./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product34.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 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:19:19,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:19:19,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:19:19,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:19:19,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:19:19,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:19:19,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:19:19,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:19:19,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:19:19,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:19:19,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:19:19,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:19:19,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:19:19,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:19:19,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:19:19,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:19:19,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:19:19,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:19:19,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:19:19,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:19:19,593 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:19:19,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:19:19,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:19:19,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:19:19,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:19:19,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:19:19,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:19:19,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:19:19,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:19:19,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:19:19,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:19:19,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:19:19,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:19:19,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:19:19,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:19:19,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:19:19,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:19:19,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:19:19,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:19:19,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:19:19,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:19:19,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:19:19,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:19:19,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:19:19,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:19:19,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:19:19,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:19:19,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:19:19,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:19:19,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:19:19,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:19:19,699 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:19:19,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:19:19,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:19:19,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:19:19,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:19:19,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:19:19,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:19:19,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:19:19,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:19:19,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:19:19,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:19:19,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:19:19,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:19:19,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:19:19,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:19:19,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:19:19,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:19,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:19:19,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:19:19,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:19:19,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:19:19,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:19:19,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:19:19,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:19:19,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:19:19,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750fa47004e8b71818a419cd0705c167dc764081be79a2bed3ff642b9979f0ab [2022-07-12 06:19:20,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:19:20,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:19:20,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:19:20,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:19:20,235 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:19:20,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2022-07-12 06:19:20,310 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/461d17bc9/92530474e9834fee9e879d4ee9041c78/FLAGb2998dcb6 [2022-07-12 06:19:20,977 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:19:20,978 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2022-07-12 06:19:20,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/461d17bc9/92530474e9834fee9e879d4ee9041c78/FLAGb2998dcb6 [2022-07-12 06:19:21,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/461d17bc9/92530474e9834fee9e879d4ee9041c78 [2022-07-12 06:19:21,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:19:21,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:19:21,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:21,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:19:21,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:19:21,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:21" (1/1) ... [2022-07-12 06:19:21,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c7c719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:21, skipping insertion in model container [2022-07-12 06:19:21,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:19:21" (1/1) ... [2022-07-12 06:19:21,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:19:21,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:19:21,839 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_spec3_product34.cil.c[16171,16184] [2022-07-12 06:19:21,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:21,892 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:19:21,995 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_spec3_product34.cil.c[16171,16184] [2022-07-12 06:19:22,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:19:22,030 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:19:22,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22 WrapperNode [2022-07-12 06:19:22,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:19:22,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:22,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:19:22,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:19:22,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,112 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 232 [2022-07-12 06:19:22,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:19:22,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:19:22,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:19:22,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:19:22,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:19:22,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:19:22,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:19:22,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:19:22,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (1/1) ... [2022-07-12 06:19:22,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:19:22,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:19:22,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 06:19:22,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 06:19:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:19:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:19:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:19:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:19:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:19:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:19:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:19:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:19:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:19:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:19:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:19:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:19:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:19:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:19:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:19:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:19:22,355 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:19:22,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:19:22,938 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:19:22,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:19:22,944 