./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_spec5_product53.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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:21:01,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:21:01,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:21:01,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:21:01,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:21:01,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:21:01,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:21:01,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:21:01,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:21:01,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:21:01,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:21:01,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:21:01,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:21:01,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:21:01,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:21:01,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:21:01,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:21:01,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:21:01,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:21:01,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:21:01,570 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:21:01,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:21:01,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:21:01,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:21:01,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:21:01,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:21:01,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:21:01,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:21:01,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:21:01,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:21:01,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:21:01,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:21:01,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:21:01,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:21:01,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:21:01,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:21:01,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:21:01,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:21:01,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:21:01,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:21:01,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:21:01,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:21:01,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:21:01,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:21:01,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:21:01,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:21:01,620 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:21:01,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:21:01,621 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:21:01,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:21:01,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:21:01,622 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:21:01,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:21:01,623 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:21:01,623 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:21:01,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:21:01,624 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:21:01,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:21:01,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:21:01,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:21:01,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:21:01,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:21:01,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:21:01,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:21:01,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:21:01,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:21:01,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:21:01,626 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:21:01,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:21:01,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:21:01,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2022-07-12 06:21:01,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:21:01,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:21:01,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:21:01,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:21:01,848 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:21:01,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-07-12 06:21:01,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48c0183f/0344c444e8f345eb8e2aac1c052164c8/FLAGa11e44910 [2022-07-12 06:21:02,342 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:21:02,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2022-07-12 06:21:02,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48c0183f/0344c444e8f345eb8e2aac1c052164c8/FLAGa11e44910 [2022-07-12 06:21:02,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e48c0183f/0344c444e8f345eb8e2aac1c052164c8 [2022-07-12 06:21:02,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:21:02,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:21:02,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:21:02,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:21:02,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:21:02,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:21:02" (1/1) ... [2022-07-12 06:21:02,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@199f8548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:02, skipping insertion in model container [2022-07-12 06:21:02,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:21:02" (1/1) ... [2022-07-12 06:21:02,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:21:02,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:21:03,024 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_spec5_product53.cil.c[17915,17928] [2022-07-12 06:21:03,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:21:03,053 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:21:03,109 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_spec5_product53.cil.c[17915,17928] [2022-07-12 06:21:03,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:21:03,125 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:21:03,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03 WrapperNode [2022-07-12 06:21:03,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:21:03,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:21:03,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:21:03,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:21:03,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,186 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 286 [2022-07-12 06:21:03,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:21:03,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:21:03,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:21:03,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:21:03,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:21:03,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:21:03,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:21:03,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:21:03,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (1/1) ... [2022-07-12 06:21:03,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:21:03,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:03,271 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) [2022-07-12 06:21:03,273 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 [2022-07-12 06:21:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:21:03,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:21:03,299 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:21:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:21:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:21:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:21:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:21:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:21:03,300 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:21:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:21:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:21:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:21:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:21:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-07-12 06:21:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-07-12 06:21:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-12 06:21:03,301 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-12 06:21:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:21:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:21:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:21:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:21:03,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:21:03,362 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:21:03,364 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:21:03,618 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:21:03,624 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:21:03,624 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:21:03,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:21:03 BoogieIcfgContainer [2022-07-12 06:21:03,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:21:03,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:21:03,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:21:03,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:21:03,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:21:02" (1/3) ... [2022-07-12 06:21:03,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee96102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:21:03, skipping insertion in model container [2022-07-12 06:21:03,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:21:03" (2/3) ... [2022-07-12 06:21:03,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee96102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:21:03, skipping insertion in model container [2022-07-12 06:21:03,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:21:03" (3/3) ... [2022-07-12 06:21:03,633 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2022-07-12 06:21:03,643 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:21:03,644 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:21:03,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:21:03,703 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@6d839a94, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e4ef6c9 [2022-07-12 06:21:03,703 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:21:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-12 06:21:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-12 06:21:03,714 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:03,715 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:03,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:03,719 INFO L85 PathProgramCache]: Analyzing trace with hash 836117038, now seen corresponding path program 1 times [2022-07-12 06:21:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:03,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578824600] [2022-07-12 06:21:03,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:03,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:21:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:03,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:21:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:03,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:03,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578824600] [2022-07-12 06:21:03,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578824600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:03,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:03,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:21:03,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942243539] [2022-07-12 