1 times [2021-08-26 08:44:57,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463118250] [2021-08-26 08:44:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463118250] [2021-08-26 08:44:57,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463118250] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:57,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489903635] [2021-08-26 08:44:57,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:57,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:57,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:57,640 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-08-26 08:44:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,678 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2021-08-26 08:44:57,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:44:57,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-08-26 08:44:57,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,679 INFO L225 Difference]: With dead ends: 175 [2021-08-26 08:44:57,679 INFO L226 Difference]: Without dead ends: 115 [2021-08-26 08:44:57,680 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:44:57,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-08-26 08:44:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2021-08-26 08:44:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 71 states have internal predecessors, (99), 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) [2021-08-26 08:44:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2021-08-26 08:44:57,684 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2021-08-26 08:44:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,684 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2021-08-26 08:44:57,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-08-26 08:44:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2021-08-26 08:44:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 08:44:57,685 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,685 INFO L512 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] [2021-08-26 08:44:57,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:44:57,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1043324577, now seen corresponding path program 1 times [2021-08-26 08:44:57,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770627128] [2021-08-26 08:44:57,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770627128] [2021-08-26 08:44:57,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770627128] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,729 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:44:57,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233543251] [2021-08-26 08:44:57,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:57,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:57,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:57,731 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-08-26 08:44:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,789 INFO L93 Difference]: Finished difference Result 253 states and 355 transitions. [2021-08-26 08:44:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:44:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-08-26 08:44:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,790 INFO L225 Difference]: With dead ends: 253 [2021-08-26 08:44:57,790 INFO L226 Difference]: Without dead ends: 187 [2021-08-26 08:44:57,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:44:57,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-08-26 08:44:57,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2021-08-26 08:44:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 114 states have internal predecessors, (155), 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) [2021-08-26 08:44:57,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 155 transitions. [2021-08-26 08:44:57,796 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 155 transitions. Word has length 30 [2021-08-26 08:44:57,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,797 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 155 transitions. [2021-08-26 08:44:57,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-08-26 08:44:57,797 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 155 transitions. [2021-08-26 08:44:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:44:57,798 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,798 INFO L512 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] [2021-08-26 08:44:57,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 08:44:57,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,799 INFO L82 PathProgramCache]: Analyzing trace with hash -964491617, now seen corresponding path program 1 times [2021-08-26 08:44:57,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646521103] [2021-08-26 08:44:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646521103] [2021-08-26 08:44:57,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646521103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:44:57,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192514196] [2021-08-26 08:44:57,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:44:57,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:44:57,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:44:57,827 INFO L87 Difference]: Start difference. First operand 115 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-08-26 08:44:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,902 INFO L93 Difference]: Finished difference Result 238 states and 327 transitions. [2021-08-26 08:44:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:44:57,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-08-26 08:44:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,903 INFO L225 Difference]: With dead ends: 238 [2021-08-26 08:44:57,903 INFO L226 Difference]: Without dead ends: 172 [2021-08-26 08:44:57,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:44:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-26 08:44:57,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2021-08-26 08:44:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 1.3571428571428572) internal successors, (228), 168 states have internal predecessors, (228), 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) [2021-08-26 08:44:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 228 transitions. [2021-08-26 08:44:57,910 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 228 transitions. Word has length 31 [2021-08-26 08:44:57,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,911 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 228 transitions. [2021-08-26 08:44:57,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-08-26 08:44:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 228 transitions. [2021-08-26 08:44:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:44:57,912 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,912 INFO L512 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] [2021-08-26 08:44:57,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 08:44:57,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,912 INFO L82 PathProgramCache]: Analyzing trace with hash -706326179, now seen corresponding path program 1 times [2021-08-26 08:44:57,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616168479] [2021-08-26 08:44:57,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:57,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:57,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616168479] [2021-08-26 08:44:57,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616168479] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:57,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:57,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:44:57,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773170365] [2021-08-26 08:44:57,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:44:57,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:57,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:44:57,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:44:57,952 INFO L87 Difference]: Start difference. First operand 169 states