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:19:22,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:22 BoogieIcfgContainer [2022-07-12 06:19:22,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:19:22,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:19:22,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:19:22,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:19:22,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:19:21" (1/3) ... [2022-07-12 06:19:22,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b887be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:22, skipping insertion in model container [2022-07-12 06:19:22,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:19:22" (2/3) ... [2022-07-12 06:19:22,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b887be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:19:22, skipping insertion in model container [2022-07-12 06:19:22,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:22" (3/3) ... [2022-07-12 06:19:22,974 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2022-07-12 06:19:22,989 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:19:23,000 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:19:23,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:19:23,096 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a550d5d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7fdc59b3 [2022-07-12 06:19:23,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:19:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-12 06:19:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 06:19:23,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:23,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:23,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:23,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 77119383, now seen corresponding path program 1 times [2022-07-12 06:19:23,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:23,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929488368] [2022-07-12 06:19:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:19:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:23,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:23,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929488368] [2022-07-12 06:19:23,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929488368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:23,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:23,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:19:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195809043] [2022-07-12 06:19:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:23,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:19:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:23,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:19:23,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:23,639 INFO L87 Difference]: Start difference. First operand has 77 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:23,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:23,682 INFO L93 Difference]: Finished difference Result 146 states and 199 transitions. [2022-07-12 06:19:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:19:23,685 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-12 06:19:23,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:23,695 INFO L225 Difference]: With dead ends: 146 [2022-07-12 06:19:23,696 INFO L226 Difference]: Without dead ends: 68 [2022-07-12 06:19:23,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:19:23,719 INFO L413 NwaCegarLoop]: 96 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, 96 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:23,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:23,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-12 06:19:23,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-07-12 06:19:23,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-12 06:19:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2022-07-12 06:19:23,832 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 25 [2022-07-12 06:19:23,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:23,833 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2022-07-12 06:19:23,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-07-12 06:19:23,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 06:19:23,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:23,838 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:23,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:19:23,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:23,840 INFO L85 PathProgramCache]: Analyzing trace with hash -736072085, now seen corresponding path program 1 times [2022-07-12 06:19:23,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886650550] [2022-07-12 06:19:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:19:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:24,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:24,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886650550] [2022-07-12 06:19:24,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886650550] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:24,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:24,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:24,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150803655] [2022-07-12 06:19:24,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:24,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:24,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:24,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:24,057 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:24,105 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2022-07-12 06:19:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-12 06:19:24,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:24,111 INFO L225 Difference]: With dead ends: 101 [2022-07-12 06:19:24,112 INFO L226 Difference]: Without dead ends: 59 [2022-07-12 06:19:24,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:24,129 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 13 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:24,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:24,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-07-12 06:19:24,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-07-12 06:19:24,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.3404255319148937) internal successors, (63), 52 states have internal predecessors, (63), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-12 06:19:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-07-12 06:19:24,144 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 26 [2022-07-12 06:19:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:24,149 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-07-12 06:19:24,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,150 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-07-12 06:19:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-12 06:19:24,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:24,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:24,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:19:24,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1036891216, now seen corresponding path program 1 times [2022-07-12 06:19:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:24,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760689540] [2022-07-12 06:19:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:24,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:19:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:24,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:24,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760689540] [2022-07-12 06:19:24,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760689540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:24,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:24,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:24,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66939135] [2022-07-12 06:19:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:24,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:24,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:24,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:24,295 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:24,378 INFO L93 Difference]: Finished difference Result 111 states and 144 transitions. [2022-07-12 06:19:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-12 06:19:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:24,380 INFO L225 Difference]: With dead ends: 111 [2022-07-12 06:19:24,380 INFO L226 Difference]: Without dead ends: 59 [2022-07-12 06:19:24,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:19:24,382 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 100 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:24,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 172 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-07-12 06:19:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-07-12 06:19:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 52 states have internal predecessors, (62), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-12 06:19:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2022-07-12 06:19:24,396 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 