06:21:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:03,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:21:03,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:03,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:21:03,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:21:03,950 INFO L87 Difference]: Start difference. First operand has 105 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 88 states have internal predecessors, (107), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:21:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:03,973 INFO L93 Difference]: Finished difference Result 201 states and 272 transitions. [2022-07-12 06:21:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:21:03,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-12 06:21:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:03,981 INFO L225 Difference]: With dead ends: 201 [2022-07-12 06:21:03,981 INFO L226 Difference]: Without dead ends: 96 [2022-07-12 06:21:03,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:21:03,987 INFO L413 NwaCegarLoop]: 133 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, 133 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 [2022-07-12 06:21:03,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:21:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-12 06:21:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-12 06:21:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-12 06:21:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2022-07-12 06:21:04,019 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 124 transitions. Word has length 32 [2022-07-12 06:21:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:04,020 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 124 transitions. [2022-07-12 06:21:04,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:21:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2022-07-12 06:21:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 06:21:04,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:04,023 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:04,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:21:04,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:04,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash 485124754, now seen corresponding path program 1 times [2022-07-12 06:21:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:04,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410536478] [2022-07-12 06:21:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:04,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 06:21:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:04,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:04,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410536478] [2022-07-12 06:21:04,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410536478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:04,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:04,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:21:04,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487884610] [2022-07-12 06:21:04,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:04,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:21:04,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:04,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:21:04,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:21:04,108 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:21:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:04,131 INFO L93 Difference]: Finished difference Result 184 states and 243 transitions. [2022-07-12 06:21:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:21:04,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-07-12 06:21:04,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:04,134 INFO L225 Difference]: With dead ends: 184 [2022-07-12 06:21:04,134 INFO L226 Difference]: Without dead ends: 96 [2022-07-12 06:21:04,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:21:04,136 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 101 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 122 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 [2022-07-12 06:21:04,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:21:04,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-07-12 06:21:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-07-12 06:21:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 71 states have (on average 1.295774647887324) internal successors, (92), 80 states have internal predecessors, (92), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-12 06:21:04,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 123 transitions. [2022-07-12 06:21:04,165 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 123 transitions. Word has length 37 [2022-07-12 06:21:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:04,166 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 123 transitions. [2022-07-12 06:21:04,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:21:04,168 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 123 transitions. [2022-07-12 06:21:04,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:21:04,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:04,171 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:04,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:21:04,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash 88830114, now seen corresponding path program 1 times [2022-07-12 06:21:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:04,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970887609] [2022-07-12 06:21:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:04,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:21:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 06:21:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:04,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:04,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970887609] [2022-07-12 06:21:04,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970887609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:04,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:04,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 06:21:04,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258035360] [2022-07-12 06:21:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:04,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 06:21:04,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:04,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 06:21:04,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 06:21:04,261 INFO L87 Difference]: Start difference. First operand 96 states and 123 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:21:04,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:04,450 INFO L93 Difference]: Finished difference Result 288 states and 392 transitions. [2022-07-12 06:21:04,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:21:04,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:21:04,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:04,453 INFO L225 Difference]: With dead ends: 288 [2022-07-12 06:21:04,454 INFO L226 Difference]: Without dead ends: 200 [2022-07-12 06:21:04,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:21:04,456 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 186 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:04,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 287 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:21:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-07-12 06:21:04,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 182. [2022-07-12 06:21:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 135 states have (on average 1.2740740740740741) internal successors, (172), 143 states have internal predecessors, (172), 26 states have call successors, (26), 17 states have call predecessors, (26), 20 states have return successors, (43), 26 states have call predecessors, (43), 24 states have call successors, (43) [2022-07-12 06:21:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 241 transitions. [2022-07-12 06:21:04,478 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 241 transitions. Word has length 46 [2022-07-12 06:21:04,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:04,479 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 241 transitions. [2022-07-12 06:21:04,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:21:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 241 transitions. [2022-07-12 06:21:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-12 06:21:04,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:04,480 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:04,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:21:04,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:04,481 INFO L85 PathProgramCache]: Analyzing trace with hash 385655368, now seen corresponding path program 1 times [2022-07-12 06:21:04,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:04,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855668026] [2022-07-12 06:21:04,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:04,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:21:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:21:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 06:21:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:04,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:04,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855668026] [2022-07-12 06:21:04,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855668026] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:04,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:04,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 06:21:04,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653719026] [2022-07-12 06:21:04,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:04,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 06:21:04,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:04,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 06:21:04,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 06:21:04,542 INFO L87 Difference]: Start difference. First operand 182 states and 241 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:04,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:04,616 INFO L93 Difference]: Finished difference Result 304 states and 389 transitions. [2022-07-12 06:21:04,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 06:21:04,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2022-07-12 06:21:04,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:04,621 INFO L225 Difference]: With dead ends: 304 [2022-07-12 06:21:04,622 INFO L226 Difference]: Without dead ends: 166 [2022-07-12 06:21:04,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 06:21:04,632 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 72 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:04,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 237 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:21:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-07-12 06:21:04,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2022-07-12 06:21:04,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 123 states have (on average 1.2845528455284554) internal successors, (158), 131 states have internal predecessors, (158), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-12 06:21:04,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 209 transitions. [2022-07-12 06:21:04,655 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 209 transitions. Word has length 52 [2022-07-12 06:21:04,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:04,655 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 209 transitions. [2022-07-12 06:21:04,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:04,655 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 209 transitions. [2022-07-12 06:21:04,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 06:21:04,656 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:04,656 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:04,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:21:04,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:04,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2065653903, now seen corresponding path program 1 times [2022-07-12 06:21:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:04,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573630625] [2022-07-12 