./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_product64.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 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 17:39:26,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 17:39:26,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 17:39:26,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 17:39:26,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 17:39:26,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 17:39:26,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 17:39:26,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 17:39:26,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 17:39:26,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 17:39:26,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 17:39:26,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 17:39:26,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 17:39:26,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 17:39:26,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 17:39:26,106 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 17:39:26,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 17:39:26,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 17:39:26,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 17:39:26,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 17:39:26,116 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 17:39:26,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 17:39:26,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 17:39:26,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 17:39:26,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 17:39:26,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 17:39:26,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 17:39:26,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 17:39:26,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 17:39:26,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 17:39:26,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 17:39:26,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 17:39:26,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 17:39:26,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 17:39:26,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 17:39:26,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 17:39:26,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 17:39:26,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 17:39:26,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 17:39:26,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 17:39:26,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 17:39:26,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 17:39:26,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 17:39:26,171 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 17:39:26,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 17:39:26,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 17:39:26,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 17:39:26,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 17:39:26,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 17:39:26,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 17:39:26,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 17:39:26,174 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 17:39:26,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 17:39:26,175 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 17:39:26,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 17:39:26,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 17:39:26,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 17:39:26,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 17:39:26,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 17:39:26,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 17:39:26,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 17:39:26,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 17:39:26,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 17:39:26,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 17:39:26,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 17:39:26,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 17:39:26,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 17:39:26,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:39:26,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 17:39:26,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 17:39:26,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 17:39:26,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 17:39:26,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 17:39:26,180 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 17:39:26,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 17:39:26,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 17:39:26,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2022-07-22 17:39:26,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 17:39:26,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 17:39:26,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 17:39:26,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 17:39:26,442 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 17:39:26,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-07-22 17:39:26,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9415f69/9c0803a9cee741759920f0ab4f6980dc/FLAG87d652a15 [2022-07-22 17:39:26,937 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 17:39:26,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2022-07-22 17:39:26,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9415f69/9c0803a9cee741759920f0ab4f6980dc/FLAG87d652a15 [2022-07-22 17:39:27,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e9415f69/9c0803a9cee741759920f0ab4f6980dc [2022-07-22 17:39:27,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 17:39:27,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 17:39:27,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 17:39:27,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 17:39:27,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 17:39:27,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d31c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27, skipping insertion in model container [2022-07-22 17:39:27,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 17:39:27,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 17:39:27,524 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-07-22 17:39:27,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:39:27,648 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 17:39:27,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2022-07-22 17:39:27,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 17:39:27,734 INFO L208 MainTranslator]: Completed translation [2022-07-22 17:39:27,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27 WrapperNode [2022-07-22 17:39:27,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 17:39:27,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 17:39:27,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 17:39:27,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 17:39:27,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,794 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 297 [2022-07-22 17:39:27,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 17:39:27,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 17:39:27,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 17:39:27,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 17:39:27,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 17:39:27,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 17:39:27,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 17:39:27,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 17:39:27,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (1/1) ... [2022-07-22 17:39:27,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 17:39:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:27,852 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) [2022-07-22 17:39:27,854 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 [2022-07-22 17:39:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 17:39:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-22 17:39:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-22 17:39:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-22 17:39:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-22 17:39:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-22 17:39:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-22 17:39:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-22 17:39:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-22 17:39:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-22 17:39:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-22 17:39:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-22 17:39:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-22 17:39:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-22 17:39:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-22 17:39:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 17:39:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-22 17:39:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-22 