31 [2022-07-12 06:19:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:24,397 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2022-07-12 06:19:24,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,397 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2022-07-12 06:19:24,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 06:19:24,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:24,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:24,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:19:24,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:24,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:24,405 INFO L85 PathProgramCache]: Analyzing trace with hash -349370363, now seen corresponding path program 1 times [2022-07-12 06:19:24,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:24,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457113909] [2022-07-12 06:19:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:24,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:19:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:19:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:24,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:24,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457113909] [2022-07-12 06:19:24,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457113909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:24,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:24,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:24,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750255320] [2022-07-12 06:19:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:24,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:24,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:24,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:24,464 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:24,535 INFO L93 Difference]: Finished difference Result 152 states and 195 transitions. [2022-07-12 06:19:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:24,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2022-07-12 06:19:24,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:24,541 INFO L225 Difference]: With dead ends: 152 [2022-07-12 06:19:24,541 INFO L226 Difference]: Without dead ends: 100 [2022-07-12 06:19:24,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:24,548 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 47 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:24,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 146 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-07-12 06:19:24,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2022-07-12 06:19:24,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 83 states have internal predecessors, (101), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-12 06:19:24,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 123 transitions. [2022-07-12 06:19:24,584 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 123 transitions. Word has length 36 [2022-07-12 06:19:24,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:24,584 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 123 transitions. [2022-07-12 06:19:24,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2022-07-12 06:19:24,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 06:19:24,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:24,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:24,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:19:24,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:24,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:24,591 INFO L85 PathProgramCache]: Analyzing trace with hash 2107801392, now seen corresponding path program 1 times [2022-07-12 06:19:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:24,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857856548] [2022-07-12 06:19:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:24,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 06:19:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:24,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857856548] [2022-07-12 06:19:24,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857856548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:24,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:24,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:24,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060344669] [2022-07-12 06:19:24,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:24,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:24,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:24,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:24,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:24,743 INFO L87 Difference]: Start difference. First operand 98 states and 123 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:24,810 INFO L93 Difference]: Finished difference Result 209 states and 266 transitions. [2022-07-12 06:19:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:19:24,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 06:19:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:24,814 INFO L225 Difference]: With dead ends: 209 [2022-07-12 06:19:24,823 INFO L226 Difference]: Without dead ends: 118 [2022-07-12 06:19:24,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:19:24,831 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 50 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:24,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 351 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:24,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-12 06:19:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 101. [2022-07-12 06:19:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.3) internal successors, (104), 86 states have internal predecessors, (104), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-12 06:19:24,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2022-07-12 06:19:24,875 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 40 [2022-07-12 06:19:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:24,876 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2022-07-12 06:19:24,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:24,876 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2022-07-12 06:19:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 06:19:24,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:24,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:19:24,878 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:24,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash 113656686, now seen corresponding path program 1 times [2022-07-12 06:19:24,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:24,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188658223] [2022-07-12 06:19:24,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 06:19:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:24,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:24,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188658223] [2022-07-12 06:19:24,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188658223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:24,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:24,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 06:19:24,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190051970] [2022-07-12 06:19:24,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:24,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 06:19:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:24,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 06:19:24,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 06:19:24,980 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:25,008 INFO L93 Difference]: Finished difference Result 215 states and 275 transitions. [2022-07-12 06:19:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 06:19:25,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 06:19:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:25,012 INFO L225 Difference]: With dead ends: 215 [2022-07-12 06:19:25,012 INFO L226 Difference]: Without dead ends: 121 [2022-07-12 06:19:25,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:25,014 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 37 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:25,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 234 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-12 06:19:25,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 103. [2022-07-12 06:19:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.2926829268292683) internal successors, (106), 88 states have internal predecessors, (106), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-12 06:19:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2022-07-12 06:19:25,037 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 40 [2022-07-12 06:19:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:25,038 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2022-07-12 06:19:25,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:25,038 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2022-07-12 06:19:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-12 06:19:25,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:25,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:25,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:19:25,039 