06:21:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:04,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 06:21:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 06:21:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:04,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573630625] [2022-07-12 06:21:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573630625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:04,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:04,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:21:04,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945717655] [2022-07-12 06:21:04,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:04,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:21:04,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:04,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:21:04,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:21:04,743 INFO L87 Difference]: Start difference. First operand 164 states and 209 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:04,873 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2022-07-12 06:21:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:21:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 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 [2022-07-12 06:21:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:04,888 INFO L225 Difference]: With dead ends: 328 [2022-07-12 06:21:04,888 INFO L226 Difference]: Without dead ends: 172 [2022-07-12 06:21:04,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:21:04,889 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 73 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:04,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 449 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:21:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-07-12 06:21:04,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2022-07-12 06:21:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 126 states have (on average 1.2777777777777777) internal successors, (161), 134 states have internal predecessors, (161), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-12 06:21:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 212 transitions. [2022-07-12 06:21:04,900 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 212 transitions. Word has length 56 [2022-07-12 06:21:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:04,900 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 212 transitions. [2022-07-12 06:21:04,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 212 transitions. [2022-07-12 06:21:04,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 06:21:04,901 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:04,901 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:04,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:21:04,902 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:04,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:04,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1642952077, now seen corresponding path program 1 times [2022-07-12 06:21:04,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:04,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25076192] [2022-07-12 06:21:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:04,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 06:21:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 06:21:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:04,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:04,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:04,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25076192] [2022-07-12 06:21:04,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25076192] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:04,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:04,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:21:04,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575776800] [2022-07-12 06:21:04,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:04,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:21:04,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:04,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:21:04,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:21:04,949 INFO L87 Difference]: Start difference. First operand 167 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:05,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:05,033 INFO L93 Difference]: Finished difference Result 336 states and 440 transitions. [2022-07-12 06:21:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:21:05,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 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 [2022-07-12 06:21:05,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:05,034 INFO L225 Difference]: With dead ends: 336 [2022-07-12 06:21:05,035 INFO L226 Difference]: Without dead ends: 177 [2022-07-12 06:21:05,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:21:05,036 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 77 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:05,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 350 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:21:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-12 06:21:05,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2022-07-12 06:21:05,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 128 states have (on average 1.2734375) internal successors, (163), 136 states have internal predecessors, (163), 20 states have call successors, (20), 15 states have call predecessors, (20), 20 states have return successors, (31), 22 states have call predecessors, (31), 20 states have call successors, (31) [2022-07-12 06:21:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2022-07-12 06:21:05,046 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 56 [2022-07-12 06:21:05,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:05,047 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2022-07-12 06:21:05,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-12 06:21:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2022-07-12 06:21:05,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-12 06:21:05,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:05,048 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:05,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:21:05,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:05,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:05,049 INFO L85 PathProgramCache]: Analyzing trace with hash 846576885, now seen corresponding path program 1 times [2022-07-12 06:21:05,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:05,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416060913] [2022-07-12 06:21:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:05,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 06:21:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 06:21:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:05,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:05,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416060913] [2022-07-12 06:21:05,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416060913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:05,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:05,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:21:05,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114763575] [2022-07-12 06:21:05,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:05,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:21:05,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:05,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:21:05,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:21:05,142 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-12 06:21:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:05,344 INFO L93 Difference]: Finished difference Result 477 states and 626 transitions. [2022-07-12 06:21:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:21:05,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2022-07-12 06:21:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:05,352 INFO L225 Difference]: With dead ends: 477 [2022-07-12 06:21:05,352 INFO L226 Difference]: Without dead ends: 316 [2022-07-12 06:21:05,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:21:05,354 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 232 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:05,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 361 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 06:21:05,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-07-12 06:21:05,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 308. [2022-07-12 06:21:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 231 states have (on average 1.2467532467532467) internal successors, (288), 243 states have internal predecessors, (288), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2022-07-12 06:21:05,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 394 transitions. [2022-07-12 06:21:05,382 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 394 transitions. Word has length 56 [2022-07-12 06:21:05,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:05,383 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 394 transitions. [2022-07-12 06:21:05,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-12 06:21:05,383 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 394 transitions. [2022-07-12 06:21:05,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-12 06:21:05,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:05,385 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:05,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:21:05,386 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:05,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:05,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1874240715, now seen corresponding path program 1 times [2022-07-12 06:21:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:05,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129185650] [2022-07-12 06:21:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:05,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 06:21:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 06:21:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 06:21:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 06:21:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 06:21:05,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:05,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129185650] [2022-07-12 06:21:05,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129185650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:05,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:05,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:21:05,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265938174] [2022-07-12 06:21:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:05,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:21:05,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:05,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:21:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:21:05,477 INFO L87 Difference]: Start difference. First operand 308 states and 394 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 06:21:05,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:05,660 INFO L93 Difference]: Finished difference Result 624 states and 811 transitions. [2022-07-12 06:21:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 06:21:05,661 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-07-12 06:21:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:05,663 INFO L225 Difference]: With dead ends: 624 [2022-07-12 06:21:05,663 INFO L226 Difference]: Without dead ends: 324 [2022-07-12 06:21:05,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-07-12 06:21:05,665 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 125 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:05,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 492 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:21:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-07-12 06:21:05,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 