./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:07:09,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:07:09,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:07:09,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:07:09,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:07:09,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:07:09,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:07:09,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:07:09,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:07:09,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:07:09,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:07:09,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:07:09,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:07:09,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:07:09,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:07:09,595 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:07:09,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:07:09,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:07:09,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:07:09,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:07:09,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:07:09,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:07:09,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:07:09,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:07:09,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:07:09,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:07:09,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:07:09,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:07:09,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:07:09,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:07:09,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:07:09,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:07:09,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:07:09,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:07:09,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:07:09,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:07:09,630 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:07:09,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:07:09,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:07:09,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:07:09,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:07:09,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:07:09,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:07:09,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:07:09,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:07:09,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:07:09,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:07:09,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:07:09,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:07:09,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:07:09,666 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:07:09,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:07:09,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:07:09,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:07:09,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:07:09,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:07:09,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:07:09,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:07:09,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:07:09,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:07:09,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:07:09,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:09,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:07:09,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:07:09,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:07:09,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:07:09,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:07:09,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:07:09,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:07:09,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:07:09,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:07:09,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9b08cafcd1ede2e2b3a8fb1be067350eaac45a7dc4fb4db0fb4cb0fdccd74 [2021-12-17 15:07:09,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:07:09,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:07:09,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:07:09,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:07:09,900 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:07:09,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2021-12-17 15:07:09,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9213fe5/679de906406e451b9cfa1ee63b9bc793/FLAGf6d30d676 [2021-12-17 15:07:10,357 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:07:10,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product64.cil.c [2021-12-17 15:07:10,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9213fe5/679de906406e451b9cfa1ee63b9bc793/FLAGf6d30d676 [2021-12-17 15:07:10,722 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9213fe5/679de906406e451b9cfa1ee63b9bc793 [2021-12-17 15:07:10,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:07:10,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:07:10,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:10,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:07:10,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:07:10,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:10" (1/1) ... [2021-12-17 15:07:10,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2b0bdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:10, skipping insertion in model container [2021-12-17 15:07:10,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:07:10" (1/1) ... [2021-12-17 15:07:10,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:07:10,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:07:10,893 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_spec1_product64.cil.c[1605,1618] [2021-12-17 15:07:11,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:11,070 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:07:11,089 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_spec1_product64.cil.c[1605,1618] [2021-12-17 15:07:11,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:07:11,189 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:07:11,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11 WrapperNode [2021-12-17 15:07:11,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:07:11,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:11,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:07:11,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:07:11,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,247 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 276 [2021-12-17 15:07:11,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:07:11,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:07:11,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:07:11,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:07:11,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:07:11,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:07:11,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:07:11,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:07:11,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (1/1) ... [2021-12-17 15:07:11,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:07:11,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:11,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 15:07:11,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 15:07:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:07:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:07:11,369 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:07:11,369 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:07:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:07:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:07:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:07:11,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:07:11,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:07:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:07:11,371 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:07:11,371 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:07:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:07:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-17 15:07:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-17 15:07:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-17 15:07:11,372 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-17 15:07:11,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:07:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:07:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:07:11,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:07:11,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:07:11,463 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:07:11,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:07:11,719 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:07:11,725 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:07:11,725 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:07:11,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:11 BoogieIcfgContainer [2021-12-17 15:07:11,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:07:11,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:07:11,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:07:11,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:07:11,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:07:10" (1/3) ... [2021-12-17 15:07:11,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ef52e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:11, skipping insertion in model container [2021-12-17 15:07:11,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:07:11" (2/3) ... [2021-12-17 15:07:11,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20ef52e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:07:11, skipping insertion in model container [2021-12-17 15:07:11,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:11" (3/3) ... [2021-12-17 15:07:11,734 