17:39:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 17:39:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 17:39:27,937 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 17:39:27,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 17:39:28,379 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 17:39:28,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 17:39:28,388 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 17:39:28,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:28 BoogieIcfgContainer [2022-07-22 17:39:28,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 17:39:28,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 17:39:28,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 17:39:28,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 17:39:28,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 05:39:27" (1/3) ... [2022-07-22 17:39:28,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e46067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:39:28, skipping insertion in model container [2022-07-22 17:39:28,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 05:39:27" (2/3) ... [2022-07-22 17:39:28,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e46067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 05:39:28, skipping insertion in model container [2022-07-22 17:39:28,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:28" (3/3) ... [2022-07-22 17:39:28,399 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2022-07-22 17:39:28,411 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 17:39:28,412 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 17:39:28,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 17:39:28,475 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ca4437b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2606f133 [2022-07-22 17:39:28,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 17:39:28,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-07-22 17:39:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 17:39:28,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:28,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:28,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1842892420, now seen corresponding path program 1 times [2022-07-22 17:39:28,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:28,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034385314] [2022-07-22 17:39:28,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:28,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:28,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034385314] [2022-07-22 17:39:28,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034385314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:28,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:28,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:39:28,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147157946] [2022-07-22 17:39:28,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:28,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 17:39:28,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:28,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 17:39:28,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:39:28,784 INFO L87 Difference]: Start difference. First operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:28,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:28,837 INFO L93 Difference]: Finished difference Result 208 states and 283 transitions. [2022-07-22 17:39:28,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 17:39:28,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-22 17:39:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:28,851 INFO L225 Difference]: With dead ends: 208 [2022-07-22 17:39:28,851 INFO L226 Difference]: Without dead ends: 99 [2022-07-22 17:39:28,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 17:39:28,859 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:28,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-07-22 17:39:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-07-22 17:39:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 83 states have internal predecessors, (96), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-22 17:39:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2022-07-22 17:39:28,917 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 19 [2022-07-22 17:39:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:28,917 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2022-07-22 17:39:28,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2022-07-22 17:39:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-22 17:39:28,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:28,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:28,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 17:39:28,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:28,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash 750568636, now seen corresponding path program 1 times [2022-07-22 17:39:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:28,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300700329] [2022-07-22 17:39:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:28,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:29,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:29,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300700329] [2022-07-22 17:39:29,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300700329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:29,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:29,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 17:39:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703223741] [2022-07-22 17:39:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:39:29,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:29,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:39:29,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:29,014 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:29,046 INFO L93 Difference]: Finished difference Result 159 states and 207 transitions. [2022-07-22 17:39:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:39:29,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-22 17:39:29,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:29,048 INFO L225 Difference]: With dead ends: 159 [2022-07-22 17:39:29,051 INFO L226 Difference]: Without dead ends: 90 [2022-07-22 17:39:29,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:29,054 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 17 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:29,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:29,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-22 17:39:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-07-22 17:39:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.328358208955224) internal successors, (89), 77 states have internal predecessors, (89), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-22 17:39:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 117 transitions. [2022-07-22 17:39:29,076 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 117 transitions. Word has length 20 [2022-07-22 17:39:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:29,077 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 117 transitions. [2022-07-22 17:39:29,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 117 transitions. [2022-07-22 17:39:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 17:39:29,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:29,079 INFO L195 NwaCegarLoop]: 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] [2022-07-22 17:39:29,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 17:39:29,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:29,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:29,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1483068035, now seen corresponding path program 1 times [2022-07-22 17:39:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:29,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501408113] [2022-07-22 17:39:29,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:29,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501408113] [2022-07-22 17:39:29,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501408113] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:29,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:29,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 17:39:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537561846] [2022-07-22 17:39:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:29,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:29,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:29,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:29,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:39:29,187 INFO L87 Difference]: Start difference. First operand 90 states and 117 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:29,275 INFO L93 Difference]: Finished difference Result 211 states and 278 transitions. [2022-07-22 17:39:29,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 17:39:29,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-22 17:39:29,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:29,280 INFO L225 Difference]: With dead ends: 211 [2022-07-22 