and 228 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-08-26 08:44:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:57,985 INFO L93 Difference]: Finished difference Result 400 states and 551 transitions. [2021-08-26 08:44:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:44:57,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2021-08-26 08:44:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:57,986 INFO L225 Difference]: With dead ends: 400 [2021-08-26 08:44:57,987 INFO L226 Difference]: Without dead ends: 279 [2021-08-26 08:44:57,987 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-08-26 08:44:57,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 163. [2021-08-26 08:44:57,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.3580246913580247) internal successors, (220), 162 states have internal predecessors, (220), 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) [2021-08-26 08:44:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 220 transitions. [2021-08-26 08:44:57,994 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 220 transitions. Word has length 31 [2021-08-26 08:44:57,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:57,994 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 220 transitions. [2021-08-26 08:44:57,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2021-08-26 08:44:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 220 transitions. [2021-08-26 08:44:57,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 08:44:57,995 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:57,995 INFO L512 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] [2021-08-26 08:44:57,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 08:44:57,995 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:57,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:57,996 INFO L82 PathProgramCache]: Analyzing trace with hash 533103064, now seen corresponding path program 1 times [2021-08-26 08:44:57,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:57,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851219054] [2021-08-26 08:44:57,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:57,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:58,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:58,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851219054] [2021-08-26 08:44:58,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851219054] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:58,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:58,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:58,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591023349] [2021-08-26 08:44:58,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:58,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:58,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:58,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:58,033 INFO L87 Difference]: Start difference. First operand 163 states and 220 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-08-26 08:44:58,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:58,133 INFO L93 Difference]: Finished difference Result 353 states and 482 transitions. [2021-08-26 08:44:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:44:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-08-26 08:44:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:58,134 INFO L225 Difference]: With dead ends: 353 [2021-08-26 08:44:58,134 INFO L226 Difference]: Without dead ends: 238 [2021-08-26 08:44:58,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:44:58,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-08-26 08:44:58,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 159. [2021-08-26 08:44:58,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 1.3417721518987342) internal successors, (212), 158 states have internal predecessors, (212), 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) [2021-08-26 08:44:58,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 212 transitions. [2021-08-26 08:44:58,141 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 212 transitions. Word has length 31 [2021-08-26 08:44:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:58,141 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 212 transitions. [2021-08-26 08:44:58,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-08-26 08:44:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 212 transitions. [2021-08-26 08:44:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-26 08:44:58,142 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:58,142 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:44:58,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 08:44:58,143 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:58,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:58,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1625643979, now seen corresponding path program 1 times [2021-08-26 08:44:58,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:58,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031452124] [2021-08-26 08:44:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:58,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 08:44:58,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:58,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031452124] [2021-08-26 08:44:58,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031452124] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:58,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:58,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:58,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313391253] [2021-08-26 08:44:58,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:58,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:58,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:58,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:58,177 INFO L87 Difference]: Start difference. First operand 159 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2021-08-26 08:44:58,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:58,222 INFO L93 Difference]: Finished difference Result 335 states and 448 transitions. [2021-08-26 08:44:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:44:58,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 50 [2021-08-26 08:44:58,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:58,225 INFO L225 Difference]: With dead ends: 335 [2021-08-26 08:44:58,225 INFO L226 Difference]: Without dead ends: 182 [2021-08-26 08:44:58,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:44:58,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-08-26 08:44:58,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 135. [2021-08-26 08:44:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.3134328358208955) internal successors, (176), 134 states have internal predecessors, (176), 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) [2021-08-26 08:44:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 176 transitions. [2021-08-26 08:44:58,232 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 176 transitions. Word has length 50 [2021-08-26 08:44:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:58,232 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 176 transitions. [2021-08-26 08:44:58,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2021-08-26 08:44:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 176 transitions. [2021-08-26 08:44:58,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-26 08:44:58,234 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:58,235 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:44:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 08:44:58,235 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:58,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:58,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1653055247, now seen corresponding path program 1 times [2021-08-26 08:44:58,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:58,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740352946] [2021-08-26 08:44:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:58,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,282 