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product64.cil.c [2021-12-17 15:07:11,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:07:11,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:07:11,773 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:07:11,779 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 15:07:11,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:07:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 93 states have internal predecessors, (112), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-17 15:07:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-17 15:07:11,799 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:11,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:11,801 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:11,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1906157068, now seen corresponding path program 1 times [2021-12-17 15:07:11,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:11,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313332822] [2021-12-17 15:07:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:11,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:07:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:11,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:11,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313332822] [2021-12-17 15:07:11,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313332822] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:11,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:11,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:07:11,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357563810] [2021-12-17 15:07:11,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:11,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:07:11,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:07:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:07:12,009 INFO L87 Difference]: Start difference. First operand has 113 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 93 states have internal predecessors, (112), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,056 INFO L93 Difference]: Finished difference Result 218 states and 295 transitions. [2021-12-17 15:07:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:07:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-12-17 15:07:12,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,070 INFO L225 Difference]: With dead ends: 218 [2021-12-17 15:07:12,071 INFO L226 Difference]: Without dead ends: 104 [2021-12-17 15:07:12,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:07:12,081 INFO L933 BasicCegarLoop]: 144 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, 144 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 [2021-12-17 15:07:12,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:12,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-12-17 15:07:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-12-17 15:07:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 85 states have internal predecessors, (98), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2021-12-17 15:07:12,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-12-17 15:07:12,133 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 23 [2021-12-17 15:07:12,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,133 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-12-17 15:07:12,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,134 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2021-12-17 15:07:12,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-17 15:07:12,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:12,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:12,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:07:12,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:12,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:12,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1844087638, now seen corresponding path program 1 times [2021-12-17 15:07:12,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:12,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576064304] [2021-12-17 15:07:12,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:07:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:12,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:12,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576064304] [2021-12-17 15:07:12,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576064304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:12,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:07:12,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021843410] [2021-12-17 15:07:12,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:12,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:12,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:12,214 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,234 INFO L93 Difference]: Finished difference Result 169 states and 219 transitions. [2021-12-17 15:07:12,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:12,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2021-12-17 15:07:12,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,237 INFO L225 Difference]: With dead ends: 169 [2021-12-17 15:07:12,237 INFO L226 Difference]: Without dead ends: 95 [2021-12-17 15:07:12,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:12,242 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 17 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 222 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 [2021-12-17 15:07:12,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 222 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-12-17 15:07:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-12-17 15:07:12,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.318840579710145) internal successors, (91), 79 states have internal predecessors, (91), 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) [2021-12-17 15:07:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 123 transitions. [2021-12-17 15:07:12,265 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 123 transitions. Word has length 24 [2021-12-17 15:07:12,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,266 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 123 transitions. [2021-12-17 15:07:12,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 123 transitions. [2021-12-17 15:07:12,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-17 15:07:12,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:12,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:12,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:07:12,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1533698931, now seen corresponding path program 1 times [2021-12-17 15:07:12,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:12,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766943618] [2021-12-17 15:07:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:12,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:12,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766943618] [2021-12-17 15:07:12,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766943618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:12,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:07:12,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551830747] [2021-12-17 15:07:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:12,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:12,385 INFO L87 Difference]: Start difference. First operand 95 states and 123 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,433 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2021-12-17 15:07:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-17 15:07:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,438 INFO L225 Difference]: With dead ends: 269 [2021-12-17 15:07:12,438 INFO L226 Difference]: Without dead ends: 181 [2021-12-17 15:07:12,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:07:12,441 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 115 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:12,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 265 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:12,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-12-17 15:07:12,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2021-12-17 15:07:12,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 146 states have internal predecessors, (170), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2021-12-17 15:07:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 234 transitions. [2021-12-17 15:07:12,466 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 234 transitions. Word has length 29 [2021-12-17 15:07:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,466 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 234 transitions. [2021-12-17 15:07:12,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 234 transitions. [2021-12-17 15:07:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-17 15:07:12,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:12,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:12,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:07:12,469 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:12,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:12,469 INFO L85 PathProgramCache]: Analyzing trace with hash 521603362, now seen corresponding path program 1 times [2021-12-17 15:07:12,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:12,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101756368] [2021-12-17 15:07:12,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:07:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:12,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:12,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101756368] [2021-12-17 15:07:12,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101756368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:12,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:12,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217426099] [2021-12-17 15:07:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:12,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:12,564 INFO L87 Difference]: Start difference. First operand 178 states and 234 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:12,701 