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:25,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:25,040 INFO L85 PathProgramCache]: Analyzing trace with hash -703991764, now seen corresponding path program 1 times [2022-07-12 06:19:25,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:25,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77469860] [2022-07-12 06:19:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:25,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 06:19:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:25,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:25,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77469860] [2022-07-12 06:19:25,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77469860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:25,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:25,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:19:25,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242593008] [2022-07-12 06:19:25,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:25,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:19:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:25,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:19:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:25,099 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:25,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:25,153 INFO L93 Difference]: Finished difference Result 245 states and 308 transitions. [2022-07-12 06:19:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:19:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-07-12 06:19:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:25,155 INFO L225 Difference]: With dead ends: 245 [2022-07-12 06:19:25,155 INFO L226 Difference]: Without dead ends: 149 [2022-07-12 06:19:25,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:19:25,156 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 39 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:25,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 137 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-07-12 06:19:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2022-07-12 06:19:25,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 124 states have internal predecessors, (149), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-07-12 06:19:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 181 transitions. [2022-07-12 06:19:25,181 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 181 transitions. Word has length 40 [2022-07-12 06:19:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:25,181 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 181 transitions. [2022-07-12 06:19:25,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-12 06:19:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 181 transitions. [2022-07-12 06:19:25,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 06:19:25,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:25,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:25,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:19:25,184 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash -430431235, now seen corresponding path program 1 times [2022-07-12 06:19:25,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:25,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591642691] [2022-07-12 06:19:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 06:19:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 06:19:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:25,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:25,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591642691] [2022-07-12 06:19:25,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591642691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:25,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:25,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:25,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550957311] [2022-07-12 06:19:25,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:25,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:25,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:25,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:25,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:25,260 INFO L87 Difference]: Start difference. First operand 147 states and 181 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:25,308 INFO L93 Difference]: Finished difference Result 288 states and 356 transitions. [2022-07-12 06:19:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:25,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-07-12 06:19:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:25,312 INFO L225 Difference]: With dead ends: 288 [2022-07-12 06:19:25,312 INFO L226 Difference]: Without dead ends: 148 [2022-07-12 06:19:25,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:19:25,314 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 30 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:25,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 287 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:19:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-07-12 06:19:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 145. [2022-07-12 06:19:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 122 states have internal predecessors, (145), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-07-12 06:19:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 177 transitions. [2022-07-12 06:19:25,328 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 177 transitions. Word has length 42 [2022-07-12 06:19:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:25,330 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 177 transitions. [2022-07-12 06:19:25,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-12 06:19:25,330 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 177 transitions. [2022-07-12 06:19:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-07-12 06:19:25,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:25,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:25,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:19:25,331 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash -994693806, now seen corresponding path program 1 times [2022-07-12 06:19:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:25,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659469805] [2022-07-12 06:19:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:19:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 06:19:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:25,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659469805] [2022-07-12 06:19:25,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659469805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:25,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:25,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:19:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574523485] [2022-07-12 06:19:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:25,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:19:25,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:19:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:19:25,421 INFO L87 Difference]: Start difference. First operand 145 states and 177 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:19:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:25,624 INFO L93 Difference]: Finished difference Result 267 states and 332 transitions. [2022-07-12 06:19:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 06:19:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 44 [2022-07-12 06:19:25,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:25,626 INFO L225 Difference]: With dead ends: 267 [2022-07-12 06:19:25,626 INFO L226 Difference]: Without dead ends: 104 [2022-07-12 06:19:25,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:19:25,628 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 106 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:25,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 396 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:19:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-12 06:19:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-07-12 06:19:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.2125) internal successors, (97), 85 states have internal predecessors, (97), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-07-12 06:19:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2022-07-12 06:19:25,635 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 44 [2022-07-12 06:19:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:25,636 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2022-07-12 06:19:25,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-12 06:19:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2022-07-12 06:19:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:19:25,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:25,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:25,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:19:25,637 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:25,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:25,637 INFO L85 