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:44:58,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:58,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740352946] [2021-08-26 08:44:58,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740352946] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:58,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:58,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:58,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809624842] [2021-08-26 08:44:58,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:58,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:58,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:58,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:58,284 INFO L87 Difference]: Start difference. First operand 135 states and 176 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-08-26 08:44:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:58,329 INFO L93 Difference]: Finished difference Result 449 states and 597 transitions. [2021-08-26 08:44:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:44:58,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 51 [2021-08-26 08:44:58,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:58,331 INFO L225 Difference]: With dead ends: 449 [2021-08-26 08:44:58,331 INFO L226 Difference]: Without dead ends: 344 [2021-08-26 08:44:58,332 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:44:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-08-26 08:44:58,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 138. [2021-08-26 08:44:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.3065693430656935) internal successors, (179), 137 states have internal predecessors, (179), 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) [2021-08-26 08:44:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2021-08-26 08:44:58,340 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 51 [2021-08-26 08:44:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:58,341 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2021-08-26 08:44:58,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-08-26 08:44:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2021-08-26 08:44:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-08-26 08:44:58,342 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:58,342 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:44:58,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 08:44:58,342 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:58,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash -2046082257, now seen corresponding path program 1 times [2021-08-26 08:44:58,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:58,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056395055] [2021-08-26 08:44:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:58,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:44:58,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:58,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056395055] [2021-08-26 08:44:58,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056395055] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:58,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:58,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:58,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721796188] [2021-08-26 08:44:58,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:58,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:58,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:58,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:58,383 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-08-26 08:44:58,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:58,462 INFO L93 Difference]: Finished difference Result 347 states and 455 transitions. [2021-08-26 08:44:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:44:58,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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 51 [2021-08-26 08:44:58,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:58,464 INFO L225 Difference]: With dead ends: 347 [2021-08-26 08:44:58,464 INFO L226 Difference]: Without dead ends: 345 [2021-08-26 08:44:58,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:44:58,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-08-26 08:44:58,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 138. [2021-08-26 08:44:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 137 states have (on average 1.2992700729927007) internal successors, (178), 137 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) [2021-08-26 08:44:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 178 transitions. [2021-08-26 08:44:58,472 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 178 transitions. Word has length 51 [2021-08-26 08:44:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:58,472 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 178 transitions. [2021-08-26 08:44:58,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-08-26 08:44:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 178 transitions. [2021-08-26 08:44:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-26 08:44:58,473 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:58,473 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-08-26 08:44:58,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 08:44:58,473 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:58,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:58,481 INFO L82 PathProgramCache]: Analyzing trace with hash 772811102, now seen corresponding path program 1 times [2021-08-26 08:44:58,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:58,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025170283] [2021-08-26 08:44:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:58,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:58,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:58,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025170283] [2021-08-26 08:44:58,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025170283] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:44:58,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436928252] [2021-08-26 08:44:58,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:58,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:44:58,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:44:58,526 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) [2021-08-26 08:44:58,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 08:44:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:58,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 08:44:58,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 08:44:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:44:58,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436928252] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:44:58,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 08:44:58,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-26 08:44:58,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144211222] [2021-08-26 08:44:58,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:44:58,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:58,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:44:58,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:44:58,901 INFO L87 Difference]: Start difference. First operand 138 states and 178 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-08-26 08:44:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:59,037 INFO L93 Difference]: Finished difference Result 427 states and 563 transitions. [2021-08-26 08:44:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:44:59,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-08-26 08:44:59,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:59,038 INFO L225 Difference]: With dead ends: 427 [2021-08-26 08:44:59,038 INFO L226 Difference]: Without dead ends: 319 [2021-08-26 08:44:59,039 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 42.0ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-08-26 