INFO L93 Difference]: Finished difference Result 520 states and 693 transitions. [2021-12-17 15:07:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:12,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-17 15:07:12,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:12,704 INFO L225 Difference]: With dead ends: 520 [2021-12-17 15:07:12,704 INFO L226 Difference]: Without dead ends: 349 [2021-12-17 15:07:12,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:07:12,707 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 94 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:12,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 614 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:12,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-12-17 15:07:12,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 343. [2021-12-17 15:07:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 242 states have (on average 1.3305785123966942) internal successors, (322), 279 states have internal predecessors, (322), 64 states have call successors, (64), 36 states have call predecessors, (64), 36 states have return successors, (66), 42 states have call predecessors, (66), 64 states have call successors, (66) [2021-12-17 15:07:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 452 transitions. [2021-12-17 15:07:12,784 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 452 transitions. Word has length 32 [2021-12-17 15:07:12,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:12,785 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 452 transitions. [2021-12-17 15:07:12,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:07:12,785 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 452 transitions. [2021-12-17 15:07:12,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-17 15:07:12,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:12,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:12,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:07:12,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:12,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:12,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1862854630, now seen corresponding path program 1 times [2021-12-17 15:07:12,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:12,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125123234] [2021-12-17 15:07:12,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:12,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-17 15:07:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:12,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:12,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125123234] [2021-12-17 15:07:12,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125123234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:12,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:12,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:07:12,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027264684] [2021-12-17 15:07:12,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:12,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:07:12,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:12,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:07:12,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:07:12,916 INFO L87 Difference]: Start difference. First operand 343 states and 452 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:07:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:13,247 INFO L93 Difference]: Finished difference Result 893 states and 1197 transitions. [2021-12-17 15:07:13,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2021-12-17 15:07:13,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:13,255 INFO L225 Difference]: With dead ends: 893 [2021-12-17 15:07:13,255 INFO L226 Difference]: Without dead ends: 557 [2021-12-17 15:07:13,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-17 15:07:13,266 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 146 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:13,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 272 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-12-17 15:07:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 543. [2021-12-17 15:07:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 390 states have (on average 1.2717948717948717) internal successors, (496), 427 states have internal predecessors, (496), 84 states have call successors, (84), 68 states have call predecessors, (84), 68 states have return successors, (112), 74 states have call predecessors, (112), 84 states have call successors, (112) [2021-12-17 15:07:13,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 692 transitions. [2021-12-17 15:07:13,347 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 692 transitions. Word has length 36 [2021-12-17 15:07:13,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:13,348 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 692 transitions. [2021-12-17 15:07:13,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-17 15:07:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 692 transitions. [2021-12-17 15:07:13,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-17 15:07:13,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:13,358 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-12-17 15:07:13,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:07:13,358 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:13,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:13,359 INFO L85 PathProgramCache]: Analyzing trace with hash 980659852, now seen corresponding path program 1 times [2021-12-17 15:07:13,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:13,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710025224] [2021-12-17 15:07:13,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:13,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:07:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:13,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:13,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710025224] [2021-12-17 15:07:13,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710025224] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:13,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:13,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:13,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586801120] [2021-12-17 15:07:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:13,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:13,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:13,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:13,484 INFO L87 Difference]: Start difference. First operand 543 states and 692 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-17 15:07:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:13,954 INFO L93 Difference]: Finished difference Result 1765 states and 2351 transitions. [2021-12-17 15:07:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 15:07:13,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 64 [2021-12-17 15:07:13,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:13,961 INFO L225 Difference]: With dead ends: 1765 [2021-12-17 15:07:13,961 INFO L226 Difference]: Without dead ends: 1229 [2021-12-17 15:07:13,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-12-17 15:07:13,964 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 363 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:13,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 322 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 15:07:13,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2021-12-17 15:07:14,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1047. [2021-12-17 15:07:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 762 states have (on average 1.2283464566929134) internal successors, (936), 813 states have internal predecessors, (936), 146 states have call successors, (146), 118 states have call predecessors, (146), 138 states have return successors, (230), 152 states have call predecessors, (230), 146 states have call successors, (230) [2021-12-17 15:07:14,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1312 transitions. [2021-12-17 15:07:14,026 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1312 transitions. Word has length 64 [2021-12-17 15:07:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:14,027 INFO L470 AbstractCegarLoop]: Abstraction has 1047 states and 1312 transitions. [2021-12-17 15:07:14,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-17 15:07:14,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1312 transitions. [2021-12-17 15:07:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-17 15:07:14,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:14,030 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-12-17 15:07:14,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:07:14,030 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:14,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:14,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1070324146, now seen corresponding path program 1 times [2021-12-17 15:07:14,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:14,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201773739] [2021-12-17 15:07:14,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:14,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:07:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:14,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:14,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201773739] [2021-12-17 15:07:14,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201773739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:14,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:14,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:14,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203048295] [2021-12-17 15:07:14,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:14,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:14,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:14,151 INFO L87 Difference]: Start difference. First operand 1047 states and 1312 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:07:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:14,435 INFO L93 Difference]: Finished difference Result 2153 states and 2794 transitions. [2021-12-17 15:07:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:07:14,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-12-17 15:07:14,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:14,444 INFO L225 Difference]: With dead ends: 2153 [2021-12-17 15:07:14,444 INFO L226 Difference]: Without dead ends: 1113 [2021-12-17 15:07:14,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:07:14,449 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 155 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:14,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 281 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:07:14,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2021-12-17 15:07:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1071. [2021-12-17 15:07:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 786 states have (on average 1.2213740458015268) internal successors, (960), 837 states have internal predecessors, (960), 146 states have call successors, (146), 118 states have call predecessors, (146), 138 states have return successors, (230), 152 states have call predecessors, (230), 146 states have call successors, (230) [2021-12-17 15:07:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1336 transitions. [2021-12-17 15:07:14,522 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1336 transitions. Word has length 64 [2021-12-17 15:07:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:14,522 INFO L470 AbstractCegarLoop]: Abstraction has 1071 states and 1336 transitions. [2021-12-17 15:07:14,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:07:14,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1336 transitions. [2021-12-17 15:07:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-17 15:07:14,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:14,525 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-12-17 15:07:14,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:07:14,526 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:14,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:14,526 INFO L85 PathProgramCache]: Analyzing trace with hash -795564532, now seen corresponding path program 1 times [2021-12-17 15:07:14,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:14,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944837823] [2021-12-17 15:07:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:14,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-17 15:07:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-17 15:07:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-17 15:07:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:07:14,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:14,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944837823] [2021-12-17 15:07:14,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944837823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:14,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:14,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:07:14,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954529694] [2021-12-17 15:07:14,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:14,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:07:14,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:14,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:07:14,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:14,605 INFO L87 Difference]: Start difference. First operand 1071 states and 1336 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:07:15,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:15,017 INFO L93 Difference]: Finished difference Result 1957 states and 2494 transitions. [2021-12-17 15:07:15,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-17 15:07:15,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2021-12-17 15:07:15,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:15,023 INFO L225 Difference]: With dead ends: 1957 [2021-12-17 15:07:15,023 INFO L226 Difference]: Without dead ends: 893 [2021-12-17 15:07:15,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-17 15:07:15,027 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 390 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:15,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 299 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 15:07:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-12-17 15:07:15,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 867. [2021-12-17 15:07:15,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 634 states have (on average 1.2050473186119874) internal successors, (764), 675 states have internal predecessors, (764), 120 states have call successors, (120), 96 states have call predecessors, (120), 112 states have return successors, (170), 122 states have call predecessors, (170), 120 states have call successors, (170) [2021-12-17 15:07:15,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1054 transitions. [2021-12-17 15:07:15,074 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1054 transitions. Word has length 64 [2021-12-17 15:07:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:15,076 INFO L470 AbstractCegarLoop]: Abstraction has 867 states and 1054 transitions. [2021-12-17 15:07:15,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-17 15:07:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1054 transitions. [2021-12-17 15:07:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-17 15:07:15,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:15,079 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:15,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:07:15,079 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:15,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:15,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2077759664, now seen corresponding path program 1 times [2021-12-17 15:07:15,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:15,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092258058] [2021-12-17 15:07:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:15,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:07:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-17 15:07:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-17 15:07:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:07:15,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:15,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092258058] [2021-12-17 15:07:15,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092258058] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:15,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812690159] [2021-12-17 15:07:15,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:15,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:15,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:15,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:07:15,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:07:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:15,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 15:07:15,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:07:15,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:15,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812690159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:15,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:15,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2021-12-17 15:07:15,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176507482] [2021-12-17 15:07:15,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:15,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:07:15,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:15,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:07:15,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-17 15:07:15,673 INFO L87 Difference]: Start difference. First operand 867 states and 1054 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:07:15,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:15,836 INFO L93 Difference]: Finished difference Result 1699 states and 2075 transitions. [2021-12-17 15:07:15,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:15,840 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2021-12-17 15:07:15,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:15,845 INFO L225 Difference]: With dead ends: 1699 [2021-12-17 15:07:15,845 INFO L226 Difference]: Without dead ends: 839 [2021-12-17 15:07:15,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-12-17 15:07:15,850 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 85 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:15,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 1083 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2021-12-17 15:07:15,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 835. [2021-12-17 15:07:15,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 610 states have (on average 1.1934426229508197) internal successors, (728), 649 states have internal predecessors, (728), 118 states have call successors, (118), 96 states have call predecessors, (118), 106 states have return successors, (150), 116 states have call predecessors, (150), 118 states have call successors, (150) [2021-12-17 15:07:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 996 transitions. [2021-12-17 15:07:15,888 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 996 transitions. Word has length 68 [2021-12-17 15:07:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:15,888 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 996 transitions. [2021-12-17 15:07:15,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-17 15:07:15,889 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 996 transitions. [2021-12-17 15:07:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-17 15:07:15,891 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:15,891 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:15,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:16,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:16,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:16,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:16,116 INFO L85 PathProgramCache]: Analyzing trace with hash 659003689, now seen corresponding path program 1 times [2021-12-17 15:07:16,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:16,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152051503] [2021-12-17 15:07:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:16,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:07:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:07:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-17 15:07:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:07:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-17 15:07:16,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:16,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152051503] [2021-12-17 15:07:16,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152051503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:16,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:07:16,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:07:16,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797112156] [2021-12-17 15:07:16,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:16,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:07:16,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:07:16,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:07:16,216 INFO L87 Difference]: Start difference. First operand 835 states and 996 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-17 15:07:16,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:16,574 INFO L93 Difference]: Finished difference Result 1481 states and 1778 transitions. [2021-12-17 15:07:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-17 15:07:16,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 95 [2021-12-17 15:07:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:16,578 INFO L225 Difference]: With dead ends: 1481 [2021-12-17 15:07:16,578 INFO L226 Difference]: Without dead ends: 653 [2021-12-17 15:07:16,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:07:16,580 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 392 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:16,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 290 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 15:07:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2021-12-17 15:07:16,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 575. [2021-12-17 15:07:16,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 422 states have (on average 1.1895734597156398) internal successors, (502), 456 states have internal predecessors, (502), 81 states have call successors, (81), 64 states have call predecessors, (81), 71 states have return successors, (107), 75 states have call predecessors, (107), 81 states have call successors, (107) [2021-12-17 15:07:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 690 transitions. [2021-12-17 15:07:16,611 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 690 transitions. Word has length 95 [2021-12-17 15:07:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:16,611 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 690 transitions. [2021-12-17 15:07:16,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2021-12-17 15:07:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 690 transitions. [2021-12-17 15:07:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:07:16,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:16,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:16,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:07:16,615 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1085933412, now seen corresponding path program 1 times [2021-12-17 15:07:16,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:16,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273419898] [2021-12-17 15:07:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:16,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:07:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:07:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:07:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:07:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:07:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:07:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-17 15:07:16,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:16,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273419898] [2021-12-17 15:07:16,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273419898] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:16,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886437971] [2021-12-17 15:07:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:16,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:16,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:16,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:07:16,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:07:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:16,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 15:07:16,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-17 15:07:17,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:17,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886437971] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:17,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:17,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2021-12-17 15:07:17,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172199399] [2021-12-17 15:07:17,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:17,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:07:17,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:17,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:07:17,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:17,060 INFO L87 Difference]: Start difference. First operand 575 states and 690 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:07:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:17,116 INFO L93 Difference]: Finished difference Result 1208 states and 1509 transitions. [2021-12-17 15:07:17,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:07:17,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2021-12-17 15:07:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:17,120 INFO L225 Difference]: With dead ends: 1208 [2021-12-17 15:07:17,120 INFO L226 Difference]: Without dead ends: 806 [2021-12-17 15:07:17,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:07:17,122 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 38 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:17,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 298 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:07:17,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-12-17 15:07:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 806. [2021-12-17 15:07:17,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 593 states have (on average 1.1854974704890389) internal successors, (703), 635 states have internal predecessors, (703), 113 states have call successors, (113), 94 states have call predecessors, (113), 99 states have return successors, (171), 110 states have call predecessors, (171), 113 states have call successors, (171) [2021-12-17 15:07:17,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 987 transitions. [2021-12-17 15:07:17,158 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 987 transitions. Word has length 123 [2021-12-17 15:07:17,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:17,159 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 987 transitions. [2021-12-17 15:07:17,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:07:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 987 transitions. [2021-12-17 15:07:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-17 15:07:17,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:07:17,162 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:17,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:17,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-17 15:07:17,384 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:07:17,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:07:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 963454430, now seen corresponding path program 1 times [2021-12-17 15:07:17,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:07:17,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862764668] [2021-12-17 15:07:17,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:17,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:07:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:07:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-17 15:07:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:07:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:07:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-17 15:07:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-17 15:07:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-17 15:07:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:07:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-17 15:07:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-17 15:07:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:07:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-17 15:07:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:07:17,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:07:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862764668] [2021-12-17 15:07:17,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862764668] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:07:17,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134655525] [2021-12-17 15:07:17,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:07:17,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:07:17,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:07:17,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 15:07:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:07:17,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-17 15:07:17,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:07:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-17 15:07:17,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:07:17,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134655525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:07:17,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:07:17,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2021-12-17 15:07:17,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691343029] [2021-12-17 15:07:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:07:17,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:07:17,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:07:17,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:07:17,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-12-17 15:07:17,881 INFO L87 Difference]: Start difference. First operand 806 states and 987 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:07:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:07:17,994 INFO L93 Difference]: Finished difference Result 1393 states and 1724 transitions. [2021-12-17 15:07:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:07:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2021-12-17 15:07:17,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:07:17,995 INFO L225 Difference]: With dead ends: 1393 [2021-12-17 15:07:17,995 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:07:17,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2021-12-17 15:07:17,998 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 81 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:07:17,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1067 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:07:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:07:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:07:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:07:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:07:17,999 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2021-12-17 15:07:17,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:07:17,999 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:07:17,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-17 15:07:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:07:17,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:07:18,001 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:07:18,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 15:07:18,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:07:18,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:07:22,446 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 737 744) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:07:22,446 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 737 744) no Hoare annotation was computed. [2021-12-17 15:07:22,446 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 737 744) no Hoare annotation was computed. [2021-12-17 15:07:22,446 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 627 633) no Hoare annotation was computed. [2021-12-17 15:07:22,447 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 627 633) the Hoare annotation is: true [2021-12-17 15:07:22,447 INFO L854 garLoopResultBuilder]: At program point L671(line 671) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,447 INFO L858 garLoopResultBuilder]: For program point L669(lines 669 677) no Hoare annotation was computed. [2021-12-17 15:07:22,447 INFO L858 garLoopResultBuilder]: For program point L665(lines 665 682) no Hoare annotation was computed. [2021-12-17 15:07:22,447 INFO L854 garLoopResultBuilder]: At program point L680(line 680) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2021-12-17 15:07:22,447 INFO L858 garLoopResultBuilder]: For program point L680-1(lines 661 685) no Hoare annotation was computed. [2021-12-17 15:07:22,447 INFO L854 garLoopResultBuilder]: At program point L835(lines 820 838) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,447 INFO L858 garLoopResultBuilder]: For program point L829(lines 829 833) no Hoare annotation was computed. [2021-12-17 15:07:22,447 INFO L858 garLoopResultBuilder]: For program point L829-2(lines 829 833) no Hoare annotation was computed. [2021-12-17 15:07:22,448 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 661 685) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:07:22,448 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 661 685) no Hoare annotation was computed. [2021-12-17 15:07:22,448 INFO L854 garLoopResultBuilder]: At program point L675(line 675) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,448 INFO L854 garLoopResultBuilder]: At program point L962(lines 957 965) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,448 INFO L858 garLoopResultBuilder]: For program point L894-1(lines 890 901) no Hoare annotation was computed. [2021-12-17 15:07:22,448 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 890 901) the Hoare annotation is: (let ((.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~systemActive~0 0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse1 (= ~methaneLevelCritical~0 |old(~methaneLevelCritical~0)|)) (.cse2 (not (<= 1 |old(~methaneLevelCritical~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse4 .cse0 .cse6 .cse3) (or .cse0 .cse5 .cse1 .cse2))) [2021-12-17 15:07:22,448 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 890 901) no Hoare annotation was computed. [2021-12-17 15:07:22,449 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 603 626) no Hoare annotation was computed. [2021-12-17 15:07:22,449 INFO L858 garLoopResultBuilder]: For program point L870(lines 870 874) no Hoare annotation was computed. [2021-12-17 15:07:22,449 INFO L858 garLoopResultBuilder]: For program point L614-1(lines 614 620) no Hoare annotation was computed. [2021-12-17 15:07:22,449 INFO L854 garLoopResultBuilder]: At program point L870-2(lines 866 877) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse3 .cse1 .cse4) (or .cse1 .cse2 .cse4) (or .cse0 .cse5 .cse2) (or .cse0 .cse3 .cse5))) [2021-12-17 15:07:22,449 INFO L854 garLoopResultBuilder]: At program point L701(line 701) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse1 .cse2 .cse4) (or .cse0 .cse3) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,449 INFO L854 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= ~systemActive~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse0 .cse3 (and .cse4 (<= 1 |timeShift_processEnvironment_~tmp~7#1|))) (or .cse3 .cse1 .cse5) (or .cse1 .cse2 .cse5) (or .cse0 .cse4 .cse2))) [2021-12-17 15:07:22,450 INFO L854 garLoopResultBuilder]: At program point L693(line 693) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= ~systemActive~0 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse3 .cse1 .cse4) (or .cse1 .cse2 .cse4) (or .cse0 .cse5 .cse2) (or .cse0 .cse3 .cse5))) [2021-12-17 15:07:22,450 INFO L858 garLoopResultBuilder]: For program point L693-1(line 693) no Hoare annotation was computed. [2021-12-17 15:07:22,450 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 117) no Hoare annotation was computed. [2021-12-17 15:07:22,450 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 120) no Hoare annotation was computed. [2021-12-17 15:07:22,450 INFO L854 garLoopResultBuilder]: At program point L107-1(lines 99 123) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse5 (not (= ~systemActive~0 0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= 1 ~systemActive~0))) (.cse1 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5) (or (and .cse0 (<= 2 ~waterLevel~0)) (and .cse0 .cse2) .cse6 .cse3 .cse4) (or .cse6 .cse7 .cse2) (or (and .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse7 .cse3 .cse5) (or .cse6 .cse7 .cse0 .cse3) (or .cse6 .cse1 .cse4))) [2021-12-17 15:07:22,450 INFO L854 garLoopResultBuilder]: At program point L706(line 706) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~systemActive~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse0 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse5 .cse3) (or .cse4 .cse0 .cse5))) [2021-12-17 15:07:22,450 INFO L854 garLoopResultBuilder]: At program point L706-1(lines 687 711) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (= ~systemActive~0 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 (<= 2 ~waterLevel~0)) (and .cse0 .cse1) .cse2 .cse3 .cse4) (or .cse5 .cse3 .cse6) (or .cse3 .cse4 .cse6) (or .cse2 .cse5 .cse1) (or .cse2 .cse5 .cse0 .cse3))) [2021-12-17 15:07:22,451 INFO L858 garLoopResultBuilder]: For program point L607-1(lines 606 625) no Hoare annotation was computed. [2021-12-17 15:07:22,451 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-17 15:07:22,451 INFO L854 garLoopResultBuilder]: At program point L761(lines 756 764) the Hoare annotation is: (let ((.cse0 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~systemActive~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1) .cse2 .cse3) (or .cse2 .cse4) (or .cse3 (and .cse0 .cse5 .cse1) .cse6 .cse7) (or .cse6 .cse4 .cse7) (or .cse2 .cse3 .cse5 .cse6))) [2021-12-17 15:07:22,451 INFO L858 garLoopResultBuilder]: For program point L695(lines 695 703) no Hoare annotation was computed. [2021-12-17 15:07:22,451 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~systemActive~0 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4) (or .cse3 .cse1 .cse4) (or .cse0 .cse2))) [2021-12-17 15:07:22,451 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 708) no Hoare annotation was computed. [2021-12-17 15:07:22,452 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 603 626) the Hoare annotation is: (let ((.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (and .cse7 (= ~pumpRunning~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~systemActive~0 0))) (.cse4 (and .