17:39:29,281 INFO L226 Difference]: Without dead ends: 128 [2022-07-22 17:39:29,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:29,289 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 180 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:29,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 371 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:29,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-07-22 17:39:29,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2022-07-22 17:39:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 94 states have (on average 1.351063829787234) internal successors, (127), 107 states have internal predecessors, (127), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2022-07-22 17:39:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 164 transitions. [2022-07-22 17:39:29,314 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 164 transitions. Word has length 25 [2022-07-22 17:39:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:29,315 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 164 transitions. [2022-07-22 17:39:29,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 164 transitions. [2022-07-22 17:39:29,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-22 17:39:29,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:29,320 INFO L195 NwaCegarLoop]: 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] [2022-07-22 17:39:29,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 17:39:29,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:29,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:29,323 INFO L85 PathProgramCache]: Analyzing trace with hash 417349686, now seen corresponding path program 1 times [2022-07-22 17:39:29,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:29,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592464659] [2022-07-22 17:39:29,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:29,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:29,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:29,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592464659] [2022-07-22 17:39:29,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592464659] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:29,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:29,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 17:39:29,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456260909] [2022-07-22 17:39:29,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:29,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:29,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:29,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 17:39:29,408 INFO L87 Difference]: Start difference. First operand 125 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:29,473 INFO L93 Difference]: Finished difference Result 349 states and 479 transitions. [2022-07-22 17:39:29,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:39:29,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-22 17:39:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:29,479 INFO L225 Difference]: With dead ends: 349 [2022-07-22 17:39:29,479 INFO L226 Difference]: Without dead ends: 231 [2022-07-22 17:39:29,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:39:29,486 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 88 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:29,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 476 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:29,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-07-22 17:39:29,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2022-07-22 17:39:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 195 states have internal predecessors, (229), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (41), 22 states have call predecessors, (41), 36 states have call successors, (41) [2022-07-22 17:39:29,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 306 transitions. [2022-07-22 17:39:29,505 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 306 transitions. Word has length 28 [2022-07-22 17:39:29,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:29,506 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 306 transitions. [2022-07-22 17:39:29,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,506 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 306 transitions. [2022-07-22 17:39:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 17:39:29,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:29,507 INFO L195 NwaCegarLoop]: 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] [2022-07-22 17:39:29,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 17:39:29,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:29,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1384596677, now seen corresponding path program 1 times [2022-07-22 17:39:29,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:29,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308767560] [2022-07-22 17:39:29,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:29,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:29,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:29,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308767560] [2022-07-22 17:39:29,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308767560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:29,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:29,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 17:39:29,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031178688] [2022-07-22 17:39:29,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:29,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 17:39:29,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:29,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 17:39:29,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:29,545 INFO L87 Difference]: Start difference. First operand 231 states and 306 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:29,582 INFO L93 Difference]: Finished difference Result 511 states and 692 transitions. [2022-07-22 17:39:29,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 17:39:29,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-22 17:39:29,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:29,586 INFO L225 Difference]: With dead ends: 511 [2022-07-22 17:39:29,586 INFO L226 Difference]: Without dead ends: 287 [2022-07-22 17:39:29,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 17:39:29,587 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:29,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 190 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-07-22 17:39:29,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2022-07-22 17:39:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 217 states have (on average 1.271889400921659) internal successors, (276), 234 states have internal predecessors, (276), 34 states have call successors, (34), 32 states have call predecessors, (34), 31 states have return successors, (50), 31 states have call predecessors, (50), 34 states have call successors, (50) [2022-07-22 17:39:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2022-07-22 17:39:29,619 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 30 [2022-07-22 17:39:29,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:29,620 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2022-07-22 17:39:29,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 17:39:29,620 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2022-07-22 17:39:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-22 17:39:29,622 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:29,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:29,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 17:39:29,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:29,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash -263887204, now seen corresponding path program 1 times [2022-07-22 17:39:29,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:29,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415884645] [2022-07-22 17:39:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:29,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:29,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:29,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:29,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415884645] [2022-07-22 17:39:29,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415884645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:29,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:29,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 17:39:29,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108882710] [2022-07-22 17:39:29,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:29,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:39:29,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:29,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:39:29,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 17:39:29,697 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:39:29,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:29,981 INFO L93 Difference]: Finished difference Result 335 states and 428 transitions. [2022-07-22 17:39:29,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 