08:44:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-08-26 08:44:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 195. [2021-08-26 08:44:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.309278350515464) internal successors, (254), 194 states have internal predecessors, (254), 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) [2021-08-26 08:44:59,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 254 transitions. [2021-08-26 08:44:59,052 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 254 transitions. Word has length 52 [2021-08-26 08:44:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:59,052 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 254 transitions. [2021-08-26 08:44:59,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-08-26 08:44:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 254 transitions. [2021-08-26 08:44:59,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-08-26 08:44:59,053 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:59,053 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-08-26 08:44:59,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 08:44:59,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-08-26 08:44:59,269 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:59,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:59,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1104899688, now seen corresponding path program 2 times [2021-08-26 08:44:59,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:59,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510765806] [2021-08-26 08:44:59,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:59,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:59,380 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:44:59,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:59,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510765806] [2021-08-26 08:44:59,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510765806] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:59,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:59,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:59,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401667849] [2021-08-26 08:44:59,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:59,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:59,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:59,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:59,382 INFO L87 Difference]: Start difference. First operand 195 states and 254 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-08-26 08:44:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:59,545 INFO L93 Difference]: Finished difference Result 569 states and 755 transitions. [2021-08-26 08:44:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:44:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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 73 [2021-08-26 08:44:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:59,547 INFO L225 Difference]: With dead ends: 569 [2021-08-26 08:44:59,547 INFO L226 Difference]: Without dead ends: 403 [2021-08-26 08:44:59,548 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:44:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-08-26 08:44:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 268. [2021-08-26 08:44:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.299625468164794) internal successors, (347), 267 states have internal predecessors, (347), 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) [2021-08-26 08:44:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 347 transitions. [2021-08-26 08:44:59,567 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 347 transitions. Word has length 73 [2021-08-26 08:44:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:59,567 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 347 transitions. [2021-08-26 08:44:59,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 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) [2021-08-26 08:44:59,568 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 347 transitions. [2021-08-26 08:44:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-08-26 08:44:59,568 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:44:59,568 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:44:59,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-26 08:44:59,569 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:44:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:44:59,569 INFO L82 PathProgramCache]: Analyzing trace with hash -830140074, now seen corresponding path program 1 times [2021-08-26 08:44:59,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:44:59,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419267926] [2021-08-26 08:44:59,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:44:59,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:44:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:44:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-26 08:44:59,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:44:59,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419267926] [2021-08-26 08:44:59,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419267926] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:44:59,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:44:59,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:44:59,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258497786] [2021-08-26 08:44:59,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:44:59,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:44:59,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:44:59,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:44:59,615 INFO L87 Difference]: Start difference. First operand 268 states and 347 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-26 08:44:59,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:44:59,669 INFO L93 Difference]: Finished difference Result 471 states and 609 transitions. [2021-08-26 08:44:59,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:44:59,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 73 [2021-08-26 08:44:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:44:59,669 INFO L225 Difference]: With dead ends: 471 [2021-08-26 08:44:59,669 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 08:44:59,671 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:44:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 08:44:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 08:44:59,671 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) [2021-08-26 08:44:59,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 08:44:59,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2021-08-26 08:44:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:44:59,672 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 08:44:59,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-08-26 08:44:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 08:44:59,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 08:44:59,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:59,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:59,674 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:44:59,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-26 08:44:59,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 08:44:59,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:44:59,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:00,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:03,105 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-2(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-3(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-5(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L853 garLoopResultBuilder]: At program point L665(lines 660 668) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-6(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L853 garLoopResultBuilder]: At program point L665-1(lines 660 668) the Hoare annotation is: false [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-8(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L853 garLoopResultBuilder]: At program point