./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product63.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_spec5_product63.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 b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:01:41,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:01:41,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:01:41,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:01:41,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:01:41,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:01:41,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:01:41,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:01:41,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:01:41,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:01:41,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:01:41,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:01:41,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:01:41,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:01:41,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:01:41,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:01:41,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:01:41,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:01:41,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:01:41,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:01:41,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:01:41,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:01:41,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:01:41,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:01:41,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:01:41,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:01:41,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:01:41,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:01:41,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:01:41,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:01:41,607 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:01:41,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:01:41,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:01:41,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:01:41,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:01:41,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:01:41,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:01:41,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:01:41,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:01:41,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:01:41,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:01:41,614 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:01:41,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:01:41,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:01:41,639 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:01:41,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:01:41,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:01:41,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:01:41,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:01:41,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:01:41,640 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:01:41,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:01:41,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:01:41,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:01:41,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:01:41,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:01:41,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:01:41,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:01:41,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:01:41,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:01:41,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:01:41,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:01:41,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:01:41,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:01:41,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:01:41,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:01:41,645 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:01:41,645 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:01:41,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:01:41,646 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:01:41,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a [2021-12-16 01:01:41,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:01:41,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:01:41,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:01:41,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:01:41,851 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:01:41,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2021-12-16 01:01:41,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e046a25/2c67131a387c49889709107ad7a1a071/FLAG2a4bfce9b [2021-12-16 01:01:42,503 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:01:42,504 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2021-12-16 01:01:42,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e046a25/2c67131a387c49889709107ad7a1a071/FLAG2a4bfce9b [2021-12-16 01:01:42,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7e046a25/2c67131a387c49889709107ad7a1a071 [2021-12-16 01:01:42,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:01:42,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:01:42,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:01:42,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:01:42,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:01:42,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:01:42" (1/1) ... [2021-12-16 01:01:42,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3780bf21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:42, skipping insertion in model container [2021-12-16 01:01:42,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:01:42" (1/1) ... [2021-12-16 01:01:42,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:01:42,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:01:43,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2021-12-16 01:01:43,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:01:43,204 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:01:43,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2021-12-16 01:01:43,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:01:43,308 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:01:43,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43 WrapperNode [2021-12-16 01:01:43,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:01:43,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:01:43,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:01:43,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:01:43,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,367 INFO L137 Inliner]: procedures = 60, calls = 165, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 299 [2021-12-16 01:01:43,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:01:43,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:01:43,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:01:43,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:01:43,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:01:43,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:01:43,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:01:43,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:01:43,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (1/1) ... [2021-12-16 01:01:43,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:01:43,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:01:43,458 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) [2021-12-16 01:01:43,488 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 [2021-12-16 01:01:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:01:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-16 01:01:43,515 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-16 01:01:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-16 01:01:43,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-16 01:01:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-16 01:01:43,515 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-16 01:01:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:01:43,516 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:01:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-16 01:01:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-16 01:01:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:01:43,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:01:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-12-16 01:01:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-12-16 01:01:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-16 01:01:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-16 01:01:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-16 01:01:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-16 01:01:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:01:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-16 01:01:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-16 01:01:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:01:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:01:43,589 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:01:43,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:01:43,890 