PathProgramCache]: Analyzing trace with hash -622219357, now seen corresponding path program 1 times [2022-07-12 06:19:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:25,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436505583] [2022-07-12 06:19:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:25,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:19:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:19:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 06:19:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:25,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:25,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436505583] [2022-07-12 06:19:25,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436505583] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:25,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:25,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:19:25,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686360968] [2022-07-12 06:19:25,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:25,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:19:25,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:25,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:19:25,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:19:25,694 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:25,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:25,898 INFO L93 Difference]: Finished difference Result 206 states and 248 transitions. [2022-07-12 06:19:25,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:19:25,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:19:25,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:25,899 INFO L225 Difference]: With dead ends: 206 [2022-07-12 06:19:25,899 INFO L226 Difference]: Without dead ends: 154 [2022-07-12 06:19:25,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-12 06:19:25,900 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 110 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:25,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 235 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:19:25,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-07-12 06:19:25,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 145. [2022-07-12 06:19:25,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 121 states have internal predecessors, (140), 15 states have call successors, (15), 15 states have call predecessors, (15), 15 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) [2022-07-12 06:19:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 173 transitions. [2022-07-12 06:19:25,908 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 173 transitions. Word has length 46 [2022-07-12 06:19:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:25,927 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 173 transitions. [2022-07-12 06:19:25,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:25,927 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 173 transitions. [2022-07-12 06:19:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:19:25,928 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:25,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:25,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 06:19:25,928 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:25,929 INFO L85 PathProgramCache]: Analyzing trace with hash -403364639, now seen corresponding path program 1 times [2022-07-12 06:19:25,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:25,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290076038] [2022-07-12 06:19:25,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:25,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:19:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:19:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 06:19:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:25,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:25,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:25,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290076038] [2022-07-12 06:19:25,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290076038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:25,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:25,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:19:25,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019502326] [2022-07-12 06:19:25,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:25,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:19:25,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:25,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:19:25,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:19:25,978 INFO L87 Difference]: Start difference. First operand 145 states and 173 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:26,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:26,233 INFO L93 Difference]: Finished difference Result 255 states and 309 transitions. [2022-07-12 06:19:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 06:19:26,234 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:19:26,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:26,235 INFO L225 Difference]: With dead ends: 255 [2022-07-12 06:19:26,235 INFO L226 Difference]: Without dead ends: 159 [2022-07-12 06:19:26,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:19:26,236 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 70 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:26,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 190 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 06:19:26,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-07-12 06:19:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-07-12 06:19:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 125 states have (on average 1.2) internal successors, (150), 133 states have internal predecessors, (150), 17 states have call successors, (17), 15 states have call predecessors, (17), 16 states have return successors, (21), 16 states have call predecessors, (21), 17 states have call successors, (21) [2022-07-12 06:19:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 188 transitions. [2022-07-12 06:19:26,246 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 188 transitions. Word has length 46 [2022-07-12 06:19:26,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:26,246 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 188 transitions. [2022-07-12 06:19:26,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:26,246 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 188 transitions. [2022-07-12 06:19:26,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-12 06:19:26,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:19:26,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:26,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 06:19:26,247 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:19:26,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:19:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1221013089, now seen corresponding path program 1 times [2022-07-12 06:19:26,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:19:26,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057995578] [2022-07-12 06:19:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:19:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:19:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:26,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 06:19:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 06:19:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 06:19:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:19:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:19:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:19:26,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057995578] [2022-07-12 06:19:26,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057995578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:19:26,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:19:26,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 06:19:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377899773] [2022-07-12 06:19:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:19:26,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 06:19:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:19:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 06:19:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-12 06:19:26,343 INFO L87 Difference]: Start difference. First operand 159 states and 188 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:26,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:19:26,780 INFO L93 Difference]: Finished difference Result 230 states and 275 transitions. [2022-07-12 06:19:26,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:19:26,781 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2022-07-12 06:19:26,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:19:26,782 INFO L225 Difference]: With dead ends: 230 [2022-07-12 06:19:26,782 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:19:26,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-12 06:19:26,783 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 64 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 06:19:26,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 255 