17:39:29,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-22 17:39:29,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:29,984 INFO L225 Difference]: With dead ends: 335 [2022-07-22 17:39:29,984 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 17:39:29,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:39:29,985 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 161 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:29,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 352 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:29,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 17:39:30,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 316. [2022-07-22 17:39:30,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.2572614107883817) internal successors, (303), 264 states have internal predecessors, (303), 38 states have call successors, (38), 32 states have call predecessors, (38), 36 states have return successors, (61), 34 states have call predecessors, (61), 38 states have call successors, (61) [2022-07-22 17:39:30,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 402 transitions. [2022-07-22 17:39:30,015 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 402 transitions. Word has length 32 [2022-07-22 17:39:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:30,017 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 402 transitions. [2022-07-22 17:39:30,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 17:39:30,017 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 402 transitions. [2022-07-22 17:39:30,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 17:39:30,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:30,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:30,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 17:39:30,022 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:30,022 INFO L85 PathProgramCache]: Analyzing trace with hash 285414993, now seen corresponding path program 1 times [2022-07-22 17:39:30,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:30,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476629408] [2022-07-22 17:39:30,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:30,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 17:39:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:30,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:30,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476629408] [2022-07-22 17:39:30,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476629408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:30,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:30,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:39:30,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455016520] [2022-07-22 17:39:30,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:30,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:39:30,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:30,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:39:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:30,144 INFO L87 Difference]: Start difference. First operand 316 states and 402 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:30,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:30,527 INFO L93 Difference]: Finished difference Result 693 states and 906 transitions. [2022-07-22 17:39:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 17:39:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2022-07-22 17:39:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:30,531 INFO L225 Difference]: With dead ends: 693 [2022-07-22 17:39:30,531 INFO L226 Difference]: Without dead ends: 384 [2022-07-22 17:39:30,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-07-22 17:39:30,533 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 208 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:30,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 515 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 17:39:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-07-22 17:39:30,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 346. [2022-07-22 17:39:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 266 states have (on average 1.236842105263158) internal successors, (329), 289 states have internal predecessors, (329), 38 states have call successors, (38), 32 states have call predecessors, (38), 41 states have return successors, (64), 38 states have call predecessors, (64), 38 states have call successors, (64) [2022-07-22 17:39:30,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 431 transitions. [2022-07-22 17:39:30,560 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 431 transitions. Word has length 59 [2022-07-22 17:39:30,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:30,561 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 431 transitions. [2022-07-22 17:39:30,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 431 transitions. [2022-07-22 17:39:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 17:39:30,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:30,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:30,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 17:39:30,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:30,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:30,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1185571886, now seen corresponding path program 1 times [2022-07-22 17:39:30,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:30,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128787046] [2022-07-22 17:39:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:30,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:39:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:30,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:30,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128787046] [2022-07-22 17:39:30,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128787046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:30,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:30,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 17:39:30,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233664526] [2022-07-22 17:39:30,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:30,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 17:39:30,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:30,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 17:39:30,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:30,677 INFO L87 Difference]: Start difference. First operand 346 states and 431 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:30,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:30,969 INFO L93 Difference]: Finished difference Result 672 states and 857 transitions. [2022-07-22 17:39:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:39:30,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-22 17:39:30,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:30,973 INFO L225 Difference]: With dead ends: 672 [2022-07-22 17:39:30,973 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 17:39:30,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-07-22 17:39:30,974 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 224 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:30,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 311 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:30,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 17:39:30,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 279. [2022-07-22 17:39:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 214 states have (on average 1.233644859813084) internal successors, (264), 232 states have internal predecessors, (264), 32 states have call successors, (32), 27 states have call predecessors, (32), 32 states have return successors, (49), 30 states have call predecessors, (49), 32 states have call successors, (49) [2022-07-22 17:39:30,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 345 transitions. [2022-07-22 17:39:30,993 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 345 transitions. Word has length 56 [2022-07-22 17:39:30,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:30,994 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 345 transitions. [2022-07-22 17:39:30,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 345 transitions. [2022-07-22 17:39:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 17:39:30,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:30,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:30,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 17:39:30,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1247611500, now seen corresponding path program 1 times [2022-07-22 17:39:30,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:31,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859133909] [2022-07-22 17:39:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:31,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 17:39:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:31,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:31,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859133909] [2022-07-22 17:39:31,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859133909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:31,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 