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:01:43,895 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:01:43,903 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-16 01:01:43,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:01:43 BoogieIcfgContainer [2021-12-16 01:01:43,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:01:43,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:01:43,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:01:43,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:01:43,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:01:42" (1/3) ... [2021-12-16 01:01:43,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bda7d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:01:43, skipping insertion in model container [2021-12-16 01:01:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:01:43" (2/3) ... [2021-12-16 01:01:43,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bda7d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:01:43, skipping insertion in model container [2021-12-16 01:01:43,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:01:43" (3/3) ... [2021-12-16 01:01:43,910 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2021-12-16 01:01:43,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:01:43,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 01:01:43,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:01:43,975 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 [2021-12-16 01:01:43,975 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 01:01:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 97 states have internal predecessors, (117), 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) [2021-12-16 01:01:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-16 01:01:43,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:43,996 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] [2021-12-16 01:01:43,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:44,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:44,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2028778160, now seen corresponding path program 1 times [2021-12-16 01:01:44,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:44,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429736076] [2021-12-16 01:01:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:44,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-16 01:01:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 01:01:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:44,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:44,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429736076] [2021-12-16 01:01:44,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429736076] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:44,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:44,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 01:01:44,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288739923] [2021-12-16 01:01:44,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:44,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-16 01:01:44,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-16 01:01:44,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:01:44,259 INFO L87 Difference]: Start difference. First operand has 117 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 97 states have internal predecessors, (117), 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 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:01:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:44,330 INFO L93 Difference]: Finished difference Result 225 states and 304 transitions. [2021-12-16 01:01:44,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-16 01:01:44,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-12-16 01:01:44,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:44,341 INFO L225 Difference]: With dead ends: 225 [2021-12-16 01:01:44,341 INFO L226 Difference]: Without dead ends: 108 [2021-12-16 01:01:44,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-16 01:01:44,352 INFO L933 BasicCegarLoop]: 149 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, 149 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 [2021-12-16 01:01:44,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:01:44,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-16 01:01:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-12-16 01:01:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 89 states have internal predecessors, (103), 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) [2021-12-16 01:01:44,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 140 transitions. [2021-12-16 01:01:44,444 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 140 transitions. Word has length 32 [2021-12-16 01:01:44,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:44,445 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 140 transitions. [2021-12-16 01:01:44,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:01:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2021-12-16 01:01:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-16 01:01:44,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:44,455 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] [2021-12-16 01:01:44,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:01:44,456 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash -257998862, now seen corresponding path program 1 times [2021-12-16 01:01:44,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:44,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272677964] [2021-12-16 01:01:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:44,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:01:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-16 01:01:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:44,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:44,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272677964] [2021-12-16 01:01:44,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272677964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:44,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:44,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 01:01:44,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443586619] [2021-12-16 01:01:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:44,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 01:01:44,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:44,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 01:01:44,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:01:44,651 INFO L87 Difference]: Start difference. First operand 108 states and 140 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 01:01:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:44,719 INFO L93 Difference]: Finished difference Result 307 states and 406 transitions. [2021-12-16 01:01:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 01:01:44,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2021-12-16 01:01:44,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:44,725 INFO L225 Difference]: With dead ends: 307 [2021-12-16 01:01:44,736 INFO L226 Difference]: Without dead ends: 207 [2021-12-16 01:01:44,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 01:01:44,740 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 115 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:44,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 299 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 01:01:44,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-12-16 01:01:44,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2021-12-16 01:01:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.3197278911564625) internal successors, (194), 166 states have internal predecessors, (194), 38 states have call successors, (38), 20 states have call predecessors, (38), 18 states have return successors, (36), 25 states have call predecessors, (36), 36 states have call successors, (36) [2021-12-16 01:01:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 268 transitions. [2021-12-16 01:01:44,766 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 268 transitions. Word has length 37 [2021-12-16 01:01:44,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:44,767 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 268 transitions. [2021-12-16 01:01:44,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 01:01:44,777 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 268 transitions. [2021-12-16 01:01:44,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-16 01:01:44,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:44,782 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] [2021-12-16 01:01:44,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:01:44,783 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:44,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:44,783 INFO L85 PathProgramCache]: Analyzing trace with hash 702056680, now seen corresponding path program 1 times [2021-12-16 01:01:44,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:44,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629502895] [2021-12-16 01:01:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:44,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 01:01:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-16 01:01:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-16 01:01:44,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:44,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629502895] [2021-12-16 01:01:44,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629502895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:44,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:44,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:01:44,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515496127] [2021-12-16 01:01:44,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:44,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:01:44,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:01:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:01:44,984 INFO L87 Difference]: Start difference. First operand 204 states and 268 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:01:45,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:45,252 INFO L93 Difference]: Finished difference Result 538 states and 751 transitions. [2021-12-16 01:01:45,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 01:01:45,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-12-16 01:01:45,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:45,262 INFO L225 Difference]: With dead ends: 538 [2021-12-16 01:01:45,262 INFO L226 Difference]: Without dead ends: 342 [2021-12-16 01:01:45,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:01:45,270 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 79 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:45,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 681 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:01:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-16 01:01:45,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 329. [2021-12-16 01:01:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 259 states have internal predecessors, (304), 54 states have call successors, (54), 38 states have call predecessors, (54), 34 states have return successors, (70), 45 states have call predecessors, (70), 50 states have call successors, (70) [2021-12-16 01:01:45,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 428 transitions. [2021-12-16 01:01:45,354 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 428 transitions. Word has length 41 [2021-12-16 01:01:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:45,354 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 428 transitions. [2021-12-16 01:01:45,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 01:01:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 428 transitions. [2021-12-16 01:01:45,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-16 01:01:45,370 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:45,370 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] [2021-12-16 01:01:45,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:01:45,371 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:45,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:45,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1444776659, now seen corresponding path program 1 times [2021-12-16 01:01:45,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:45,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201052843] [2021-12-16 01:01:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:45,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:01:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 01:01:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 01:01:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:45,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:45,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201052843] [2021-12-16 01:01:45,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201052843] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:45,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:45,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:01:45,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446624744] [2021-12-16 01:01:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:45,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:01:45,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:01:45,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:01:45,539 INFO L87 Difference]: Start difference. First operand 329 states and 428 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 01:01:45,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:45,740 INFO L93 Difference]: Finished difference Result 746 states and 1031 transitions. [2021-12-16 01:01:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 01:01:45,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2021-12-16 01:01:45,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:45,743 INFO L225 Difference]: With dead ends: 746 [2021-12-16 01:01:45,743 INFO L226 Difference]: Without dead ends: 425 [2021-12-16 01:01:45,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:01:45,745 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 86 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:45,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 523 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:01:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-12-16 01:01:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 389. [2021-12-16 01:01:45,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 286 states have (on average 1.2517482517482517) internal successors, (358), 305 states have internal predecessors, (358), 58 states have call successors, (58), 38 states have call predecessors, (58), 44 states have return successors, (92), 57 states have call predecessors, (92), 54 states have call successors, (92) [2021-12-16 01:01:45,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 508 transitions. [2021-12-16 01:01:45,777 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 508 transitions. Word has length 64 [2021-12-16 01:01:45,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:45,778 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 508 transitions. [2021-12-16 01:01:45,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 01:01:45,778 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 508 transitions. [2021-12-16 01:01:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-16 01:01:45,779 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:45,779 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] [2021-12-16 01:01:45,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:01:45,779 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash 968830382, now seen corresponding path program 1 times [2021-12-16 01:01:45,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:45,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478929075] [2021-12-16 01:01:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:45,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 01:01:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-16 01:01:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-16 01:01:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:45,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:45,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478929075] [2021-12-16 01:01:45,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478929075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:45,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:45,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:01:45,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18338273] [2021-12-16 01:01:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:45,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 01:01:45,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:45,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 01:01:45,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 01:01:45,817 INFO L87 Difference]: Start difference. First operand 389 states and 508 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 01:01:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:45,893 INFO L93 Difference]: Finished difference Result 657 states and 826 transitions. [2021-12-16 01:01:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 01:01:45,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2021-12-16 01:01:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:45,895 INFO L225 Difference]: With dead ends: 657 [2021-12-16 01:01:45,895 INFO L226 Difference]: Without dead ends: 355 [2021-12-16 01:01:45,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 01:01:45,896 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 83 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:45,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 238 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 01:01:45,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-12-16 01:01:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 353. [2021-12-16 01:01:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 262 states have (on average 1.2595419847328244) internal successors, (330), 281 states have internal predecessors, (330), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2021-12-16 01:01:45,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 444 transitions. [2021-12-16 01:01:45,909 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 444 transitions. Word has length 60 [2021-12-16 01:01:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:45,909 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 444 transitions. [2021-12-16 01:01:45,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 01:01:45,909 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 444 transitions. [2021-12-16 01:01:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-16 01:01:45,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:45,910 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] [2021-12-16 01:01:45,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:01:45,910 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1463987243, now seen corresponding path program 1 times [2021-12-16 01:01:45,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:45,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835286879] [2021-12-16 01:01:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:45,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:01:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 01:01:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 01:01:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:45,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:45,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835286879] [2021-12-16 01:01:45,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835286879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:45,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:45,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 01:01:45,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964887716] [2021-12-16 01:01:45,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:45,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 01:01:45,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:45,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 01:01:45,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 01:01:45,968 INFO L87 Difference]: Start difference. First operand 353 states and 444 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-16 01:01:46,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:46,205 INFO L93 Difference]: Finished difference Result 722 states and 931 transitions. [2021-12-16 01:01:46,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 01:01:46,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 64 [2021-12-16 01:01:46,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:46,207 INFO L225 Difference]: With dead ends: 722 [2021-12-16 01:01:46,207 INFO L226 Difference]: Without dead ends: 377 [2021-12-16 01:01:46,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-16 01:01:46,209 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 259 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:46,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 492 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:01:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-12-16 01:01:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 357. [2021-12-16 01:01:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 266 states have (on average 1.255639097744361) internal successors, (334), 285 states have internal predecessors, (334), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2021-12-16 01:01:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 448 transitions. [2021-12-16 01:01:46,224 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 448 transitions. Word has length 64 [2021-12-16 01:01:46,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:46,224 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 448 transitions. [2021-12-16 01:01:46,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-16 01:01:46,224 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 448 transitions. [2021-12-16 01:01:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-16 01:01:46,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:46,225 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] [2021-12-16 01:01:46,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:01:46,226 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:46,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:46,226 INFO L85 PathProgramCache]: Analyzing trace with hash -762387369, now seen corresponding path program 1 times [2021-12-16 01:01:46,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:46,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392314660] [2021-12-16 01:01:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:46,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 01:01:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 01:01:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 01:01:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:46,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:46,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392314660] [2021-12-16 01:01:46,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392314660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:46,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:46,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 01:01:46,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398515016] [2021-12-16 01:01:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:46,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:01:46,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:01:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:01:46,290 INFO L87 Difference]: Start difference. First operand 357 states and 448 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-16 01:01:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:46,500 INFO L93 Difference]: Finished difference Result 998 states and 1301 transitions. [2021-12-16 01:01:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 01:01:46,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 64 [2021-12-16 01:01:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:46,504 INFO L225 Difference]: With dead ends: 998 [2021-12-16 01:01:46,504 INFO L226 Difference]: Without dead ends: 649 [2021-12-16 01:01:46,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:01:46,505 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 256 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:46,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 388 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:01:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-12-16 01:01:46,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 642. [2021-12-16 01:01:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 477 states have (on average 1.2243186582809225) internal successors, (584), 505 states have internal predecessors, (584), 87 states have call successors, (87), 71 states have call predecessors, (87), 77 states have return successors, (139), 88 states have call predecessors, (139), 87 states have call successors, (139) [2021-12-16 01:01:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 810 transitions. [2021-12-16 01:01:46,527 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 810 transitions. Word has length 64 [2021-12-16 01:01:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:46,527 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 810 transitions. [2021-12-16 01:01:46,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-16 01:01:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 810 transitions. [2021-12-16 01:01:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-16 01:01:46,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:46,529 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] [2021-12-16 01:01:46,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:01:46,529 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash -480731343, now seen corresponding path program 1 times [2021-12-16 01:01:46,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:46,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147091651] [2021-12-16 01:01:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:46,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 01:01:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 01:01:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 01:01:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-16 01:01:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:46,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 01:01:46,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:46,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147091651] [2021-12-16 01:01:46,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147091651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:46,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:46,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 01:01:46,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355758113] [2021-12-16 01:01:46,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:46,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 01:01:46,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:46,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 01:01:46,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:01:46,633 INFO L87 Difference]: Start difference. First operand 642 states and 810 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-16 01:01:47,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:47,333 INFO L93 Difference]: Finished difference Result 1757 states and 2334 transitions. [2021-12-16 01:01:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-16 01:01:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 68 [2021-12-16 01:01:47,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:47,337 INFO L225 Difference]: With dead ends: 1757 [2021-12-16 01:01:47,337 INFO L226 Difference]: Without dead ends: 1236 [2021-12-16 01:01:47,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:01:47,339 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 672 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:47,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 658 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:01:47,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2021-12-16 01:01:47,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1082. [2021-12-16 01:01:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 802 states have (on average 1.2244389027431422) internal successors, (982), 856 states have internal predecessors, (982), 148 states have call successors, (148), 112 states have call predecessors, (148), 131 states have return successors, (238), 147 states have call predecessors, (238), 148 states have call successors, (238) [2021-12-16 01:01:47,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1368 transitions. [2021-12-16 01:01:47,376 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1368 transitions. Word has length 68 [2021-12-16 01:01:47,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:47,376 INFO L470 AbstractCegarLoop]: Abstraction has 1082 states and 1368 transitions. [2021-12-16 01:01:47,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 8 states have internal predecessors, (53), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2021-12-16 01:01:47,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1368 transitions. [2021-12-16 01:01:47,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-16 01:01:47,378 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:47,378 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:01:47,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:01:47,378 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:47,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash -608570004, now seen corresponding path program 1 times [2021-12-16 01:01:47,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:47,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918536019] [2021-12-16 01:01:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:47,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 01:01:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 01:01:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 01:01:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 01:01:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 01:01:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 01:01:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 01:01:47,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:47,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918536019] [2021-12-16 01:01:47,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918536019] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:01:47,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:01:47,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:01:47,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332858050] [2021-12-16 01:01:47,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:01:47,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 01:01:47,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 01:01:47,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-16 01:01:47,433 INFO L87 Difference]: Start difference. First operand 1082 states and 1368 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-16 01:01:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:47,669 INFO L93 Difference]: Finished difference Result 1311 states and 1649 transitions. [2021-12-16 01:01:47,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 01:01:47,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 98 [2021-12-16 01:01:47,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:47,671 INFO L225 Difference]: With dead ends: 1311 [2021-12-16 01:01:47,671 INFO L226 Difference]: Without dead ends: 537 [2021-12-16 01:01:47,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:01:47,673 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 369 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:47,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [378 Valid, 370 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:01:47,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2021-12-16 01:01:47,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 493. [2021-12-16 01:01:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 366 states have (on average 1.1830601092896176) internal successors, (433), 389 states have internal predecessors, (433), 66 states have call successors, (66), 50 states have call predecessors, (66), 60 states have return successors, (108), 66 states have call predecessors, (108), 66 states have call successors, (108) [2021-12-16 01:01:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 607 transitions. [2021-12-16 01:01:47,694 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 607 transitions. Word has length 98 [2021-12-16 01:01:47,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:47,694 INFO L470 AbstractCegarLoop]: Abstraction has 493 states and 607 transitions. [2021-12-16 01:01:47,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-16 01:01:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 607 transitions. [2021-12-16 01:01:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-16 01:01:47,696 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:01:47,696 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-12-16 01:01:47,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:01:47,696 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 01:01:47,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:01:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash 115908773, now seen corresponding path program 1 times [2021-12-16 01:01:47,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:01:47,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289726296] [2021-12-16 01:01:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:47,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:01:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-16 01:01:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 01:01:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 01:01:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-16 01:01:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 01:01:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-16 01:01:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-16 01:01:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-16 01:01:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-16 01:01:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 01:01:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 01:01:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-16 01:01:47,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:01:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289726296] [2021-12-16 01:01:47,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289726296] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 01:01:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988776322] [2021-12-16 01:01:47,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:01:47,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 01:01:47,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:01:47,816 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) [2021-12-16 01:01:47,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 01:01:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:01:47,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 01:01:47,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 01:01:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:01:48,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 01:01:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-16 01:01:48,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988776322] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 01:01:48,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 01:01:48,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2021-12-16 01:01:48,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666293663] [2021-12-16 01:01:48,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 01:01:48,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-16 01:01:48,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:01:48,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-16 01:01:48,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-12-16 01:01:48,536 INFO L87 Difference]: Start difference. First operand 493 states and 607 transitions. Second operand has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2021-12-16 01:01:49,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:01:49,593 INFO L93 Difference]: Finished difference Result 1004 states and 1261 transitions. [2021-12-16 01:01:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 01:01:49,594 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) Word has length 121 [2021-12-16 01:01:49,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:01:49,594 INFO L225 Difference]: With dead ends: 1004 [2021-12-16 01:01:49,595 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 01:01:49,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1137, Unknown=0, NotChecked=0, Total=1482 [2021-12-16 01:01:49,597 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 415 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:01:49,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 968 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:01:49,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 01:01:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 01:01:49,598 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) [2021-12-16 01:01:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 01:01:49,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2021-12-16 01:01:49,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:01:49,598 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 01:01:49,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.333333333333334) internal successors, (155), 10 states have internal predecessors, (155), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (24), 8 states have call predecessors, (24), 6 states have call successors, (24) [2021-12-16 01:01:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 01:01:49,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 01:01:49,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 01:01:49,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 01:01:49,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-16 01:01:49,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-16 01:01:52,921 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 466 473) the Hoare annotation is: (let ((.cse0 (not (<= ~waterLevel~0 2))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or (not (= 1 ~systemActive~0)) .cse0 .cse1) (or (= 0 ~systemActive~0) .cse0 .cse1 (not (<= 2 ~waterLevel~0))))) [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 466 473) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 466 473) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 356 362) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 356 362) the Hoare annotation is: true [2021-12-16 01:01:52,921 INFO L854 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point L409-1(lines 390 414) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L854 garLoopResultBuilder]: At program point L564(lines 549 567) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 562) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L858 garLoopResultBuilder]: For program point L558-2(lines 558 562) no Hoare annotation was computed. [2021-12-16 01:01:52,921 INFO L854 garLoopResultBuilder]: At program point L682(lines 677 685) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,921 INFO L854 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,922 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 390 414) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)))) [2021-12-16 01:01:52,922 INFO L854 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 390 414) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 411) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 485 493) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 485 493) the Hoare annotation is: true [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 485 493) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 610 621) the Hoare annotation is: true [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 610 621) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L614-1(lines 610 621) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 222 251) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 222 251) the Hoare annotation is: true [2021-12-16 01:01:52,922 INFO L861 garLoopResultBuilder]: At program point L247(lines 222 251) the Hoare annotation is: true [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 240) no Hoare annotation was computed. [2021-12-16 01:01:52,922 INFO L861 garLoopResultBuilder]: At program point L236-1(lines 236 240) the Hoare annotation is: true [2021-12-16 01:01:52,922 INFO L858 garLoopResultBuilder]: For program point L233(line 233) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L861 garLoopResultBuilder]: At program point L232-2(lines 232 246) the Hoare annotation is: true [2021-12-16 01:01:52,923 INFO L861 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: true [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L228-1(line 228) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L854 garLoopResultBuilder]: At program point L659(lines 654 662) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse11 (= ~pumpRunning~0 0))) (let ((.cse1 (and .cse4 .cse11)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse7 (and (<= |timeShift_getWaterLevel_#res#1| 2) (<= 2 |timeShift_getWaterLevel_#res#1|))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~systemActive~0 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 1 ~systemActive~0))) (.cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse0 .cse1 .cse5 .cse2) (or .cse6 .cse7 .cse0 .cse5 .cse2) (let ((.cse9 (= ~waterLevel~0 1))) (or .cse6 .cse0 .cse5 (and .cse8 .cse9 .cse10) (and .cse8 .cse9 .cse11) .cse12)) (or .cse6 .cse7 .cse0 .cse2 .cse3) (let ((.cse13 (<= ~waterLevel~0 2))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse5 (and .cse8 .cse10 .cse13) (and .cse8 .cse13 .cse11) .cse12))))) [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 432) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 329 355) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L854 garLoopResultBuilder]: At program point L69(lines 62 71) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (and .cse6 (= ~pumpRunning~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= 1 ~systemActive~0))) (.cse4 (and (<= 1 ~switchedOnBeforeTS~0) .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= ~systemActive~0 0))) (or .cse0 .cse1 .cse3 .cse2) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse3 .cse4 .cse5) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse3 .cse4 .cse5)))) [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L420(lines 420 437) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L854 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0))) (let ((.cse3 (not (= ~systemActive~0 0))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse9)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse10 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (let ((.cse7 (= ~waterLevel~0 1))) (or .cse4 .cse0 .cse5 (and .cse6 .cse7 .cse8) (and .cse6 .cse7 .cse9) .cse10)) (or .cse4 .cse0 .cse2 .cse3) (or .cse0 .cse1 .cse5 .cse2) (let ((.cse11 (<= ~waterLevel~0 2))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse5 (and .cse6 .cse8 .cse11) (and .cse6 .cse11 .cse9) .cse10)) (or .cse4 .cse0 .cse5 .cse2)))) [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-12-16 01:01:52,923 INFO L858 garLoopResultBuilder]: For program point L590(lines 590 594) no Hoare annotation was computed. [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L590-2(lines 586 597) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (and .cse2 .cse3 (<= ~waterLevel~0 2)) .cse4) (or .cse0 .cse1 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1) .cse3) .cse4) (or .cse0 .cse5 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L858 garLoopResultBuilder]: For program point L343-1(lines 343 349) no Hoare annotation was computed. [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L145(lines 140 147) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 .cse3) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse3) (or .cse0 .cse2 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L430(line 430) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (and .cse2 .cse3 (<= ~waterLevel~0 2)) .cse4) (or .cse0 .cse1 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1) .cse3) .cse4) (or .cse0 .cse5 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L426(line 426) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (and .cse2 .cse3 (<= ~waterLevel~0 2)) .cse4) (or .cse0 .cse1 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1) .cse3) .cse4) (or .cse0 .cse5 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (and .cse2 .cse3 (<= ~waterLevel~0 2)) .cse4) (or .cse0 .cse1 .cse5) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1) .cse3) .cse4) (or .cse0 .cse5 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L858 garLoopResultBuilder]: For program point L422-1(line 422) no Hoare annotation was computed. [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|))) (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (and .cse7 .cse6 (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse2 .cse4 (and .cse5 .cse6 (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2 (and .cse7 .cse5 .cse6) .cse4) (or .cse0 .cse1 .cse3 (not (= ~systemActive~0 0)))))) [2021-12-16 01:01:52,924 INFO L858 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-12-16 01:01:52,924 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L435(line 435) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 .cse2) (or .cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0)) .cse1 .cse3) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 .cse2) (or .cse0 .cse3 (not (= ~systemActive~0 0))))) [2021-12-16 01:01:52,924 INFO L854 garLoopResultBuilder]: At program point L435-1(lines 416 440) the Hoare annotation is: (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse8 (not (<= 1 |old(~pumpRunning~0)|)))) (and (let ((.cse0 (= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse0 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse1 (and .cse0 .cse2) .cse3 .cse4)) (let ((.cse6 (= ~waterLevel~0 1))) (or (not (<= 2 |old(~waterLevel~0)|)) .cse1 .cse3 (and .cse5 .cse6 .cse7) (and .cse5 .cse6 .cse2) .cse8)) (or .cse1 .cse4 (not (= ~systemActive~0 0))) (let ((.cse9 (<= ~waterLevel~0 2))) (or .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse3 (and .cse5 .cse7 .cse9) (and .cse5 .cse9 .cse2) .cse8)))) [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 329 355) the Hoare annotation is: (let ((.cse7 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|))) (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (and .cse7 .cse6 (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse2 .cse4 (and .cse5 .cse6 (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2 (and .cse7 .cse5 .cse6) .cse4) (or .cse0 .cse1 .cse3 (not (= ~systemActive~0 0)))))) [2021-12-16 01:01:52,925 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse11 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (let ((.cse12 (and .cse11 .cse8)) (.cse4 (not (= ~systemActive~0 0))) (.cse0 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (and (<= |timeShift_getWaterLevel_#res#1| 2) (<= 2 |timeShift_getWaterLevel_#res#1|) (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 1 ~systemActive~0))) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse9 (= ~pumpRunning~0 0)) (.cse10 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (let ((.cse7 (= ~waterLevel~0 1))) (or .cse0 .cse2 .cse5 (and .cse6 .cse7 .cse8) (and .cse6 .cse7 .cse9) .cse10)) (or (and .cse11 (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse2 .cse12 .cse5 .cse3) (or .cse2 .cse12 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse3) (let ((.cse13 (<= ~waterLevel~0 2))) (or .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse5 (and .cse6 .cse8 .cse13) (and .cse6 .cse13 .cse9) .cse10))))) [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L336-2(lines 332 354) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 329 355) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L572(lines 572 578) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L572-1(lines 572 578) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 190) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 184 190) no Hoare annotation was computed. [2021-12-16 01:01:52,925 INFO L854 garLoopResultBuilder]: At program point L209(lines 164 211) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= ~systemActive~0 0) .cse1 .cse3) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse1 .cse2) (and .cse0 .cse4 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:01:52,925 INFO L854 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= ~systemActive~0 0) .cse1 .cse3) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse1 .cse2) (and .cse0 .cse4 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L135(lines 130 138) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,926 INFO L861 garLoopResultBuilder]: At program point L292(lines 284 294) the Hoare annotation is: true [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L127(lines 123 129) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 312) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point L305-2(lines 305 312) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point L165(lines 164 211) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 207) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 (= ~systemActive~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= 0 ~systemActive~0))))) [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= ~systemActive~0 0) .cse1 .cse3) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse1 .cse2) (and .cse0 .cse4 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:01:52,926 INFO L861 garLoopResultBuilder]: At program point L314(lines 295 317) the Hoare annotation is: true [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L281(lines 277 283) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,926 INFO L854 garLoopResultBuilder]: At program point L120(lines 116 122) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,926 INFO L861 garLoopResultBuilder]: At program point L215(lines 154 219) the Hoare annotation is: true [2021-12-16 01:01:52,927 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2021-12-16 01:01:52,927 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 174 180) no Hoare annotation was computed. [2021-12-16 01:01:52,927 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 170) no Hoare annotation was computed. [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L59(lines 54 61) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L212(lines 163 213) the Hoare annotation is: false [2021-12-16 01:01:52,927 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 206) no Hoare annotation was computed. [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L200-2(lines 194 207) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= ~systemActive~0 0) .cse1 .cse3) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse4 .cse1 .cse2) (and .cse0 .cse4 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L580(lines 568 582) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= ~systemActive~0 0) (<= ~waterLevel~0 2) (= ~pumpRunning~0 0)) [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L545(lines 530 548) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= ~waterLevel~0 2)))) (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0) .cse1 .cse2 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) .cse0) (not (= |old(~pumpRunning~0)| 0)))) (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse1 .cse2 (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 364 388) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)))) [2021-12-16 01:01:52,927 INFO L854 garLoopResultBuilder]: At program point L446(lines 441 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,927 INFO L858 garLoopResultBuilder]: For program point L667(lines 667 673) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 543) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L854 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0) (= ~pumpRunning~0 0)) .cse1 (not (= |old(~pumpRunning~0)| 0))) (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L539-2(lines 539 543) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 385) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L854 garLoopResultBuilder]: At program point L672(lines 663 676) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (let ((.cse2 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse2) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse2) .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0)))))) [2021-12-16 01:01:52,928 INFO L854 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L383-1(lines 364 388) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 364 388) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L858 garLoopResultBuilder]: For program point L456(lines 456 462) no Hoare annotation was computed. [2021-12-16 01:01:52,928 INFO L854 garLoopResultBuilder]: At program point L454(line 454) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or (and (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0))))) [2021-12-16 01:01:52,929 INFO L854 garLoopResultBuilder]: At program point L456-2(lines 449 465) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (let ((.cse2 (<= 2 ~waterLevel~0))) (or (and .cse2 (= ~pumpRunning~0 0)) (and (<= 1 ~pumpRunning~0) .cse2) .cse0 .cse1 (not (= |old(~pumpRunning~0)| 0)))))) [2021-12-16 01:01:52,929 INFO L858 garLoopResultBuilder]: For program point L454-1(line 454) no Hoare annotation was computed. [2021-12-16 01:01:52,929 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 598 609) no Hoare annotation was computed. [2021-12-16 01:01:52,929 INFO L858 garLoopResultBuilder]: For program point L602-1(lines 598 609) no Hoare annotation was computed. [2021-12-16 01:01:52,929 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 598 609) the Hoare annotation is: (let ((.cse3 (not (= ~pumpRunning~0 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (<= 2 |old(~waterLevel~0)|)) .cse0 .cse1 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse2) (or .cse0 .cse3 .cse4 (not (= ~systemActive~0 0))) (or .cse0 .cse3 .cse1 .cse4) (or (not (<= 1 ~switchedOnBeforeTS~0)) .cse0 .cse1 .cse2 .cse4))) [2021-12-16 01:01:52,929 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 474 484) the Hoare annotation is: true [2021-12-16 01:01:52,929 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 474 484) no Hoare annotation was computed. [2021-12-16 01:01:52,929 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 474 484) no Hoare annotation was computed. [2021-12-16 01:01:52,929 INFO L861 garLoopResultBuilder]: At program point L627(lines 622 630) the Hoare annotation is: true [2021-12-16 01:01:52,934 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 01:01:52,935 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 01:01:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:01:52 BoogieIcfgContainer [2021-12-16 01:01:52,961 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 01:01:52,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 01:01:52,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 01:01:52,962 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 01:01:52,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:01:43" (3/4) ... [2021-12-16 01:01:52,965 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-16 01:01:52,969 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-12-16 01:01:52,970 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-16 01:01:52,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-12-16 01:01:52,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-16 01:01:52,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-16 01:01:52,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-16 01:01:52,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-16 01:01:52,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:01:52,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-16 01:01:52,991 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) [2021-12-16 01:01:52,991 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) [2021-12-16 01:01:52,992 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(2 <= \old(waterLevel)) || (((\result <= 2 && 2 <= \result) && 1 < tmp) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning))) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning))) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((((!