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 06:19:26,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:19:26,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:19:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 06:19:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:19:26,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2022-07-12 06:19:26,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:19:26,784 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:19:26,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-12 06:19:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:19:26,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:19:26,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:19:26,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 06:19:26,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:19:28,405 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 257 263) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 257 263) the Hoare annotation is: true [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point L831-1(lines 827 838) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 827 838) the Hoare annotation is: true [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 827 838) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 839 847) the Hoare annotation is: true [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 839 847) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 839 847) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L902 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: true [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point L129-1(line 129) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 123 152) no Hoare annotation was computed. [2022-07-12 06:19:28,406 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 123 152) the Hoare annotation is: true [2022-07-12 06:19:28,407 INFO L902 garLoopResultBuilder]: At program point L148(lines 123 152) the Hoare annotation is: true [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 141) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L902 garLoopResultBuilder]: At program point L137-1(lines 137 141) the Hoare annotation is: true [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L902 garLoopResultBuilder]: At program point L133-2(lines 133 147) the Hoare annotation is: true [2022-07-12 06:19:28,407 INFO L895 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_processEnvironment_~tmp~2#1| 0) (not (= 2 ~waterLevel~0)) (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 1)) .cse0))) [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 233 256) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 787) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L895 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-07-12 06:19:28,407 INFO L899 garLoopResultBuilder]: For program point L796(line 796) no Hoare annotation was computed. [2022-07-12 06:19:28,407 INFO L895 garLoopResultBuilder]: At program point L284-1(lines 265 289) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse5 (not .cse0)) (.cse1 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) (and .cse3 .cse4 .cse5) .cse0) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 (and .cse3 .cse4 (not (= 2 ~waterLevel~0)) .cse6 .cse5) .cse0 (and .cse6 .cse1)))))) [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 375) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L371-2(lines 371 375) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L895 garLoopResultBuilder]: At program point L322(lines 317 325) the Hoare annotation is: (let ((.cse0 (= |timeShift_isPumpRunning_#res#1| 1)) (.cse1 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) (and .cse0 .cse1) .cse2) (or .cse3 .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1)) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse2))) [2022-07-12 06:19:28,408 INFO L895 garLoopResultBuilder]: At program point L797(lines 792 799) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 1)) .cse0))) [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 890) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L244-1(lines 244 250) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 281) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 286) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L895 garLoopResultBuilder]: At program point L876(lines 871 879) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse0 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 .cse4 (= |timeShift_getWaterLevel_#res#1| 1))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 (and .cse3 (not (= 2 |timeShift_getWaterLevel_#res#1|)) .cse4 (not (= 2 ~waterLevel~0)) .cse5) .cse0 (and .cse5 .cse1))))) [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L777(lines 777 783) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 786) no Hoare annotation was computed. [2022-07-12 06:19:28,408 INFO L895 garLoopResultBuilder]: At program point L773-1(lines 758 790) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse5 (not .cse0)) (.cse1 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) (and .cse3 .cse4 .cse5) .cse0) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 (and .cse3 .cse4 (not (= 2 ~waterLevel~0)) .cse6 .cse5) .cse0 (and .cse6 .cse1)))))) [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~2#1| 0)) (.cse5 (not .cse0)) (.cse1 (= ~pumpRunning~0 1))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or .cse2 (not (= |old(~waterLevel~0)| 1)) (and .cse3 .cse4 .cse5) .cse0) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 (and .cse3 .cse4 (not (= 2 ~waterLevel~0)) .cse6 .cse5) .cse0 (and .cse6 .cse1)))))) [2022-07-12 06:19:28,409 INFO L899 garLoopResultBuilder]: For program point L765-1(line 765) no Hoare annotation was computed. [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point L889(lines 880 893) the Hoare annotation is: (let ((.cse0 (= |timeShift_isHighWaterSensorDry_#res#1| 1)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse3 (not (= 2 ~waterLevel~0)) .cse4) .cse1 .cse2 (and .cse3 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse4))) (or (not (= |old(~pumpRunning~0)| 1)) .cse2))) [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point L377(lines 362 380) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse2 (= |timeShift_isHighWaterLevel_#res#1| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3)) (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse6 (not .cse1))) (or .cse0 (and .cse4 (not (= 2 ~waterLevel~0)) .cse5 .cse6) .cse1 (and .cse4 (not .cse3) (= |timeShift_isHighWaterLevel_~tmp~3#1| 0) (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse5 .cse6 (not .cse2)))) (or (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 233 256) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 (and .cse1 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2022-07-12 06:19:28,409 INFO L899 garLoopResultBuilder]: For program point L237-1(lines 236 255) no Hoare annotation was computed. [2022-07-12 06:19:28,409 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 233 256) no Hoare annotation was computed. [2022-07-12 06:19:28,409 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 796) no Hoare annotation was computed. [2022-07-12 06:19:28,409 INFO L899 garLoopResultBuilder]: For program point L807(lines 807 811) no Hoare annotation was computed. [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point L295(lines 290 297) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 1))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 1)) .cse1))) [2022-07-12 06:19:28,409 INFO L895 garLoopResultBuilder]: At program point L807-2(lines 803 814) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-07-12 06:19:28,410 INFO L902 garLoopResultBuilder]: At program point L192(lines 185 194) the Hoare annotation is: true [2022-07-12 06:19:28,410 INFO L902 garLoopResultBuilder]: At program point L217(lines 198 220) the Hoare annotation is: true [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~1#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 (not (= 2 ~waterLevel~0)) .cse1 .cse2 .cse3))) [2022-07-12 06:19:28,410 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~1#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 (not (= 2 ~waterLevel~0)) .cse1 .cse2 .cse3))) [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 107) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~1#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:19:28,410 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L925(lines 920 928) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~1#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L182(lines 178 184) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L917(lines 913 919) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-12 06:19:28,411 INFO L902 garLoopResultBuilder]: At program point L116(lines 55 120) the Hoare annotation is: true [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 215) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L910(lines 906 912) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point L208-2(lines 208 215) no Hoare annotation was computed. [2022-07-12 06:19:28,411 INFO L895 garLoopResultBuilder]: At program point L386(lines 381 388) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~1#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3))) [2022-07-12 06:19:28,411 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 815 826) no Hoare annotation was computed. [2022-07-12 06:19:28,412 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 815 826) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~pumpRunning~0 1)) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (= |old(~waterLevel~0)| 2)))) [2022-07-12 06:19:28,412 INFO L899 garLoopResultBuilder]: For program point L819-1(lines 815 826) no Hoare annotation was computed. [2022-07-12 06:19:28,417 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 06:19:28,419 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:19:28,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:19:28 BoogieIcfgContainer [2022-07-12 06:19:28,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:19:28,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:19:28,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:19:28,447 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:19:28,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:19:22" (3/4) ... [2022-07-12 06:19:28,450 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:19:28,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:19:28,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:19:28,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-12 06:19:28,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:19:28,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:19:28,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:19:28,486 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-12 06:19:28,486 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:19:28,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:19:28,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:19:28,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:19:28,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:19:28,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:19:28,513 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-12 06:19:28,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-12 06:19:28,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) && pumpRunning == 1) || (((((pumpRunning == 0 && \result == 1) && !(2 == waterLevel)) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-12 06:19:28,514 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (!(\old(pumpRunning) == 0) || 0 == systemActive) [2022-07-12 06:19:28,516 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) [2022-07-12 06:19:28,516 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) && pumpRunning == 1) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-07-12 06:19:28,516 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) [2022-07-12 06:19:28,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && tmp == 0) && \result == 1))) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && !(2 == \result)) && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) [2022-07-12 06:19:28,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || 0 == systemActive) && ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (!(\old(pumpRunning) == 1) || 0 == systemActive) [2022-07-12 06:19:28,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || (\result == 0 && tmp___0 == 0)) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || ((((((pumpRunning == 0 && !(tmp___0 == 0)) && tmp == 0) && \result == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && !(\result == 0)))) && (!(\old(pumpRunning) == 1) || 0 == systemActive) [2022-07-12 06:19:28,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 1) || (\result == 1 && pumpRunning == 1)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || ((\result == 1 && \old(waterLevel) == waterLevel) && pumpRunning == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) [2022-07-12 06:19:28,517 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive)) && (!(\old(pumpRunning) == 1) || 0 == systemActive) [2022-07-12 06:19:28,518 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || 0 == systemActive) && (!(\old(pumpRunning) == 1) || 0 == systemActive) [2022-07-12 06:19:28,542 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:19:28,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:19:28,543 INFO L158 Benchmark]: Toolchain (without parser) took 7255.62ms. Allocated memory was 86.0MB in the beginning and 153.1MB in the end (delta: 67.1MB). Free memory was 47.1MB in the beginning and 102.4MB in the end (delta: -55.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,543 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:19:28,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.65ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 46.9MB in the beginning and 96.1MB in the end (delta: -49.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.34ms. Allocated memory is still 125.8MB. Free memory was 96.1MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,544 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 125.8MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,544 INFO L158 Benchmark]: RCFGBuilder took 800.07ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 76.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,545 INFO L158 Benchmark]: TraceAbstraction took 5497.85ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 75.9MB in the beginning and 107.6MB in the end (delta: -31.7MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,545 INFO L158 Benchmark]: Witness Printer took 95.35ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 102.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:19:28,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.65ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 46.9MB in the beginning and 96.1MB in the end (delta: -49.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.34ms. Allocated memory is still 125.8MB. Free memory was 96.1MB in the beginning and 94.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.36ms. Allocated memory is still 125.8MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 800.07ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 76.7MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5497.85ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 75.9MB in the beginning and 107.6MB in the end (delta: -31.7MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Witness Printer took 95.35ms. Allocated memory is still 153.1MB. Free memory was 107.6MB in the beginning and 102.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 796]: 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 7 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 682 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 666 mSDsluCounter, 2630 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1653 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 977 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=11, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 473 PreInvPairs, 584 NumberOfFragments, 878 HoareAnnotationTreeSize, 473 FomulaSimplifications, 94 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 35 FomulaSimplificationsInter, 2726 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 462 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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: 317]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || (\result == 1 && pumpRunning == 1)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || 0 == systemActive) || ((\result == 1 && \old(waterLevel) == waterLevel) && pumpRunning == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((\result == 1 && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) && pumpRunning == 1) || (((((pumpRunning == 0 && \result == 1) && !(2 == waterLevel)) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) - InvariantResult [Line: 803]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (!(\old(pumpRunning) == 0) || 0 == systemActive) - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((((\result == 1 || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || 0 == systemActive) && ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (!(\old(pumpRunning) == 1) || 0 == systemActive) - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || 0 == systemActive) && (!(\old(pumpRunning) == 1) || 0 == systemActive) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: ((((\result == 1 && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) && pumpRunning == 1) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || (\result == 0 && tmp___0 == 0)) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || ((((((pumpRunning == 0 && !(tmp___0 == 0)) && tmp == 0) && \result == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive)) && !(\result == 0)))) && (!(\old(pumpRunning) == 1) || 0 == systemActive) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 758]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && !(0 == systemActive))) || 0 == systemActive)) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive)) && (!(\old(pumpRunning) == 1) || 0 == systemActive) - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 1) || 0 == systemActive) || pumpRunning == 1) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || 0 == systemActive) || ((pumpRunning == 0 && tmp == 0) && \result == 1))) && (((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && !(2 == \result)) && tmp == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-07-12 06:19:28,621 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