304. [2022-07-12 06:21:05,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 227 states have (on average 1.2158590308370043) internal successors, (276), 239 states have internal predecessors, (276), 40 states have call successors, (40), 33 states have call predecessors, (40), 36 states have return successors, (66), 41 states have call predecessors, (66), 40 states have call successors, (66) [2022-07-12 06:21:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 382 transitions. [2022-07-12 06:21:05,685 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 382 transitions. Word has length 58 [2022-07-12 06:21:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:05,685 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 382 transitions. [2022-07-12 06:21:05,685 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, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 06:21:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 382 transitions. [2022-07-12 06:21:05,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 06:21:05,686 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:05,687 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 06:21:05,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:21:05,687 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:05,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1421347697, now seen corresponding path program 1 times [2022-07-12 06:21:05,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:05,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411598328] [2022-07-12 06:21:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 06:21:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 06:21:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-12 06:21:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-12 06:21:05,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:05,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411598328] [2022-07-12 06:21:05,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411598328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:05,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:05,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 06:21:05,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867409796] [2022-07-12 06:21:05,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:05,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 06:21:05,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:05,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 06:21:05,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:21:05,816 INFO L87 Difference]: Start difference. First operand 304 states and 382 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-12 06:21:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:06,514 INFO L93 Difference]: Finished difference Result 950 states and 1254 transitions. [2022-07-12 06:21:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-12 06:21:06,515 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2022-07-12 06:21:06,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:06,519 INFO L225 Difference]: With dead ends: 950 [2022-07-12 06:21:06,519 INFO L226 Difference]: Without dead ends: 709 [2022-07-12 06:21:06,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 06:21:06,523 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 552 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:06,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 840 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 06:21:06,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2022-07-12 06:21:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 585. [2022-07-12 06:21:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 437 states have (on average 1.2151029748283753) internal successors, (531), 463 states have internal predecessors, (531), 77 states have call successors, (77), 58 states have call predecessors, (77), 70 states have return successors, (127), 79 states have call predecessors, (127), 77 states have call successors, (127) [2022-07-12 06:21:06,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 735 transitions. [2022-07-12 06:21:06,561 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 735 transitions. Word has length 60 [2022-07-12 06:21:06,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:06,561 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 735 transitions. [2022-07-12 06:21:06,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 8 states have internal predecessors, (47), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-12 06:21:06,561 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 735 transitions. [2022-07-12 06:21:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-12 06:21:06,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:06,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:21:06,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:21:06,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:06,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 118762499, now seen corresponding path program 1 times [2022-07-12 06:21:06,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:06,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082917737] [2022-07-12 06:21:06,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:06,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 06:21:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 06:21:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 06:21:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,647 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 06:21:06,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:06,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082917737] [2022-07-12 06:21:06,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082917737] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:21:06,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629041155] [2022-07-12 06:21:06,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:06,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:06,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:06,664 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) [2022-07-12 06:21:06,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 06:21:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:06,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 06:21:06,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:21:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:21:06,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:21:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-12 06:21:07,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629041155] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:21:07,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:21:07,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2022-07-12 06:21:07,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890959418] [2022-07-12 06:21:07,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:21:07,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 06:21:07,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 06:21:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-12 06:21:07,063 INFO L87 Difference]: Start difference. First operand 585 states and 735 transitions. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 06:21:07,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:07,745 INFO L93 Difference]: Finished difference Result 1239 states and 1603 transitions. [2022-07-12 06:21:07,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-12 06:21:07,746 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 109 [2022-07-12 06:21:07,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:07,750 INFO L225 Difference]: With dead ends: 1239 [2022-07-12 06:21:07,750 INFO L226 Difference]: Without dead ends: 715 [2022-07-12 06:21:07,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=921, Unknown=0, NotChecked=0, Total=1190 [2022-07-12 06:21:07,752 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 342 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:07,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1371 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 06:21:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2022-07-12 06:21:07,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 641. [2022-07-12 06:21:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 475 states have (on average 1.2) internal successors, (570), 507 states have internal predecessors, (570), 86 states have call successors, (86), 71 states have call predecessors, (86), 79 states have return successors, (114), 83 states have call predecessors, (114), 86 states have call successors, (114) [2022-07-12 06:21:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 770 transitions. [2022-07-12 06:21:07,789 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 770 transitions. Word has length 109 [2022-07-12 06:21:07,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:07,790 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 770 transitions. [2022-07-12 06:21:07,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 9 states have internal predecessors, (132), 4 states have call successors, (23), 6 states have call predecessors, (23), 6 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-07-12 06:21:07,791 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 770 transitions. [2022-07-12 06:21:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-12 06:21:07,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:07,794 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2022-07-12 06:21:07,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 06:21:08,011 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 [2022-07-12 06:21:08,011 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:08,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1755329041, now seen corresponding path program 1 times [2022-07-12 06:21:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:08,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710622126] [2022-07-12 06:21:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:08,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:21:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 06:21:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 06:21:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 06:21:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 06:21:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 06:21:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-07-12 06:21:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:08,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710622126] [2022-07-12 06:21:08,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710622126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:21:08,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:21:08,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 06:21:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137858984] [2022-07-12 06:21:08,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:21:08,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 06:21:08,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:08,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 06:21:08,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:21:08,146 INFO L87 Difference]: Start difference. First operand 641 states and 770 transitions. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:21:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:08,706 INFO L93 Difference]: Finished difference Result 1786 states and 2182 transitions. [2022-07-12 06:21:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-12 06:21:08,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 191 [2022-07-12 06:21:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:08,712 INFO L225 Difference]: With dead ends: 1786 [2022-07-12 06:21:08,712 INFO L226 Difference]: Without dead ends: 1153 [2022-07-12 06:21:08,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=893, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 06:21:08,715 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 509 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:08,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 754 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 06:21:08,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-07-12 06:21:08,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1138. [2022-07-12 06:21:08,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 849 states have (on average 1.16489988221437) internal successors, (989), 897 states have internal predecessors, (989), 149 states have call successors, (149), 128 states have call predecessors, (149), 139 states have return successors, (195), 146 states have call predecessors, (195), 149 states have call successors, (195) [2022-07-12 06:21:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1333 transitions. [2022-07-12 06:21:08,765 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1333 transitions. Word has length 191 [2022-07-12 06:21:08,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:08,765 INFO L495 AbstractCegarLoop]: Abstraction has 1138 states and 1333 transitions. [2022-07-12 06:21:08,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2022-07-12 06:21:08,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1333 transitions. [2022-07-12 06:21:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-07-12 06:21:08,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:08,769 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:21:08,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 06:21:08,770 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash -813407625, now seen corresponding path program 1 times [2022-07-12 06:21:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:08,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50727151] [2022-07-12 06:21:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:08,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:21:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 06:21:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:21:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 06:21:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-12 06:21:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-12 06:21:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 87 proven. 28 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2022-07-12 06:21:08,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50727151] [2022-07-12 06:21:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50727151] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:21:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039422372] [2022-07-12 06:21:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:08,954 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) [2022-07-12 06:21:08,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 06:21:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:09,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-12 06:21:09,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:21:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 143 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-12 06:21:09,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:21:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 77 proven. 39 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-12 06:21:09,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039422372] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:21:09,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:21:09,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 26 [2022-07-12 06:21:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974594638] [2022-07-12 06:21:09,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:21:09,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-12 06:21:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-12 06:21:09,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2022-07-12 06:21:09,550 INFO L87 Difference]: Start difference. First operand 1138 states and 1333 transitions. Second operand has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2022-07-12 06:21:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:10,629 INFO L93 Difference]: Finished difference Result 2431 states and 2924 transitions. [2022-07-12 06:21:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-12 06:21:10,630 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) Word has length 191 [2022-07-12 06:21:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:10,635 INFO L225 Difference]: With dead ends: 2431 [2022-07-12 06:21:10,635 INFO L226 Difference]: Without dead ends: 1301 [2022-07-12 06:21:10,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 414 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=492, Invalid=1764, Unknown=0, NotChecked=0, Total=2256 [2022-07-12 06:21:10,639 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 831 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:10,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 553 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:21:10,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2022-07-12 06:21:10,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1148. [2022-07-12 06:21:10,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1148 states, 862 states have (on average 1.1392111368909512) internal successors, (982), 903 states have internal predecessors, (982), 151 states have call successors, (151), 130 states have call predecessors, (151), 134 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2022-07-12 06:21:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1148 states to 1148 states and 1321 transitions. [2022-07-12 06:21:10,696 INFO L78 Accepts]: Start accepts. Automaton has 1148 states and 1321 transitions. Word has length 191 [2022-07-12 06:21:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:10,697 INFO L495 AbstractCegarLoop]: Abstraction has 1148 states and 1321 transitions. [2022-07-12 06:21:10,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.384615384615385) internal successors, (218), 22 states have internal predecessors, (218), 10 states have call successors, (39), 9 states have call predecessors, (39), 9 states have return successors, (34), 9 states have call predecessors, (34), 10 states have call successors, (34) [2022-07-12 06:21:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1148 states and 1321 transitions. [2022-07-12 06:21:10,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-07-12 06:21:10,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:10,702 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:21:10,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 06:21:10,919 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,SelfDestructingSolverStorable11 [2022-07-12 06:21:10,920 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:10,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1314092273, now seen corresponding path program 1 times [2022-07-12 06:21:10,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:10,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544427790] [2022-07-12 06:21:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:10,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:10,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:21:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:21:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 06:21:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 06:21:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:21:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-12 06:21:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-12 06:21:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-12 06:21:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 06:21:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,116 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 86 proven. 58 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-12 06:21:11,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:11,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544427790] [2022-07-12 06:21:11,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544427790] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:21:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957798861] [2022-07-12 06:21:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:11,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:11,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:11,118 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) [2022-07-12 06:21:11,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 06:21:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:11,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 06:21:11,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:21:11,360 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 186 proven. 11 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-12 06:21:11,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:21:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 101 proven. 61 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-12 06:21:11,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957798861] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:21:11,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:21:11,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 22 [2022-07-12 06:21:11,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872956458] [2022-07-12 06:21:11,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:21:11,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-12 06:21:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-12 06:21:11,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-07-12 06:21:11,724 INFO L87 Difference]: Start difference. First operand 1148 states and 1321 transitions. Second operand has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2022-07-12 06:21:12,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:12,878 INFO L93 Difference]: Finished difference Result 2250 states and 2629 transitions. [2022-07-12 06:21:12,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-12 06:21:12,879 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) Word has length 207 [2022-07-12 06:21:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:12,885 INFO L225 Difference]: With dead ends: 2250 [2022-07-12 06:21:12,886 INFO L226 Difference]: Without dead ends: 1216 [2022-07-12 06:21:12,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 460 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=483, Invalid=1869, Unknown=0, NotChecked=0, Total=2352 [2022-07-12 06:21:12,890 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 644 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:12,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 578 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 06:21:12,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2022-07-12 06:21:12,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1172. [2022-07-12 06:21:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 878 states have (on average 1.1309794988610478) internal successors, (993), 919 states have internal predecessors, (993), 151 states have call successors, (151), 138 states have call predecessors, (151), 142 states have return successors, (188), 143 states have call predecessors, (188), 151 states have call successors, (188) [2022-07-12 06:21:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1332 transitions. [2022-07-12 06:21:12,965 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1332 transitions. Word has length 207 [2022-07-12 06:21:12,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:12,965 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1332 transitions. [2022-07-12 06:21:12,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.409090909090908) internal successors, (251), 15 states have internal predecessors, (251), 7 states have call successors, (47), 8 states have call predecessors, (47), 11 states have return successors, (41), 10 states have call predecessors, (41), 7 states have call successors, (41) [2022-07-12 06:21:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1332 transitions. [2022-07-12 06:21:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-12 06:21:12,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:12,969 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:21:12,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 06:21:13,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:13,183 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash -916420892, now seen corresponding path program 1 times [2022-07-12 06:21:13,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:13,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017585928] [2022-07-12 06:21:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:13,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:21:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:21:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:21:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:21:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:21:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 06:21:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-12 06:21:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 06:21:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-12 06:21:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 90 proven. 