L665-2(lines 660 668) the Hoare annotation is: false [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-9(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L853 garLoopResultBuilder]: At program point L500(lines 496 502) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-11(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-12(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,106 INFO L857 garLoopResultBuilder]: For program point L863-14(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L863-15(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L863-17(lines 863 867) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L765(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L931(lines 931 937) no Hoare annotation was computed. [2021-08-26 08:45:03,107 INFO L853 garLoopResultBuilder]: At program point L931-1(lines 931 937) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-08-26 08:45:03,107 INFO L860 garLoopResultBuilder]: At program point L536(lines 517 539) the Hoare annotation is: true [2021-08-26 08:45:03,107 INFO L857 garLoopResultBuilder]: For program point L735(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L853 garLoopResultBuilder]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse1 (= ~waterLevel~0 1)) (and .cse0 .cse2 (<= 2 ~waterLevel~0) .cse1))) [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L853 garLoopResultBuilder]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2021-08-26 08:45:03,108 INFO L853 garLoopResultBuilder]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2021-08-26 08:45:03,108 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,108 INFO L853 garLoopResultBuilder]: At program point L869(lines 854 872) the Hoare annotation is: false [2021-08-26 08:45:03,108 INFO L853 garLoopResultBuilder]: At program point L869-1(lines 854 872) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and (not .cse4) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 (<= 1 ~waterLevel~0) (not .cse2)))) [2021-08-26 08:45:03,109 INFO L853 garLoopResultBuilder]: At program point L869-2(lines 854 872) the Hoare annotation is: false [2021-08-26 08:45:03,109 INFO L853 garLoopResultBuilder]: At program point L869-3(lines 854 872) the Hoare annotation is: false [2021-08-26 08:45:03,109 INFO L853 garLoopResultBuilder]: At program point L869-4(lines 854 872) the Hoare annotation is: false [2021-08-26 08:45:03,109 INFO L853 garLoopResultBuilder]: At program point L869-5(lines 854 872) the Hoare annotation is: false [2021-08-26 08:45:03,109 INFO L853 garLoopResultBuilder]: At program point L572(lines 1 966) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:03,109 INFO L857 garLoopResultBuilder]: For program point L739(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,109 INFO L857 garLoopResultBuilder]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,109 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,109 INFO L857 garLoopResultBuilder]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,109 INFO L857 garLoopResultBuilder]: For program point L673-1(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L673-2(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L673-3(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L673-4(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L673-5(lines 673 679) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 612) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L857 garLoopResultBuilder]: For program point L941(lines 941 954) no Hoare annotation was computed. [2021-08-26 08:45:03,110 INFO L853 garLoopResultBuilder]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)))) [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2021-08-26 08:45:03,111 INFO L857 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,111 INFO L857 garLoopResultBuilder]: For program point L545-1(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,111 INFO L857 garLoopResultBuilder]: For program point L545-2(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L678(lines 669 682) the Hoare annotation is: false [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L678-1(lines 669 682) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L678-2(lines 669 682) the Hoare annotation is: false [2021-08-26 08:45:03,111 INFO L853 garLoopResultBuilder]: At program point L678-3(lines 669 682) the Hoare annotation is: false [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L678-4(lines 669 682) the Hoare annotation is: false [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L678-5(lines 669 682) the Hoare annotation is: false [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L580(lines 575 583) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L449-2(lines 449 463) the Hoare annotation is: false [2021-08-26 08:45:03,112 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 08:45:03,112 INFO L857 garLoopResultBuilder]: For program point L912(lines 911 958) no Hoare annotation was computed. [2021-08-26 08:45:03,112 INFO L857 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2021-08-26 08:45:03,112 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 917) no Hoare annotation was computed. [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L814(lines 809 817) the Hoare annotation is: false [2021-08-26 08:45:03,112 INFO L853 garLoopResultBuilder]: At program point L814-1(lines 809 817) the Hoare annotation is: false [2021-08-26 08:45:03,113 INFO L853 garLoopResultBuilder]: At program point L814-2(lines 809 817) the Hoare annotation is: false [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:03,113 INFO L853 garLoopResultBuilder]: At program point L419-1(lines 1 966) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse1 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse2 .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 .cse2 .cse1 (= ~waterLevel~0 1)))) [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:03,113 INFO L853 garLoopResultBuilder]: At program point L419-3(lines 1 966) the Hoare annotation is: false [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2021-08-26 08:45:03,113 INFO L853 garLoopResultBuilder]: At program point L419-5(lines 1 966) the Hoare annotation is: false [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L882(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L882-2(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,113 INFO L857 garLoopResultBuilder]: For program point L882-3(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L882-5(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L882-6(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L882-8(lines 882 886) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 457) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L453-1(lines 703 709) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 953) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L853 garLoopResultBuilder]: At program point L949-2(lines 703 709) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L620(lines 620 624) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L423(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:03,114 INFO L857 garLoopResultBuilder]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:03,115 INFO L857 garLoopResultBuilder]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L688-1(lines 683 691) the Hoare annotation is: false [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L688-2(lines 683 691) the Hoare annotation is: false [2021-08-26 08:45:03,115 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 08:45:03,115 INFO L857 garLoopResultBuilder]: For program point L921(lines 921 927) no Hoare annotation was computed. [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L921-1(lines 921 927) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) .cse2) (and .cse0 .cse3 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2))) [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L888(lines 873 891) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~8 0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (<= 1 ~waterLevel~0)) [2021-08-26 08:45:03,115 INFO L853 garLoopResultBuilder]: At program point L888-1(lines 873 891) the Hoare annotation is: false [2021-08-26 08:45:03,116 