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse5 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse0 .cse2 .cse6 .cse3) (or .cse4 .cse5 .cse1)))) [2021-12-17 15:07:22,452 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 603 626) no Hoare annotation was computed. [2021-12-17 15:07:22,452 INFO L854 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (= ~pumpRunning~0 0))) (let ((.cse5 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (and .cse4 .cse7)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~systemActive~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 (<= 2 ~waterLevel~0)) .cse0 .cse5 .cse2 .cse6) (or .cse5 .cse1 .cse7) (or .cse5 .cse1 .cse4 .cse2) (or .cse0 .cse2 .cse6 .cse3)))) [2021-12-17 15:07:22,452 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-17 15:07:22,452 INFO L858 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2021-12-17 15:07:22,452 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 493 522) no Hoare annotation was computed. [2021-12-17 15:07:22,452 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 493 522) the Hoare annotation is: true [2021-12-17 15:07:22,453 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 511) no Hoare annotation was computed. [2021-12-17 15:07:22,453 INFO L861 garLoopResultBuilder]: At program point L507-1(lines 507 511) the Hoare annotation is: true [2021-12-17 15:07:22,453 INFO L858 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2021-12-17 15:07:22,453 INFO L861 garLoopResultBuilder]: At program point L503-2(lines 503 517) the Hoare annotation is: true [2021-12-17 15:07:22,453 INFO L861 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: true [2021-12-17 15:07:22,453 INFO L858 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2021-12-17 15:07:22,453 INFO L861 garLoopResultBuilder]: At program point L518(lines 493 522) the Hoare annotation is: true [2021-12-17 15:07:22,454 INFO L858 garLoopResultBuilder]: For program point L514(line 514) no Hoare annotation was computed. [2021-12-17 15:07:22,454 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 902 910) the Hoare annotation is: true [2021-12-17 15:07:22,454 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 902 910) no Hoare annotation was computed. [2021-12-17 15:07:22,454 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 902 910) no Hoare annotation was computed. [2021-12-17 15:07:22,454 INFO L854 garLoopResultBuilder]: At program point L989(line 989) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~systemActive~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse0 .cse5 .cse4 .cse3) (and .cse0 .cse5 .cse1 .cse3))) [2021-12-17 15:07:22,454 INFO L854 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:22,454 INFO L854 garLoopResultBuilder]: At program point L845(line 845) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1))) [2021-12-17 15:07:22,455 INFO L854 garLoopResultBuilder]: At program point L1027(lines 976 1028) the Hoare annotation is: false [2021-12-17 15:07:22,455 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:07:22,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:07:22,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:07:22,455 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1021) no Hoare annotation was computed. [2021-12-17 15:07:22,455 INFO L854 garLoopResultBuilder]: At program point L1015-2(lines 1007 1022) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~systemActive~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse0 .cse4 .cse3 .cse5) (and .cse0 .cse4 .cse1 .cse5))) [2021-12-17 15:07:22,455 INFO L861 garLoopResultBuilder]: At program point L565(lines 558 567) the Hoare annotation is: true [2021-12-17 15:07:22,455 INFO L858 garLoopResultBuilder]: For program point L978(lines 977 1026) no Hoare annotation was computed. [2021-12-17 15:07:22,456 INFO L858 garLoopResultBuilder]: For program point L1007(lines 1007 1022) no Hoare annotation was computed. [2021-12-17 15:07:22,456 INFO L854 garLoopResultBuilder]: At program point L999(line 999) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~systemActive~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse0 .cse5 .cse4 .cse3) (and .cse0 .cse5 .cse1 .cse3))) [2021-12-17 15:07:22,456 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 585) no Hoare annotation was computed. [2021-12-17 15:07:22,456 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:07:22,456 INFO L854 garLoopResultBuilder]: At program point L1024(lines 977 1026) the Hoare annotation is: (let ((.cse2 (= ~systemActive~0 1)) (.cse4 (= ~methaneLevelCritical~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~systemActive~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2) (and .cse0 .cse5 .cse4 .cse3) (and .cse0 .cse5 .cse1 .cse3))) [2021-12-17 15:07:22,456 INFO L858 garLoopResultBuilder]: For program point L578-2(lines 578 585) no Hoare annotation was computed. [2021-12-17 15:07:22,456 INFO L858 garLoopResultBuilder]: For program point L987(lines 987 993) no Hoare annotation was computed. [2021-12-17 15:07:22,457 INFO L854 garLoopResultBuilder]: At program point L859(lines 854 861) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 1))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1))) [2021-12-17 15:07:22,457 INFO L858 garLoopResultBuilder]: For program point L987-1(lines 987 993) no Hoare annotation was computed. [2021-12-17 15:07:22,457 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 983) no Hoare annotation was computed. [2021-12-17 15:07:22,457 INFO L854 garLoopResultBuilder]: At program point L851(lines 839 853) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2) (and .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2))) [2021-12-17 15:07:22,457 INFO L858 garLoopResultBuilder]: For program point L843(lines 843 849) no Hoare annotation was computed. [2021-12-17 15:07:22,457 INFO L861 garLoopResultBuilder]: At program point L587(lines 568 590) the Hoare annotation is: true [2021-12-17 15:07:22,457 INFO L854 garLoopResultBuilder]: At program point L554(lines 550 556) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:22,457 INFO L858 garLoopResultBuilder]: For program point L843-1(lines 843 849) no Hoare annotation was computed. [2021-12-17 15:07:22,458 INFO L854 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:22,458 INFO L854 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:07:22,458 INFO L861 garLoopResultBuilder]: At program point L1030(lines 967 1034) the Hoare annotation is: true [2021-12-17 15:07:22,458 INFO L858 garLoopResultBuilder]: For program point L997(lines 997 1003) no Hoare annotation was computed. [2021-12-17 15:07:22,458 INFO L858 garLoopResultBuilder]: For program point L997-1(lines 997 1003) no Hoare annotation was computed. [2021-12-17 15:07:22,458 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 635 659) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:07:22,458 INFO L854 garLoopResultBuilder]: At program point L952(lines 943 956) the Hoare annotation is: (let ((.cse12 (= ~methaneLevelCritical~0 0)) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse11 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (let ((.cse1 (not .cse11)) (.cse6 (and .cse12 .cse7 .cse10 .cse2 .cse11)) (.cse8 (not .cse12)) (.cse0 (and .cse10 .cse2 .cse11)) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not .cse10))) (and (or .cse0 (and .cse1 .cse2) .cse3 .cse4 .cse5) (or .cse6 .cse3 (and .cse1 .cse7 .cse2) .cse8) (or .cse6 .cse3 .cse8 .cse9) (or .cse0 .cse3 .cse4 .cse5 .cse9)))) [2021-12-17 15:07:22,459 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 733) no Hoare annotation was computed. [2021-12-17 15:07:22,459 INFO L854 garLoopResultBuilder]: At program point L725(line 725) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (<= 2 ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and .cse1 .cse2 (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse2) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))))) [2021-12-17 15:07:22,459 INFO L854 garLoopResultBuilder]: At program point L727-2(lines 720 736) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~8#1|) .cse1) (not (= |old(~pumpRunning~0)| 0))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:07:22,459 INFO L858 garLoopResultBuilder]: For program point L725-1(line 725) no Hoare annotation was computed. [2021-12-17 15:07:22,459 INFO L854 garLoopResultBuilder]: At program point L816(lines 801 819) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse8 (not (= 1 ~systemActive~0))) (.cse4 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (.cse5 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (.cse6 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse7 (not (= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1|))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse0 .cse7 .cse1 .cse3) .cse8 (not .cse0))) (or (and .cse1 .cse2) .cse8 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0)) (and .cse4 .cse5 .cse6 .cse7 .cse1)))) [2021-12-17 15:07:22,459 INFO L854 garLoopResultBuilder]: At program point L717(lines 712 719) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= |old(~pumpRunning~0)| 0))) (or .cse0 (<= 2 ~waterLevel~0) (not (= ~methaneLevelCritical~0 0))))) [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point L810(lines 810 814) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L854 garLoopResultBuilder]: At program point L649(line 649) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (not (= 0 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~9#1|)))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 (and .cse6 .cse7)) (or .cse0 .cse1 .cse2 .cse4 .cse5) (or (and .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7) .cse1 .cse3))) [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point L810-2(lines 810 814) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point L643(lines 643 651) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point L639(lines 639 656) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 635 659) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2021-12-17 15:07:22,460 INFO L854 garLoopResultBuilder]: At program point L654(line 654) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2))) [2021-12-17 15:07:22,461 INFO L858 garLoopResultBuilder]: For program point L654-1(lines 635 659) no Hoare annotation was computed. [2021-12-17 15:07:22,461 INFO L858 garLoopResultBuilder]: For program point L882-1(lines 878 889) no Hoare annotation was computed. [2021-12-17 15:07:22,461 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 878 889) no Hoare annotation was computed. [2021-12-17 15:07:22,461 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 878 889) the Hoare annotation is: (let ((.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~systemActive~0 0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5) (or .cse0 .cse2 .cse5 .cse3) (or .cse0 .cse4 .cse1 .cse2))) [2021-12-17 15:07:22,461 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 745 755) the Hoare annotation is: true [2021-12-17 15:07:22,461 INFO L861 garLoopResultBuilder]: At program point L750(line 750) the Hoare annotation is: true [2021-12-17 15:07:22,461 INFO L858 garLoopResultBuilder]: For program point L750-1(line 750) no Hoare annotation was computed. [2021-12-17 15:07:22,461 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 745 755) no Hoare annotation was computed. [2021-12-17 15:07:22,462 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 745 755) no Hoare annotation was computed. [2021-12-17 15:07:22,464 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:07:22,465 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:07:22,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:07:22 BoogieIcfgContainer [2021-12-17 15:07:22,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:07:22,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:07:22,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:07:22,488 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:07:22,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:07:11" (3/4) ... [2021-12-17 15:07:22,491 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:07:22,496 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:07:22,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-17 15:07:22,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:07:22,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:07:22,497 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-17 15:07:22,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-12-17 15:07:22,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:07:22,505 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:07:22,505 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:07:22,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:07:22,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:22,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:07:22,524 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == \old(pumpRunning)) [2021-12-17 15:07:22,525 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:07:22,526 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((waterLevel == \old(waterLevel) && tmp == 0) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == 0)) && ((((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:22,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0))) && (((!(1 <= methaneLevelCritical) || ((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:07:22,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical <= tmp) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:22,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:22,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:22,527 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || (!(\result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) && (((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || ((!(\result == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= waterLevel))) && ((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(2 <= waterLevel)) [2021-12-17 15:07:22,528 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (!(1 == systemActive) || !(1 <= methaneLevelCritical)) [2021-12-17 15:07:22,528 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) [2021-12-17 15:07:22,528 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) || ((((((!(\result == 0) && \result == 0) && tmp___0 == 0) && methaneLevelCritical == 0) && !(0 == tmp)) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((((!(\result == 0) && \result == 0) && tmp___0 == 0) && !(0 == tmp)) && pumpRunning == \old(pumpRunning))) [2021-12-17 15:07:22,549 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:07:22,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:07:22,550 INFO L158 Benchmark]: Toolchain (without parser) took 11813.65ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 82.5MB in the beginning and 81.7MB in the end (delta: 868.5kB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,551 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:07:22,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.33ms. Allocated memory is still 102.8MB. Free memory was 82.3MB in the beginning and 72.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.96ms. Allocated memory is still 102.8MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,551 INFO L158 Benchmark]: Boogie Preprocessor took 41.15ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,553 INFO L158 Benchmark]: RCFGBuilder took 433.51ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 50.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,554 INFO L158 Benchmark]: TraceAbstraction took 10758.80ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 50.1MB in the beginning and 89.0MB in the end (delta: -38.9MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,554 INFO L158 Benchmark]: Witness Printer took 61.98ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 81.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-17 15:07:22,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 75.5MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.33ms. Allocated memory is still 102.8MB. Free memory was 82.3MB in the beginning and 72.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.96ms. Allocated memory is still 102.8MB. Free memory was 72.5MB in the beginning and 69.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.15ms. Allocated memory is still 102.8MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.51ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 50.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10758.80ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 50.1MB in the beginning and 89.0MB in the end (delta: -38.9MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * Witness Printer took 61.98ms. Allocated memory is still 148.9MB. Free memory was 89.0MB in the beginning and 81.7MB in the end (delta: 7.3MB). 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: 54]: 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 11 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1920 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1876 mSDsluCounter, 5157 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3403 mSDsCounter, 662 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2092 IncrementalHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 662 mSolverCounterUnsat, 1754 mSDtfsCounter, 2092 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 573 GetRequests, 457 SyntacticMatches, 4 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1071occurred in iteration=7, InterpolantAutomatonStates: 93, 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, 12 MinimizatonAttempts, 355 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 3369 PreInvPairs, 3647 NumberOfFragments, 2009 HoareAnnotationTreeSize, 3369 FomulaSimplifications, 3307 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 52 FomulaSimplificationsInter, 18074 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1059 NumberOfCodeBlocks, 1059 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1044 ConstructedInterpolants, 0 QuantifiedInterpolants, 1801 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1447 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 224/236 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: 80]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical <= tmp) && 2 <= waterLevel)) || !(\old(pumpRunning) == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: ((((((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == 0)) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (((((((((waterLevel == \old(waterLevel) && tmp == 0) && pumpRunning == 0) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(systemActive == 0)) && (((((waterLevel == \old(waterLevel) && 2 <= waterLevel) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == 0)) && ((((waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 943]: Loop Invariant Derived loop invariant: ((((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || (!(\result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) && (((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || ((!(\result == 0) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(2 <= waterLevel))) && ((((((2 <= waterLevel && pumpRunning == 0) && \result == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || !(2 <= waterLevel)) - InvariantResult [Line: 976]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 957]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || pumpRunning == \old(pumpRunning)) - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 712]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) && ((!(1 == systemActive) || 2 <= waterLevel) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && systemActive == 0) && methaneLevelCritical == 0) && pumpRunning == 0) || (((splverifierCounter == 0 && systemActive == 0) && 1 <= methaneLevelCritical) && pumpRunning == 0) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(methaneLevelCritical == 0)) && ((!(1 <= methaneLevelCritical) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (!(1 == systemActive) || !(1 <= methaneLevelCritical)) - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0))) && ((!(1 == systemActive) || pumpRunning == \old(pumpRunning)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && 1 <= methaneLevelCritical) && systemActive == 1) && pumpRunning == 0) || ((splverifierCounter == 0 && methaneLevelCritical == 0) && systemActive == 1)) || (((splverifierCounter == 0 && systemActive == 0) && methaneLevelCritical == 0) && pumpRunning == 0)) || (((splverifierCounter == 0 && systemActive == 0) && 1 <= methaneLevelCritical) && pumpRunning == 0) - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && 1 <= methaneLevelCritical) && systemActive == 1) || ((splverifierCounter == 0 && methaneLevelCritical == 0) && systemActive == 1) - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: ((((((\result == 0 && pumpRunning == 0) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) && (!(1 == systemActive) || !(methaneLevelCritical == 0))) && (((!(1 <= methaneLevelCritical) || ((\result == 0 && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(systemActive == 0))) && (((!(1 == systemActive) || !(1 <= methaneLevelCritical)) || waterLevel == \old(waterLevel)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && pumpRunning == \old(pumpRunning)) && 2 <= waterLevel) && pumpRunning == 0) || ((((((!(\result == 0) && \result == 0) && tmp___0 == 0) && methaneLevelCritical == 0) && !(0 == tmp)) && pumpRunning == \old(pumpRunning)) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && (((((pumpRunning == \old(pumpRunning) && 2 <= waterLevel) || !(1 == systemActive)) || !(1 <= methaneLevelCritical)) || !(\old(pumpRunning) == 0)) || ((((!(\result == 0) && \result == 0) && tmp___0 == 0) && !(0 == tmp)) && pumpRunning == \old(pumpRunning))) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:07:22,600 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