43 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-12 06:21:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:13,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017585928] [2022-07-12 06:21:13,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017585928] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:21:13,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322289790] [2022-07-12 06:21:13,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:13,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:13,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:13,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:21:13,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 06:21:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:13,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-12 06:21:13,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:21:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 131 proven. 26 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-07-12 06:21:13,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:21:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 45 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-12 06:21:14,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322289790] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:21:14,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:21:14,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 13] total 23 [2022-07-12 06:21:14,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653867372] [2022-07-12 06:21:14,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:21:14,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-12 06:21:14,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:14,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-12 06:21:14,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2022-07-12 06:21:14,063 INFO L87 Difference]: Start difference. First operand 1172 states and 1332 transitions. Second operand has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2022-07-12 06:21:15,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:15,367 INFO L93 Difference]: Finished difference Result 2220 states and 2579 transitions. [2022-07-12 06:21:15,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-07-12 06:21:15,368 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) Word has length 208 [2022-07-12 06:21:15,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:15,375 INFO L225 Difference]: With dead ends: 2220 [2022-07-12 06:21:15,375 INFO L226 Difference]: Without dead ends: 1624 [2022-07-12 06:21:15,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=822, Invalid=2484, Unknown=0, NotChecked=0, Total=3306 [2022-07-12 06:21:15,378 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1030 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 552 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 2084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 552 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:15,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 638 Invalid, 2084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [552 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 06:21:15,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2022-07-12 06:21:15,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1484. [2022-07-12 06:21:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1113 states have (on average 1.1311769991015275) internal successors, (1259), 1160 states have internal predecessors, (1259), 192 states have call successors, (192), 176 states have call predecessors, (192), 178 states have return successors, (235), 182 states have call predecessors, (235), 192 states have call successors, (235) [2022-07-12 06:21:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1686 transitions. [2022-07-12 06:21:15,441 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1686 transitions. Word has length 208 [2022-07-12 06:21:15,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:15,441 INFO L495 AbstractCegarLoop]: Abstraction has 1484 states and 1686 transitions. [2022-07-12 06:21:15,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.08695652173913) internal successors, (232), 19 states have internal predecessors, (232), 13 states have call successors, (47), 11 states have call predecessors, (47), 13 states have return successors, (41), 14 states have call predecessors, (41), 13 states have call successors, (41) [2022-07-12 06:21:15,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1686 transitions. [2022-07-12 06:21:15,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-07-12 06:21:15,446 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:21:15,446 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-12 06:21:15,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 06:21:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:15,659 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:21:15,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:21:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1779854262, now seen corresponding path program 1 times [2022-07-12 06:21:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:21:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577381936] [2022-07-12 06:21:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:21:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 06:21:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:21:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 06:21:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 06:21:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 06:21:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 06:21:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 06:21:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:21:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:21:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 06:21:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 06:21:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 06:21:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 06:21:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 06:21:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 06:21:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-12 06:21:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 06:21:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-12 06:21:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 06:21:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 06:21:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 127 proven. 85 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-12 06:21:15,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:21:15,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577381936] [2022-07-12 06:21:15,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577381936] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 06:21:15,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86043467] [2022-07-12 06:21:15,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:21:15,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 06:21:15,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:21:15,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 06:21:15,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 06:21:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:21:16,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 30 conjunts are in the unsatisfiable core [2022-07-12 06:21:16,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 06:21:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 153 proven. 89 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-07-12 06:21:16,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 06:21:16,823 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 98 proven. 136 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-07-12 06:21:16,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86043467] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 06:21:16,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 06:21:16,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 16] total 28 [2022-07-12 06:21:16,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625981533] [2022-07-12 06:21:16,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 06:21:16,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-12 06:21:16,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:21:16,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-12 06:21:16,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2022-07-12 06:21:16,826 INFO L87 Difference]: Start difference. First operand 1484 states and 1686 transitions. Second operand has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) [2022-07-12 06:21:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:21:18,136 INFO L93 Difference]: Finished difference Result 1984 states and 2246 transitions. [2022-07-12 06:21:18,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-12 06:21:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) Word has length 263 [2022-07-12 06:21:18,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:21:18,137 INFO L225 Difference]: With dead ends: 1984 [2022-07-12 06:21:18,137 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:21:18,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 578 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=693, Invalid=2277, Unknown=0, NotChecked=0, Total=2970 [2022-07-12 06:21:18,141 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 761 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 06:21:18,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 641 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 06:21:18,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:21:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:21:18,142 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) [2022-07-12 06:21:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:21:18,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 263 [2022-07-12 06:21:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:21:18,143 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:21:18,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.892857142857142) internal successors, (305), 24 states have internal predecessors, (305), 16 states have call successors, (55), 12 states have call predecessors, (55), 17 states have return successors, (58), 16 states have call predecessors, (58), 16 states have call successors, (58) [2022-07-12 06:21:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:21:18,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:21:18,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:21:18,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 06:21:18,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-12 06:21:18,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:21:25,205 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 551 558) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 1 ~switchedOnBeforeTS~0))) [2022-07-12 06:21:25,205 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 551 558) no Hoare annotation was computed. [2022-07-12 06:21:25,205 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 551 558) no Hoare annotation was computed. [2022-07-12 06:21:25,205 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 458 464) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 458 464) the Hoare annotation is: true [2022-07-12 06:21:25,206 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 943 954) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse3 (not (<= ~waterLevel~0 2)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or (not (< 1 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (not (<= 1 ~pumpRunning~0)) .cse3 (< ~waterLevel~0 2)))) [2022-07-12 06:21:25,206 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 943 954) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 943 954) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L899 garLoopResultBuilder]: For program point L833(line 833) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 812 841) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 812 841) the Hoare annotation is: true [2022-07-12 06:21:25,206 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 830) no Hoare annotation was computed. [2022-07-12 06:21:25,206 INFO L902 garLoopResultBuilder]: At program point L826-1(lines 826 830) the Hoare annotation is: true [2022-07-12 06:21:25,207 INFO L899 garLoopResultBuilder]: For program point L823(line 823) no Hoare annotation was computed. [2022-07-12 06:21:25,207 INFO L902 garLoopResultBuilder]: At program point L822-2(lines 822 836) the Hoare annotation is: true [2022-07-12 06:21:25,207 INFO L902 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: true [2022-07-12 06:21:25,207 INFO L899 garLoopResultBuilder]: For program point L818-1(line 818) no Hoare annotation was computed. [2022-07-12 06:21:25,207 INFO L902 garLoopResultBuilder]: At program point L837(lines 812 841) the Hoare annotation is: true [2022-07-12 06:21:25,207 INFO L895 garLoopResultBuilder]: At program point L960(lines 955 963) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:21:25,207 INFO L899 garLoopResultBuilder]: For program point L923(lines 923 927) no Hoare annotation was computed. [2022-07-12 06:21:25,208 INFO L895 garLoopResultBuilder]: At program point L923-2(lines 919 930) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:21:25,208 INFO L895 garLoopResultBuilder]: At program point L791(line 791) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse4 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse5 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4 .cse5)) (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse2 .cse3 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse4 .cse5 (<= 1 ~switchedOnBeforeTS~0)) .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse6) (or .cse0 .cse1 .cse6 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:21:25,208 INFO L899 garLoopResultBuilder]: For program point L791-1(line 791) no Hoare annotation was computed. [2022-07-12 06:21:25,208 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 431 457) no Hoare annotation was computed. [2022-07-12 06:21:25,208 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 445 451) no Hoare annotation was computed. [2022-07-12 06:21:25,208 INFO L895 garLoopResultBuilder]: At program point L532(line 532) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse2 .cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse4))) [2022-07-12 06:21:25,208 INFO L895 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse4 .cse0 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse3))) [2022-07-12 06:21:25,209 INFO L899 garLoopResultBuilder]: For program point L912(line 912) no Hoare annotation was computed. [2022-07-12 06:21:25,209 INFO L895 garLoopResultBuilder]: At program point L776(line 776) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) .cse6))) [2022-07-12 06:21:25,209 INFO L899 garLoopResultBuilder]: For program point L776-1(line 776) no Hoare annotation was computed. [2022-07-12 06:21:25,209 INFO L895 garLoopResultBuilder]: At program point L537(line 537) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 (and .cse2 (< 1 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse3))) [2022-07-12 06:21:25,209 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 803) no Hoare annotation was computed. [2022-07-12 06:21:25,209 INFO L895 garLoopResultBuilder]: At program point L537-1(lines 518 542) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse1 (<= 1 ~switchedOnBeforeTS~0)) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse3) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse0 .cse1)) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse4 (and .cse0 .cse5) .cse2 (and (<= 1 ~pumpRunning~0) .cse5) .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-07-12 06:21:25,209 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2022-07-12 06:21:25,210 INFO L895 garLoopResultBuilder]: At program point L566(lines 559 569) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:21:25,210 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2022-07-12 06:21:25,210 INFO L899 garLoopResultBuilder]: For program point L438-2(lines 434 456) no Hoare annotation was computed. [2022-07-12 06:21:25,210 INFO L895 garLoopResultBuilder]: At program point L789-1(lines 781 809) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse2 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse1 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse2 (= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0)) .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse4) (or .cse5 (not (= |old(~waterLevel~0)| 1)) .cse3 (and .cse0 .cse1 (<= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|) .cse2 .cse6)) (let ((.cse7 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 2))) (or .cse5 (and (<= 1 ~pumpRunning~0) .cse7 .cse6 .cse8) .cse3 (and .cse0 .cse7 .cse6 .cse8) .cse4 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-07-12 06:21:25,210 INFO L895 garLoopResultBuilder]: At program point L913(lines 908 915) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-12 06:21:25,210 INFO L895 garLoopResultBuilder]: At program point L992(lines 987 995) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|)) (.cse7 (= ~waterLevel~0 1))) (and (let ((.cse1 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) .cse3 .cse4 (and (<= 1 ~pumpRunning~0) .cse1 .cse2) .cse5 (not (<= 2 |old(~waterLevel~0)|)))) (or .cse3 (and .cse0 .cse6 .cse7) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse4 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) .cse5 (and (= ~methaneLevelCritical~0 |timeShift_isMethaneAlarm_#res#1|) .cse0 .cse6 (= |timeShift_isMethaneLevelCritical_#res#1| ~methaneLevelCritical~0) (= |timeShift_processEnvironment_~tmp~5#1| ~methaneLevelCritical~0) .cse7 (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-12 06:21:25,210 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 800) no Hoare annotation was computed. [2022-07-12 06:21:25,210 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 431 457) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (< 1 ~waterLevel~0)) (.cse5 (<= ~waterLevel~0 2)) (.cse6 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (< 1 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) .cse6))) [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 431 457) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L895 garLoopResultBuilder]: At program point L778(lines 771 780) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse1 (= ~waterLevel~0 1))) (or .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (< 1 ~waterLevel~0) (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)) (not (< 1 |old(~waterLevel~0)|)) .cse3))) [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 539) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 912) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 901) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point L894-2(lines 894 901) no Hoare annotation was computed. [2022-07-12 06:21:25,211 INFO L899 garLoopResultBuilder]: For program point L725(lines 725 731) no Hoare annotation was computed. [2022-07-12 06:21:25,212 INFO L899 garLoopResultBuilder]: For program point L725-1(lines 725 731) no Hoare annotation was computed. [2022-07-12 06:21:25,212 INFO L902 garLoopResultBuilder]: At program point L754(lines 695 758) the Hoare annotation is: true [2022-07-12 06:21:25,212 INFO L895 garLoopResultBuilder]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse1 .cse2))) [2022-07-12 06:21:25,212 INFO L902 garLoopResultBuilder]: At program point L903(lines 884 906) the Hoare annotation is: true [2022-07-12 06:21:25,212 INFO L895 garLoopResultBuilder]: At program point L870(lines 866 872) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:21:25,212 INFO L895 garLoopResultBuilder]: At program point L672(lines 668 674) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:21:25,212 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:21:25,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:21:25,212 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:21:25,213 INFO L895 garLoopResultBuilder]: At program point L751(lines 704 752) the Hoare annotation is: false [2022-07-12 06:21:25,213 INFO L899 garLoopResultBuilder]: For program point L706(lines 705 750) no Hoare annotation was computed. [2022-07-12 06:21:25,213 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:21:25,213 INFO L895 garLoopResultBuilder]: At program point L768(lines 763 770) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:21:25,213 INFO L899 garLoopResultBuilder]: For program point L735(lines 735 746) no Hoare annotation was computed. [2022-07-12 06:21:25,213 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2022-07-12 06:21:25,213 INFO L895 garLoopResultBuilder]: At program point L748(lines 705 750) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= 2 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse1 .cse2) (and (<= 1 ~pumpRunning~0) .cse3 .cse1 .cse2))) [2022-07-12 06:21:25,213 INFO L899 garLoopResultBuilder]: For program point L715(lines 715 721) no Hoare annotation was computed. [2022-07-12 06:21:25,214 INFO L899 garLoopResultBuilder]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2022-07-12 06:21:25,214 INFO L899 garLoopResultBuilder]: For program point L707(lines 707 711) no Hoare annotation was computed. [2022-07-12 06:21:25,214 INFO L902 garLoopResultBuilder]: At program point L881(lines 873 883) the Hoare annotation is: true [2022-07-12 06:21:25,214 INFO L895 garLoopResultBuilder]: At program point L687(lines 682 690) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:21:25,214 INFO L895 garLoopResultBuilder]: At program point L679(lines 675 681) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-12 06:21:25,214 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 745) no Hoare annotation was computed. [2022-07-12 06:21:25,214 INFO L895 garLoopResultBuilder]: At program point L741-2(lines 735 746) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse4 .cse0 .cse1 .cse2 .cse3))) [2022-07-12 06:21:25,214 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 466 490) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2022-07-12 06:21:25,214 INFO L895 garLoopResultBuilder]: At program point L630(lines 615 633) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)) .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))))) [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 628) no Hoare annotation was computed. [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point L624-2(lines 624 628) no Hoare annotation was computed. [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point L1000(lines 1000 1006) no Hoare annotation was computed. [2022-07-12 06:21:25,215 INFO L895 garLoopResultBuilder]: At program point L548(lines 543 550) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1) (or (<= 1 ~pumpRunning~0) .