17:39:31,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 17:39:31,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864300728] [2022-07-22 17:39:31,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:31,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 17:39:31,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:31,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 17:39:31,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 17:39:31,127 INFO L87 Difference]: Start difference. First operand 279 states and 345 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:31,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:31,511 INFO L93 Difference]: Finished difference Result 617 states and 805 transitions. [2022-07-22 17:39:31,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 17:39:31,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-22 17:39:31,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:31,515 INFO L225 Difference]: With dead ends: 617 [2022-07-22 17:39:31,515 INFO L226 Difference]: Without dead ends: 418 [2022-07-22 17:39:31,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-07-22 17:39:31,519 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 240 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:31,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 477 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 17:39:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2022-07-22 17:39:31,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 407. [2022-07-22 17:39:31,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 314 states have (on average 1.21656050955414) internal successors, (382), 337 states have internal predecessors, (382), 46 states have call successors, (46), 40 states have call predecessors, (46), 46 states have return successors, (84), 47 states have call predecessors, (84), 46 states have call successors, (84) [2022-07-22 17:39:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 512 transitions. [2022-07-22 17:39:31,550 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 512 transitions. Word has length 56 [2022-07-22 17:39:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 512 transitions. [2022-07-22 17:39:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-22 17:39:31,551 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 512 transitions. [2022-07-22 17:39:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 17:39:31,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:31,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:31,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 17:39:31,554 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:31,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:31,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1661930304, now seen corresponding path program 1 times [2022-07-22 17:39:31,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:31,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31688949] [2022-07-22 17:39:31,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:31,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 17:39:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 17:39:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 17:39:31,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:31,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31688949] [2022-07-22 17:39:31,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31688949] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:31,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484227994] [2022-07-22 17:39:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:31,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:31,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:31,719 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) [2022-07-22 17:39:31,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 17:39:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:31,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 17:39:31,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 17:39:32,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 17:39:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 17:39:32,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484227994] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 17:39:32,208 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 17:39:32,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-07-22 17:39:32,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138125453] [2022-07-22 17:39:32,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 17:39:32,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 17:39:32,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 17:39:32,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-22 17:39:32,210 INFO L87 Difference]: Start difference. First operand 407 states and 512 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 17:39:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:32,940 INFO L93 Difference]: Finished difference Result 968 states and 1279 transitions. [2022-07-22 17:39:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 17:39:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2022-07-22 17:39:32,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:32,944 INFO L225 Difference]: With dead ends: 968 [2022-07-22 17:39:32,945 INFO L226 Difference]: Without dead ends: 641 [2022-07-22 17:39:32,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 226 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2022-07-22 17:39:32,947 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 292 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:32,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 617 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 17:39:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-07-22 17:39:32,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 557. [2022-07-22 17:39:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 425 states have (on average 1.223529411764706) internal successors, (520), 458 states have internal predecessors, (520), 66 states have call successors, (66), 57 states have call predecessors, (66), 65 states have return successors, (128), 63 states have call predecessors, (128), 66 states have call successors, (128) [2022-07-22 17:39:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 714 transitions. [2022-07-22 17:39:32,978 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 714 transitions. Word has length 103 [2022-07-22 17:39:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:32,979 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 714 transitions. [2022-07-22 17:39:32,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 17:39:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 714 transitions. [2022-07-22 17:39:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-22 17:39:32,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:32,982 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:33,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 17:39:33,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 17:39:33,195 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:33,196 INFO L85 PathProgramCache]: Analyzing trace with hash 745596908, now seen corresponding path program 2 times [2022-07-22 17:39:33,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:33,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810119927] [2022-07-22 17:39:33,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 17:39:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 17:39:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:39:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 17:39:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-22 17:39:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-22 17:39:33,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:33,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810119927] [2022-07-22 17:39:33,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810119927] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:33,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135705278] [2022-07-22 17:39:33,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 17:39:33,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:33,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:33,433 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 17:39:33,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 17:39:33,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 17:39:33,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 17:39:33,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 17:39:33,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 17:39:33,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:39:33,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135705278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:33,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:39:33,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2022-07-22 17:39:33,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007594879] [2022-07-22 17:39:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:33,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 17:39:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 