INFO L853 garLoopResultBuilder]: At program point L888-2(lines 873 891) the Hoare annotation is: false [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 534) no Hoare annotation was computed. [2021-08-26 08:45:03,116 INFO L860 garLoopResultBuilder]: At program point L527-1(lines 527 534) the Hoare annotation is: true [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 545) no Hoare annotation was computed. [2021-08-26 08:45:03,116 INFO L853 garLoopResultBuilder]: At program point L959(lines 910 960) the Hoare annotation is: false [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point L761(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:03,116 INFO L857 garLoopResultBuilder]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2021-08-26 08:45:03,117 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 600) no Hoare annotation was computed. [2021-08-26 08:45:03,117 INFO L857 garLoopResultBuilder]: For program point L596-3(lines 596 600) no Hoare annotation was computed. [2021-08-26 08:45:03,117 INFO L857 garLoopResultBuilder]: For program point L596-6(lines 596 600) no Hoare annotation was computed. [2021-08-26 08:45:03,120 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:45:03,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:45:03 BoogieIcfgContainer [2021-08-26 08:45:03,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:45:03,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:45:03,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:45:03,133 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:45:03,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:44:56" (3/4) ... [2021-08-26 08:45:03,135 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 08:45:03,145 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-26 08:45:03,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-26 08:45:03,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 08:45:03,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 08:45:03,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 08:45:03,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:03,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:03,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || (((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) [2021-08-26 08:45:03,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) [2021-08-26 08:45:03,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) [2021-08-26 08:45:03,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && \result == 0) && tmp == 0) && 1 == systemActive) && 1 <= waterLevel [2021-08-26 08:45:03,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) [2021-08-26 08:45:03,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel [2021-08-26 08:45:03,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) || (((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) && !(tmp == 0)) [2021-08-26 08:45:03,206 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:45:03,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:45:03,207 INFO L168 Benchmark]: Toolchain (without parser) took 7477.77 ms. Allocated memory was 56.6 MB in the beginning and 224.4 MB in the end (delta: 167.8 MB). Free memory was 34.9 MB in the beginning and 125.2 MB in the end (delta: -90.3 MB). Peak memory consumption was 77.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,208 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:45:03,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.21 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.6 MB in the beginning and 49.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 45.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,208 INFO L168 Benchmark]: Boogie Preprocessor took 47.08 ms. Allocated memory is still 73.4 MB. Free memory was 45.3 MB in the beginning and 42.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,208 INFO L168 Benchmark]: RCFGBuilder took 731.71 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 35.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,209 INFO L168 Benchmark]: TraceAbstraction took 6273.92 ms. Allocated memory was 73.4 MB in the beginning and 224.4 MB in the end (delta: 151.0 MB). Free memory was 35.2 MB in the beginning and 134.6 MB in the end (delta: -99.4 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,209 INFO L168 Benchmark]: Witness Printer took 74.05 ms. Allocated memory is still 224.4 MB. Free memory was 134.6 MB in the beginning and 125.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:03,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 37.8 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.21 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.6 MB in the beginning and 49.1 MB in the end (delta: -14.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 45.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.08 ms. Allocated memory is still 73.4 MB. Free memory was 45.3 MB in the beginning and 42.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 731.71 ms. Allocated memory is still 73.4 MB. Free memory was 42.7 MB in the beginning and 35.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6273.92 ms. Allocated memory was 73.4 MB in the beginning and 224.4 MB in the end (delta: 151.0 MB). Free memory was 35.2 MB in the beginning and 134.6 MB in the end (delta: -99.4 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.1 GB. * Witness Printer took 74.05 ms. Allocated memory is still 224.4 MB. Free memory was 134.6 MB in the beginning and 125.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 545]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 545]: 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, 117 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6211.5ms, OverallIterations: 15, TraceHistogramMax: 3, EmptinessCheckTime: 19.2ms, AutomataDifference: 1000.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3430.6ms, InitialAbstractionConstructionTime: 11.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1547 SDtfs, 2001 SDslu, 2253 SDs, 0 SdLazy, 373 SolverSat, 66 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 451.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 223.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=14, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 130.8ms AutomataMinimizationTime, 15 MinimizatonAttempts, 1034 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 123 NumberOfFragments, 459 HoareAnnotationTreeSize, 43 FomulaSimplifications, 1777923 FormulaSimplificationTreeSizeReduction, 723.7ms HoareSimplificationTime, 43 FomulaSimplificationsInter, 262402 FormulaSimplificationTreeSizeReductionInter, 2694.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 74.6ms SsaConstructionTime, 305.5ms SatisfiabilityAnalysisTime, 771.9ms InterpolantComputationTime, 634 NumberOfCodeBlocks, 634 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 970 SizeOfPredicates, 3 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 162/168 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 3 specifications checked. All of them hold - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 527]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && tmp == 0) && 1 == systemActive) && 1 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 931]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && \result == 0) || (((((((!(\result == 0) && splverifierCounter == 0) && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) && !(tmp == 0)) - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && 2 <= tmp) && 2 <= waterLevel) && tmp == 0) && 1 == systemActive) && 2 <= \result) && \result == 0) || (((((1 <= tmp && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) && 1 <= \result)) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 660]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && \result == 0) && tmp == 0) && 1 == systemActive) && 1 <= waterLevel - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 669]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((!(\result == 0) && splverifierCounter == 0) && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 910]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 08:45:03,246 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...