(2 <= \old(waterLevel)) || (((\result <= 2 && 2 <= \result) && 1 < tmp) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-16 01:01:52,992 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-16 01:01:52,992 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) [2021-12-16 01:01:52,992 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || (\result <= 2 && 2 <= \result)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || (\result <= 2 && 2 <= \result)) || !(\old(waterLevel) <= 2)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-16 01:01:52,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning))) && ((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-16 01:01:52,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && (((((2 <= waterLevel && pumpRunning == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-16 01:01:52,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && (((((2 <= waterLevel && pumpRunning == 0) || (1 <= \result && pumpRunning == 0)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-16 01:01:52,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && ((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-16 01:01:52,993 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning))) && ((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) [2021-12-16 01:01:52,994 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || ((\result == 0 && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) && (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) [2021-12-16 01:01:53,009 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-16 01:01:53,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 01:01:53,010 INFO L158 Benchmark]: Toolchain (without parser) took 10206.97ms. Allocated memory was 90.2MB in the beginning and 174.1MB in the end (delta: 83.9MB). Free memory was 56.6MB in the beginning and 140.4MB in the end (delta: -83.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:01:53,010 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:01:53,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.13ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 57.7MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 01:01:53,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.73ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 55.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-16 01:01:53,011 INFO L158 Benchmark]: Boogie Preprocessor took 26.42ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 01:01:53,011 INFO L158 Benchmark]: RCFGBuilder took 493.86ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 35.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-16 01:01:53,011 INFO L158 Benchmark]: TraceAbstraction took 9056.04ms. Allocated memory was 90.2MB in the beginning and 174.1MB in the end (delta: 83.9MB). Free memory was 35.4MB in the beginning and 147.7MB in the end (delta: -112.3MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2021-12-16 01:01:53,011 INFO L158 Benchmark]: Witness Printer took 47.41ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 140.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 01:01:53,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 90.2MB. Free memory was 47.7MB in the beginning and 47.6MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.13ms. Allocated memory is still 90.2MB. Free memory was 56.4MB in the beginning and 57.7MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.73ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 55.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.42ms. Allocated memory is still 90.2MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 493.86ms. Allocated memory is still 90.2MB. Free memory was 53.5MB in the beginning and 35.8MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9056.04ms. Allocated memory was 90.2MB in the beginning and 174.1MB in the end (delta: 83.9MB). Free memory was 35.4MB in the beginning and 147.7MB in the end (delta: -112.3MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. * Witness Printer took 47.41ms. Allocated memory is still 174.1MB. Free memory was 147.7MB in the beginning and 140.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 144]: 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, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2389 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2334 mSDsluCounter, 4766 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3200 mSDsCounter, 861 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2594 IncrementalHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 861 mSolverCounterUnsat, 1566 mSDtfsCounter, 2594 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 647 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1082occurred in iteration=8, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 279 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 2243 PreInvPairs, 2474 NumberOfFragments, 2354 HoareAnnotationTreeSize, 2243 FomulaSimplifications, 3021 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 54 FomulaSimplificationsInter, 12756 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 770 NumberOfCodeBlocks, 770 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 879 ConstructedInterpolants, 0 QuantifiedInterpolants, 1718 SizeOfPredicates, 3 NumberOfNonLiveVariables, 535 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 133/174 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: 568]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && systemActive == 0) && waterLevel <= 2) && pumpRunning == 0 - InvariantResult [Line: 654]: Loop Invariant Derived loop invariant: (((((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || (\result <= 2 && 2 <= \result)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(2 <= \old(waterLevel)) || (\result <= 2 && 2 <= \result)) || !(\old(waterLevel) <= 2)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && ((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && waterLevel <= 2) && systemActive == 1) && pumpRunning == 0) || (((splverifierCounter == 0 && systemActive == 0) && waterLevel <= 2) && pumpRunning == 0)) || ((((splverifierCounter == 0 && 1 <= switchedOnBeforeTS) && 1 <= pumpRunning) && waterLevel <= 2) && systemActive == 1)) || ((((splverifierCounter == 0 && 1 <= pumpRunning) && 2 <= waterLevel) && waterLevel <= 2) && systemActive == 1) - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: ((((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning))) && ((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: ((((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((!(\old(waterLevel) <= 2) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (waterLevel == 1 && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 284]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 663]: Loop Invariant Derived loop invariant: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && (((((2 <= waterLevel && pumpRunning == 0) || (1 <= \result && pumpRunning == 0)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || pumpRunning == \old(pumpRunning)) || !(1 <= \old(pumpRunning))) && ((!(1 == systemActive) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((((((((!(2 <= \old(waterLevel)) || (((\result <= 2 && 2 <= \result) && 1 < tmp) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(\old(pumpRunning) == 0)) || !(systemActive == 0)) && (((((!(2 <= \old(waterLevel)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == \old(pumpRunning))) || ((1 <= switchedOnBeforeTS && waterLevel == 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((((waterLevel == \old(waterLevel) && 1 <= pumpRunning) && 2 <= waterLevel) || !(\old(waterLevel) <= 2)) || (waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning))) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == \old(pumpRunning))) || !(\old(pumpRunning) == 0)) || !(systemActive == 0))) && ((((!(2 <= \old(waterLevel)) || (((\result <= 2 && 2 <= \result) && 1 < tmp) && tmp <= 2)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 <= \old(switchedOnBeforeTS))) || !(1 == systemActive)) || ((1 <= switchedOnBeforeTS && pumpRunning == \old(pumpRunning)) && waterLevel <= 2)) || ((1 <= switchedOnBeforeTS && waterLevel <= 2) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || ((\result == 0 && tmp___0 == 0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0)) && (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && ((((1 <= pumpRunning && 2 <= waterLevel) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: (((!(1 <= switchedOnBeforeTS) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(1 <= \old(pumpRunning))) && (((((2 <= waterLevel && pumpRunning == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) RESULT: Ultimate proved your program to be correct! [2021-12-16 01:01:53,054 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