17:39:33,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 17:39:33,650 INFO L87 Difference]: Start difference. First operand 557 states and 714 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 17:39:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:33,951 INFO L93 Difference]: Finished difference Result 1473 states and 1967 transitions. [2022-07-22 17:39:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 17:39:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2022-07-22 17:39:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:33,957 INFO L225 Difference]: With dead ends: 1473 [2022-07-22 17:39:33,957 INFO L226 Difference]: Without dead ends: 995 [2022-07-22 17:39:33,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-07-22 17:39:33,960 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 246 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:33,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 684 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 17:39:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-07-22 17:39:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 972. [2022-07-22 17:39:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 744 states have (on average 1.2231182795698925) internal successors, (910), 792 states have internal predecessors, (910), 111 states have call successors, (111), 100 states have call predecessors, (111), 116 states have return successors, (207), 113 states have call predecessors, (207), 111 states have call successors, (207) [2022-07-22 17:39:34,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1228 transitions. [2022-07-22 17:39:34,018 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1228 transitions. Word has length 150 [2022-07-22 17:39:34,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:34,018 INFO L495 AbstractCegarLoop]: Abstraction has 972 states and 1228 transitions. [2022-07-22 17:39:34,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-22 17:39:34,019 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1228 transitions. [2022-07-22 17:39:34,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-22 17:39:34,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 17:39:34,022 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:34,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 17:39:34,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-22 17:39:34,243 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 17:39:34,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 17:39:34,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1699537066, now seen corresponding path program 1 times [2022-07-22 17:39:34,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 17:39:34,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380220863] [2022-07-22 17:39:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 17:39:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 17:39:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 17:39:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 17:39:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 17:39:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-22 17:39:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-22 17:39:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 17:39:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:34,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 17:39:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-22 17:39:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 17:39:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 17:39:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-07-22 17:39:34,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 17:39:34,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380220863] [2022-07-22 17:39:34,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380220863] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 17:39:34,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952222319] [2022-07-22 17:39:34,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 17:39:34,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:34,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 17:39:34,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 17:39:34,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 17:39:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 17:39:34,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 17:39:34,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 17:39:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-22 17:39:34,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 17:39:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952222319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 17:39:34,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 17:39:34,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2022-07-22 17:39:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724461457] [2022-07-22 17:39:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 17:39:34,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 17:39:34,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 17:39:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 17:39:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-22 17:39:34,558 INFO L87 Difference]: Start difference. First operand 972 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 17:39:34,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 17:39:34,607 INFO L93 Difference]: Finished difference Result 1348 states and 1689 transitions. [2022-07-22 17:39:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 17:39:34,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2022-07-22 17:39:34,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 17:39:34,608 INFO L225 Difference]: With dead ends: 1348 [2022-07-22 17:39:34,608 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 17:39:34,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-22 17:39:34,614 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 9 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 17:39:34,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 443 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 17:39:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 17:39:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 17:39:34,615 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) [2022-07-22 17:39:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 17:39:34,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2022-07-22 17:39:34,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 17:39:34,615 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 17:39:34,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-22 17:39:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 17:39:34,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 17:39:34,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 17:39:34,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 17:39:34,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 17:39:34,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 17:39:37,018 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 406 413) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,018 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 406 413) no Hoare annotation was computed. [2022-07-22 17:39:37,018 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 406 413) no Hoare annotation was computed. [2022-07-22 17:39:37,018 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 296 302) no Hoare annotation was computed. [2022-07-22 17:39:37,018 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 296 302) the Hoare annotation is: true [2022-07-22 17:39:37,019 INFO L899 garLoopResultBuilder]: For program point L928-1(lines 924 935) no Hoare annotation was computed. [2022-07-22 17:39:37,019 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 924 935) the Hoare annotation is: true [2022-07-22 17:39:37,019 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 924 935) no Hoare annotation was computed. [2022-07-22 17:39:37,019 INFO L895 garLoopResultBuilder]: At program point L159(lines 154 161) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,019 INFO L899 garLoopResultBuilder]: For program point L283-1(lines 283 289) no Hoare annotation was computed. [2022-07-22 17:39:37,019 INFO L895 garLoopResultBuilder]: At program point L370(line 370) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,019 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,020 INFO L895 garLoopResultBuilder]: At program point L973(lines 968 976) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= 0 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse3 .cse4) (not .cse5) .cse6) (or (and (<= 2 ~waterLevel~0) .cse7) (and .cse2 (<= 1 ~waterLevel~0) .cse3) .cse5 .cse6) (or .cse0 .cse5 (and .cse4 .cse7) .cse6) (or .cse0 .cse1 (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-07-22 17:39:37,020 INFO L895 garLoopResultBuilder]: At program point L362(line 362) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,020 INFO L899 garLoopResultBuilder]: For program point L362-1(line 362) no Hoare annotation was computed. [2022-07-22 17:39:37,020 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 272 295) no Hoare annotation was computed. [2022-07-22 17:39:37,020 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse0 .cse2 (not .cse3)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-22 17:39:37,020 INFO L895 garLoopResultBuilder]: At program point L375-1(lines 356 380) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 (and .cse4 (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse4 .cse5) .cse1 (and .cse3 .cse5))))) [2022-07-22 17:39:37,020 INFO L899 garLoopResultBuilder]: For program point L276-1(lines 275 294) no Hoare annotation was computed. [2022-07-22 17:39:37,020 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 183) no Hoare annotation was computed. [2022-07-22 17:39:37,020 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 186) no Hoare annotation was computed. [2022-07-22 17:39:37,021 INFO L895 garLoopResultBuilder]: At program point L173-1(lines 165 189) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|)) (.cse4 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse6 (= 0 ~systemActive~0)) (.cse7 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|)) (.cse8 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse3 .cse4 .cse5) (not (<= 1 |old(~waterLevel~0)|)) (not .cse6)) (or .cse0 (and .cse7 .cse5 .cse8) .cse6 .cse9) (or (and .cse2 .cse3 (<= 1 ~waterLevel~0) .cse4) .cse6 (and .cse7 (<= 2 ~waterLevel~0) .cse8) .cse9))) [2022-07-22 17:39:37,021 INFO L899 garLoopResultBuilder]: For program point L904(lines 904 908) no Hoare annotation was computed. [2022-07-22 17:39:37,021 INFO L895 garLoopResultBuilder]: At program point L904-2(lines 900 911) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,021 INFO L895 garLoopResultBuilder]: At program point L430(lines 425 433) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-22 17:39:37,021 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 372) no Hoare annotation was computed. [2022-07-22 17:39:37,021 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 377) no Hoare annotation was computed. [2022-07-22 17:39:37,022 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-22 17:39:37,022 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 272 295) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 .cse2) .cse3) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (= 0 ~systemActive~0) .cse3))) [2022-07-22 17:39:37,022 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 272 295) no Hoare annotation was computed. [2022-07-22 17:39:37,022 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2022-07-22 17:39:37,022 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-07-22 17:39:37,022 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-07-22 17:39:37,022 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-07-22 17:39:37,023 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2022-07-22 17:39:37,023 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-07-22 17:39:37,023 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-07-22 17:39:37,023 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-07-22 17:39:37,023 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-07-22 17:39:37,023 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-07-22 17:39:37,023 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-07-22 17:39:37,024 INFO L895 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2022-07-22 17:39:37,024 INFO L895 garLoopResultBuilder]: At program point L250(lines 203 252) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2022-07-22 17:39:37,024 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2022-07-22 17:39:37,024 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 213 219) no Hoare annotation was computed. [2022-07-22 17:39:37,024 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 209) no Hoare annotation was computed. [2022-07-22 17:39:37,024 INFO L895 garLoopResultBuilder]: At program point L1031(lines 1026 1034) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:37,024 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 17:39:37,025 INFO L895 garLoopResultBuilder]: At program point L1023(lines 1019 1025) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:37,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 17:39:37,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 17:39:37,025 INFO L895 garLoopResultBuilder]: At program point L528(lines 523 530) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-07-22 17:39:37,025 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-07-22 17:39:37,025 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-07-22 17:39:37,025 INFO L895 garLoopResultBuilder]: At program point L520(lines 508 522) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 1 ~waterLevel~0) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 17:39:37,026 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2022-07-22 17:39:37,026 INFO L902 garLoopResultBuilder]: At program point L256(lines 193 260) the Hoare annotation is: true [2022-07-22 17:39:37,026 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2022-07-22 17:39:37,026 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 512 518) no Hoare annotation was computed. [2022-07-22 17:39:37,026 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 223 229) no Hoare annotation was computed. [2022-07-22 17:39:37,026 INFO L902 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2022-07-22 17:39:37,027 INFO L895 garLoopResultBuilder]: At program point L1016(lines 1012 1018) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:37,027 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2022-07-22 17:39:37,027 INFO L902 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2022-07-22 17:39:37,027 INFO L895 garLoopResultBuilder]: At program point L253(lines 202 254) the Hoare annotation is: false [2022-07-22 17:39:37,027 INFO L895 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:37,027 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 247) no Hoare annotation was computed. [2022-07-22 17:39:37,027 INFO L895 garLoopResultBuilder]: At program point L241-2(lines 233 248) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2022-07-22 17:39:37,028 INFO L899 garLoopResultBuilder]: For program point L204(lines 203 252) no Hoare annotation was computed. [2022-07-22 17:39:37,028 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 248) no Hoare annotation was computed. [2022-07-22 17:39:37,028 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-07-22 17:39:37,028 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 304 328) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,028 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2022-07-22 17:39:37,028 INFO L895 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (not (<= 1 ~waterLevel~0)) .cse1) (or (not (= ~waterLevel~0 1)) .cse0 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) .cse1))) [2022-07-22 17:39:37,028 INFO L899 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 320) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L899 garLoopResultBuilder]: For program point L981(lines 981 987) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 325) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L895 garLoopResultBuilder]: At program point L323(line 323) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,029 INFO L899 garLoopResultBuilder]: For program point L323-1(lines 304 328) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 304 328) no Hoare annotation was computed. [2022-07-22 17:39:37,029 INFO L895 garLoopResultBuilder]: At program point L986(lines 977 990) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0))) [2022-07-22 17:39:37,030 INFO L899 garLoopResultBuilder]: For program point L396(lines 396 402) no Hoare annotation was computed. [2022-07-22 17:39:37,030 INFO L895 garLoopResultBuilder]: At program point L394(line 394) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (= ~pumpRunning~0 0) (not (<= 2 ~waterLevel~0)) .cse1) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2022-07-22 17:39:37,030 INFO L895 garLoopResultBuilder]: At program point L396-2(lines 389 405) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,030 INFO L899 garLoopResultBuilder]: For program point L394-1(line 394) no Hoare annotation was computed. [2022-07-22 17:39:37,030 INFO L895 garLoopResultBuilder]: At program point L485(lines 470 488) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 0)) .