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))))) [2022-07-12 06:21:25,215 INFO L895 garLoopResultBuilder]: At program point L480(line 480) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse3)) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2)))) [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 466 490) no Hoare annotation was computed. [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 482) no Hoare annotation was computed. [2022-07-12 06:21:25,215 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 487) no Hoare annotation was computed. [2022-07-12 06:21:25,216 INFO L895 garLoopResultBuilder]: At program point L1005(lines 996 1009) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse2 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-07-12 06:21:25,216 INFO L895 garLoopResultBuilder]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2022-07-12 06:21:25,216 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 466 490) no Hoare annotation was computed. [2022-07-12 06:21:25,216 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 931 942) no Hoare annotation was computed. [2022-07-12 06:21:25,216 INFO L899 garLoopResultBuilder]: For program point L935-1(lines 931 942) no Hoare annotation was computed. [2022-07-12 06:21:25,216 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 931 942) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse1 (not (<= 1 ~pumpRunning~0)) .cse2 .cse3 .cse4))) [2022-07-12 06:21:25,216 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 492 516) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse3 .cse0 .cse1 .cse2))) [2022-07-12 06:21:25,216 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-12 06:21:25,217 INFO L895 garLoopResultBuilder]: At program point L502(line 502) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~7#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-12 06:21:25,217 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 508) no Hoare annotation was computed. [2022-07-12 06:21:25,217 INFO L899 garLoopResultBuilder]: For program point L496(lines 496 513) no Hoare annotation was computed. [2022-07-12 06:21:25,217 INFO L895 garLoopResultBuilder]: At program point L649(lines 634 652) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse2 .cse0 .cse1) (or .cse2 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~7#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-07-12 06:21:25,217 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 647) no Hoare annotation was computed. [2022-07-12 06:21:25,217 INFO L899 garLoopResultBuilder]: For program point L643-2(lines 643 647) no Hoare annotation was computed. [2022-07-12 06:21:25,217 INFO L895 garLoopResultBuilder]: At program point L511(line 511) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse3 .cse2 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse3 .cse0 .cse1 .cse2))) [2022-07-12 06:21:25,217 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 492 516) no Hoare annotation was computed. [2022-07-12 06:21:25,218 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 492 516) no Hoare annotation was computed. [2022-07-12 06:21:25,218 INFO L895 garLoopResultBuilder]: At program point L1015(lines 1010 1018) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse2 .cse1 (not (<= 2 ~waterLevel~0)) (not (<= ~waterLevel~0 2))) (or .cse0 .cse2 .cse1))) [2022-07-12 06:21:25,218 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 570 578) no Hoare annotation was computed. [2022-07-12 06:21:25,218 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 570 578) the Hoare annotation is: true [2022-07-12 06:21:25,218 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 570 578) no Hoare annotation was computed. [2022-07-12 06:21:25,220 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:21:25,222 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:21:25,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:21:25 BoogieIcfgContainer [2022-07-12 06:21:25,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:21:25,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:21:25,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:21:25,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:21:25,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:21:03" (3/4) ... [2022-07-12 06:21:25,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:21:25,257 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-12 06:21:25,257 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:21:25,257 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-07-12 06:21:25,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-07-12 06:21:25,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-07-12 06:21:25,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:21:25,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:21:25,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:21:25,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:21:25,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:21:25,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:21:25,283 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && 1 < waterLevel) && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) [2022-07-12 06:21:25,283 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,284 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && waterLevel == \result) && pumpRunning <= tmp___0) && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(1 == systemActive)) || (((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,284 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((methaneLevelCritical == \result && pumpRunning == 0) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && waterLevel == \result) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2022-07-12 06:21:25,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || (((pumpRunning == \old(pumpRunning) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && methaneLevelCritical == \result) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-07-12 06:21:25,285 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2))) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) [2022-07-12 06:21:25,286 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) [2022-07-12 06:21:25,286 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive))) && (((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || !(1 <= switchedOnBeforeTS)) [2022-07-12 06:21:25,288 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) [2022-07-12 06:21:25,288 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) [2022-07-12 06:21:25,318 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:21:25,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:21:25,319 INFO L158 Benchmark]: Toolchain (without parser) took 22577.90ms. Allocated memory was 96.5MB in the beginning and 289.4MB in the end (delta: 192.9MB). Free memory was 68.8MB in the beginning and 147.9MB in the end (delta: -79.1MB). Peak memory consumption was 113.0MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,319 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:21:25,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.42ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 61.4MB in the end (delta: 7.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,320 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.35ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 58.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,320 INFO L158 Benchmark]: Boogie Preprocessor took 47.09ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,320 INFO L158 Benchmark]: RCFGBuilder took 387.37ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 56.9MB in the beginning and 101.3MB in the end (delta: -44.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,321 INFO L158 Benchmark]: TraceAbstraction took 21622.86ms. Allocated memory was 127.9MB in the beginning and 289.4MB in the end (delta: 161.5MB). Free memory was 100.9MB in the beginning and 154.2MB in the end (delta: -53.2MB). Peak memory consumption was 180.6MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,321 INFO L158 Benchmark]: Witness Printer took 68.15ms. Allocated memory is still 289.4MB. Free memory was 154.2MB in the beginning and 147.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-12 06:21:25,324 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 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.42ms. Allocated memory is still 96.5MB. Free memory was 68.6MB in the beginning and 61.4MB in the end (delta: 7.2MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.35ms. Allocated memory is still 96.5MB. Free memory was 61.2MB in the beginning and 58.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.09ms. Allocated memory is still 96.5MB. Free memory was 58.8MB in the beginning and 57.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.37ms. Allocated memory was 96.5MB in the beginning and 127.9MB in the end (delta: 31.5MB). Free memory was 56.9MB in the beginning and 101.3MB in the end (delta: -44.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21622.86ms. Allocated memory was 127.9MB in the beginning and 289.4MB in the end (delta: 161.5MB). Free memory was 100.9MB in the beginning and 154.2MB in the end (delta: -53.2MB). Peak memory consumption was 180.6MB. Max. memory is 16.1GB. * Witness Printer took 68.15ms. Allocated memory is still 289.4MB. Free memory was 154.2MB in the beginning and 147.9MB 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: 912]: 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, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.5s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5597 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5535 mSDsluCounter, 7806 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5489 mSDsCounter, 2392 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9990 IncrementalHoareTripleChecker+Invalid, 12382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2392 mSolverCounterUnsat, 2317 mSDtfsCounter, 9990 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2651 GetRequests, 2297 SyntacticMatches, 17 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1484occurred in iteration=14, InterpolantAutomatonStates: 266, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 611 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 3929 PreInvPairs, 4093 NumberOfFragments, 2088 HoareAnnotationTreeSize, 3929 FomulaSimplifications, 5131 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 49 FomulaSimplificationsInter, 79977 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2600 NumberOfCodeBlocks, 2600 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3553 ConstructedInterpolants, 0 QuantifiedInterpolants, 8331 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3646 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 3055/3702 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 996]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && \result == 0) && tmp___0 == 0)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && 1 < waterLevel) && waterLevel <= 2) && 1 <= switchedOnBeforeTS)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && waterLevel == 1) || (((pumpRunning == 0 && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0)) || (((1 <= pumpRunning && 2 == waterLevel) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || ((((pumpRunning == \old(pumpRunning) && methaneLevelCritical == \result) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((pumpRunning == \old(pumpRunning) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 987]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && waterLevel == \result) && waterLevel == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 955]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || (((pumpRunning == \old(pumpRunning) && \result == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: ((((((((((methaneLevelCritical == \result && pumpRunning == 0) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive))) && (((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || !(1 <= switchedOnBeforeTS)) - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) && ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2)) - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: ((((((((((((methaneLevelCritical == \result && pumpRunning == 0) && waterLevel == \result) && \result == methaneLevelCritical) && tmp == methaneLevelCritical) && tmp == waterLevel) && waterLevel == 1) && 1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && waterLevel == \result) && pumpRunning <= tmp___0) && tmp == waterLevel) && \old(waterLevel) == waterLevel))) && (((((!(\old(pumpRunning) == 0) || (((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(1 == systemActive)) || (((pumpRunning == 0 && 2 == \result) && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 1010]: Loop Invariant Derived loop invariant: ((((((!(waterLevel == 1) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && \result == 0)) || !(1 <= switchedOnBeforeTS)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || !(waterLevel <= 2))) && ((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 675]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-07-12 06:21:25,387 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