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) .cse2))) [2022-07-22 17:39:37,030 INFO L895 garLoopResultBuilder]: At program point L386(lines 381 388) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,031 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 912 923) no Hoare annotation was computed. [2022-07-22 17:39:37,031 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 912 923) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|)) .cse0) (or .cse0 (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-22 17:39:37,031 INFO L899 garLoopResultBuilder]: For program point L916-1(lines 912 923) no Hoare annotation was computed. [2022-07-22 17:39:37,031 INFO L895 garLoopResultBuilder]: At program point L349(line 349) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,031 INFO L899 garLoopResultBuilder]: For program point L349-1(lines 330 354) no Hoare annotation was computed. [2022-07-22 17:39:37,031 INFO L895 garLoopResultBuilder]: At program point L504(lines 489 507) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~3#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:37,031 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 502) no Hoare annotation was computed. [2022-07-22 17:39:37,032 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 502) no Hoare annotation was computed. [2022-07-22 17:39:37,032 INFO L895 garLoopResultBuilder]: At program point L996(lines 991 999) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:37,032 INFO L895 garLoopResultBuilder]: At program point L344(line 344) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,032 INFO L895 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~3#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~4#1|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-22 17:39:37,032 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 346) no Hoare annotation was computed. [2022-07-22 17:39:37,032 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 330 354) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-22 17:39:37,033 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 351) no Hoare annotation was computed. [2022-07-22 17:39:37,033 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 330 354) no Hoare annotation was computed. [2022-07-22 17:39:37,033 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 414 424) the Hoare annotation is: true [2022-07-22 17:39:37,033 INFO L902 garLoopResultBuilder]: At program point L941(lines 936 944) the Hoare annotation is: true [2022-07-22 17:39:37,033 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 414 424) no Hoare annotation was computed. [2022-07-22 17:39:37,033 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 414 424) no Hoare annotation was computed. [2022-07-22 17:39:37,036 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 17:39:37,038 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 17:39:37,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 05:39:37 BoogieIcfgContainer [2022-07-22 17:39:37,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 17:39:37,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 17:39:37,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 17:39:37,060 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 17:39:37,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 05:39:28" (3/4) ... [2022-07-22 17:39:37,063 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 17:39:37,068 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-22 17:39:37,069 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-22 17:39:37,070 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-22 17:39:37,070 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-22 17:39:37,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-07-22 17:39:37,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-22 17:39:37,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 17:39:37,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 17:39:37,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 17:39:37,078 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 17:39:37,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 17:39:37,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-22 17:39:37,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-22 17:39:37,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) || ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) [2022-07-22 17:39:37,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:37,100 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-07-22 17:39:37,100 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && !(0 == systemActive)) [2022-07-22 17:39:37,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-07-22 17:39:37,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && 0 == systemActive [2022-07-22 17:39:37,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || 0 == systemActive) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) [2022-07-22 17:39:37,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-22 17:39:37,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-22 17:39:37,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive [2022-07-22 17:39:37,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive [2022-07-22 17:39:37,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive [2022-07-22 17:39:37,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || 0 == systemActive) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && \result == 0) && tmp == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-22 17:39:37,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-22 17:39:37,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((!(tmp == 0) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0)) || 0 == systemActive) [2022-07-22 17:39:37,123 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 17:39:37,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 17:39:37,128 INFO L158 Benchmark]: Toolchain (without parser) took 9816.69ms. Allocated memory was 102.8MB in the beginning and 207.6MB in the end (delta: 104.9MB). Free memory was 69.3MB in the beginning and 107.8MB in the end (delta: -38.4MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,128 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 17:39:37,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.01ms. Allocated memory is still 102.8MB. Free memory was 69.1MB in the beginning and 69.2MB in the end (delta: -24.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,129 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.71ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 66.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,129 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 65.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,129 INFO L158 Benchmark]: RCFGBuilder took 567.00ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 102.7MB in the end (delta: -37.7MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,130 INFO L158 Benchmark]: TraceAbstraction took 8667.36ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 102.7MB in the beginning and 114.1MB in the end (delta: -11.4MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,130 INFO L158 Benchmark]: Witness Printer took 67.21ms. Allocated memory is still 207.6MB. Free memory was 114.1MB in the beginning and 107.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 17:39:37,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 423.01ms. Allocated memory is still 102.8MB. Free memory was 69.1MB in the beginning and 69.2MB in the end (delta: -24.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.71ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 66.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 102.8MB. Free memory was 66.6MB in the beginning and 65.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.00ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 65.0MB in the beginning and 102.7MB in the end (delta: -37.7MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8667.36ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 102.7MB in the beginning and 114.1MB in the end (delta: -11.4MB). Peak memory consumption was 123.4MB. Max. memory is 16.1GB. * Witness Printer took 67.21ms. Allocated memory is still 207.6MB. Free memory was 114.1MB in the beginning and 107.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 158]: 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 10 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1760 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1733 mSDsluCounter, 4784 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3209 mSDsCounter, 502 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2392 IncrementalHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 502 mSolverCounterUnsat, 1575 mSDtfsCounter, 2392 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 759 GetRequests, 634 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=11, InterpolantAutomatonStates: 111, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 234 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 1778 PreInvPairs, 1920 NumberOfFragments, 1138 HoareAnnotationTreeSize, 1778 FomulaSimplifications, 1977 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 51 FomulaSimplificationsInter, 7370 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1131 NumberOfCodeBlocks, 1131 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1218 ConstructedInterpolants, 0 QuantifiedInterpolants, 2110 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1702 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 449/507 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 991]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((!(tmp == 0) && pumpRunning == 0) && tmp___0 == 0) && !(\result == 0)) && \result == 0)) || 0 == systemActive) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && 0 == systemActive - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1012]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || 0 == systemActive) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) || ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 1026]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || 0 == systemActive) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && \result == 0) && tmp == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 1019]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-07-22 17:39:37,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE