./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec2_product52.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 --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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:14:14,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:14:14,093 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:14:14,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:14:14,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:14:14,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:14:14,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:14:14,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:14:14,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:14:14,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:14:14,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:14:14,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:14:14,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:14:14,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:14:14,138 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:14:14,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:14:14,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:14:14,139 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:14:14,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:14:14,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:14:14,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:14:14,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:14:14,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:14:14,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:14:14,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:14:14,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:14:14,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:14:14,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:14:14,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:14:14,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:14:14,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:14:14,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:14:14,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:14,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:14:14,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:14:14,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:14:14,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:14:14,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:14:14,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:14:14,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:14:14,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:14:14,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:14:14,148 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2024-11-08 15:14:14,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:14:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:14:14,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:14:14,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:14:14,414 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:14:14,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2024-11-08 15:14:15,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:14:16,114 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:14:16,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2024-11-08 15:14:16,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41df6c731/429a91b3378d4d66bcf6b72aa0699b42/FLAGf8d419333 [2024-11-08 15:14:16,155 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41df6c731/429a91b3378d4d66bcf6b72aa0699b42 [2024-11-08 15:14:16,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:14:16,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:14:16,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:16,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:14:16,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:14:16,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224871a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16, skipping insertion in model container [2024-11-08 15:14:16,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:14:16,603 WARN L250 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_spec2_product52.cil.c[19177,19190] [2024-11-08 15:14:16,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:16,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:14:16,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 15:14:16,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] [2024-11-08 15:14:16,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [354] [2024-11-08 15:14:16,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [455] [2024-11-08 15:14:16,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [495] [2024-11-08 15:14:16,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [530] [2024-11-08 15:14:16,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] [2024-11-08 15:14:16,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1000] [2024-11-08 15:14:16,719 WARN L250 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_spec2_product52.cil.c[19177,19190] [2024-11-08 15:14:16,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:16,747 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:14:16,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16 WrapperNode [2024-11-08 15:14:16,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:16,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:16,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:14:16,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:14:16,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,794 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 212 [2024-11-08 15:14:16,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:16,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:14:16,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:14:16,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:14:16,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,823 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:14:16,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:14:16,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:14:16,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:14:16,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:14:16,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (1/1) ... [2024-11-08 15:14:16,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:16,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:16,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:14:16,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:14:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:14:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:14:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:14:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:14:16,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:14:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:14:16,950 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:14:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:14:16,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:14:17,037 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:14:17,041 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:14:17,359 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 15:14:17,363 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:14:17,380 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:14:17,381 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:14:17,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:17 BoogieIcfgContainer [2024-11-08 15:14:17,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:14:17,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:14:17,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:14:17,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:14:17,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:14:16" (1/3) ... [2024-11-08 15:14:17,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84d4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:17, skipping insertion in model container [2024-11-08 15:14:17,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:16" (2/3) ... [2024-11-08 15:14:17,390 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a84d4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:17, skipping insertion in model container [2024-11-08 15:14:17,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:17" (3/3) ... [2024-11-08 15:14:17,391 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2024-11-08 15:14:17,407 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:14:17,408 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:14:17,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:14:17,490 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31fce515, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:14:17,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:14:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 15:14:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:14:17,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:17,505 INFO L215 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] [2024-11-08 15:14:17,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:17,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash -656399671, now seen corresponding path program 1 times [2024-11-08 15:14:17,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:17,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156828965] [2024-11-08 15:14:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:17,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:17,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 15:14:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:17,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:17,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156828965] [2024-11-08 15:14:17,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156828965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:17,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:17,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:14:17,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87547230] [2024-11-08 15:14:17,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:17,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:14:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:17,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:14:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:14:17,768 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) 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) [2024-11-08 15:14:17,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:17,802 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-08 15:14:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:14:17,806 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 [2024-11-08 15:14:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:17,815 INFO L225 Difference]: With dead ends: 183 [2024-11-08 15:14:17,815 INFO L226 Difference]: Without dead ends: 87 [2024-11-08 15:14:17,818 INFO L431 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 [2024-11-08 15:14:17,821 INFO L432 NwaCegarLoop]: 121 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, 121 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 [2024-11-08 15:14:17,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-08 15:14:17,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-08 15:14:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 15:14:17,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-08 15:14:17,861 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2024-11-08 15:14:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:17,862 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-08 15:14:17,862 INFO L472 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) [2024-11-08 15:14:17,862 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-08 15:14:17,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 15:14:17,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:17,865 INFO L215 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] [2024-11-08 15:14:17,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:14:17,866 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:17,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1991216904, now seen corresponding path program 1 times [2024-11-08 15:14:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:17,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589674381] [2024-11-08 15:14:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:17,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:14:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:18,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589674381] [2024-11-08 15:14:18,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589674381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:18,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:18,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778633322] [2024-11-08 15:14:18,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:18,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:18,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:18,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:18,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:18,016 INFO L87 Difference]: Start difference. First operand 87 states and 112 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) [2024-11-08 15:14:18,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:18,038 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2024-11-08 15:14:18,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:18,040 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 [2024-11-08 15:14:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:18,043 INFO L225 Difference]: With dead ends: 134 [2024-11-08 15:14:18,043 INFO L226 Difference]: Without dead ends: 78 [2024-11-08 15:14:18,044 INFO L431 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 [2024-11-08 15:14:18,046 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 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 [2024-11-08 15:14:18,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:18,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-08 15:14:18,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-08 15:14:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 15:14:18,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-08 15:14:18,059 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2024-11-08 15:14:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:18,059 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-08 15:14:18,059 INFO L472 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) [2024-11-08 15:14:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-08 15:14:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 15:14:18,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:18,061 INFO L215 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] [2024-11-08 15:14:18,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:14:18,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:18,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:18,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1985117727, now seen corresponding path program 1 times [2024-11-08 15:14:18,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:18,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590286116] [2024-11-08 15:14:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:18,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:18,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590286116] [2024-11-08 15:14:18,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590286116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:18,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:18,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:18,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857107118] [2024-11-08 15:14:18,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:18,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:18,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:18,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:18,179 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2024-11-08 15:14:18,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:18,232 INFO L93 Difference]: Finished difference Result 216 states and 283 transitions. [2024-11-08 15:14:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:18,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2024-11-08 15:14:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:18,236 INFO L225 Difference]: With dead ends: 216 [2024-11-08 15:14:18,237 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 15:14:18,237 INFO L431 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 [2024-11-08 15:14:18,239 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 92 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:18,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:18,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 15:14:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-08 15:14:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 123 states have internal predecessors, (147), 20 states have call successors, (20), 14 states have call predecessors, (20), 14 states have return successors, (20), 13 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 15:14:18,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 187 transitions. [2024-11-08 15:14:18,271 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 187 transitions. Word has length 31 [2024-11-08 15:14:18,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:18,271 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 187 transitions. [2024-11-08 15:14:18,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2024-11-08 15:14:18,271 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 187 transitions. [2024-11-08 15:14:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 15:14:18,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:18,275 INFO L215 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] [2024-11-08 15:14:18,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:14:18,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:18,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1980394589, now seen corresponding path program 1 times [2024-11-08 15:14:18,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:18,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099985460] [2024-11-08 15:14:18,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:18,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:14:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:18,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099985460] [2024-11-08 15:14:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099985460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:18,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:18,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:18,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345722577] [2024-11-08 15:14:18,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:18,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:18,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:18,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:18,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:18,444 INFO L87 Difference]: Start difference. First operand 143 states and 187 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-08 15:14:18,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:18,533 INFO L93 Difference]: Finished difference Result 361 states and 484 transitions. [2024-11-08 15:14:18,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:18,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 34 [2024-11-08 15:14:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:18,536 INFO L225 Difference]: With dead ends: 361 [2024-11-08 15:14:18,536 INFO L226 Difference]: Without dead ends: 226 [2024-11-08 15:14:18,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:18,542 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 69 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:18,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 353 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:18,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-08 15:14:18,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 225. [2024-11-08 15:14:18,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 170 states have (on average 1.3176470588235294) internal successors, (224), 185 states have internal predecessors, (224), 28 states have call successors, (28), 26 states have call predecessors, (28), 26 states have return successors, (36), 25 states have call predecessors, (36), 28 states have call successors, (36) [2024-11-08 15:14:18,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 288 transitions. [2024-11-08 15:14:18,580 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 288 transitions. Word has length 34 [2024-11-08 15:14:18,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:18,580 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 288 transitions. [2024-11-08 15:14:18,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-08 15:14:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 288 transitions. [2024-11-08 15:14:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 15:14:18,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:18,582 INFO L215 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] [2024-11-08 15:14:18,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:14:18,583 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:18,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash -316583003, now seen corresponding path program 1 times [2024-11-08 15:14:18,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:18,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734247736] [2024-11-08 15:14:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:18,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:14:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:18,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:18,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734247736] [2024-11-08 15:14:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734247736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:18,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:14:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541673969] [2024-11-08 15:14:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:18,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:18,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:14:18,726 INFO L87 Difference]: Start difference. First operand 225 states and 288 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:18,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:18,915 INFO L93 Difference]: Finished difference Result 496 states and 643 transitions. [2024-11-08 15:14:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:14:18,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-08 15:14:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:18,917 INFO L225 Difference]: With dead ends: 496 [2024-11-08 15:14:18,918 INFO L226 Difference]: Without dead ends: 279 [2024-11-08 15:14:18,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:14:18,922 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 53 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:18,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 361 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:18,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-08 15:14:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 277. [2024-11-08 15:14:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 212 states have (on average 1.2924528301886793) internal successors, (274), 227 states have internal predecessors, (274), 32 states have call successors, (32), 26 states have call predecessors, (32), 32 states have return successors, (46), 33 states have call predecessors, (46), 32 states have call successors, (46) [2024-11-08 15:14:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 352 transitions. [2024-11-08 15:14:18,949 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 352 transitions. Word has length 45 [2024-11-08 15:14:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:18,949 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 352 transitions. [2024-11-08 15:14:18,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:18,950 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 352 transitions. [2024-11-08 15:14:18,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 15:14:18,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:18,953 INFO L215 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] [2024-11-08 15:14:18,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:14:18,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:18,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:18,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2005526745, now seen corresponding path program 1 times [2024-11-08 15:14:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269481266] [2024-11-08 15:14:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:14:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:19,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:19,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269481266] [2024-11-08 15:14:19,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269481266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:19,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:19,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757611838] [2024-11-08 15:14:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:19,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:19,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:19,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:19,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:19,079 INFO L87 Difference]: Start difference. First operand 277 states and 352 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:19,223 INFO L93 Difference]: Finished difference Result 552 states and 719 transitions. [2024-11-08 15:14:19,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:19,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-08 15:14:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:19,226 INFO L225 Difference]: With dead ends: 552 [2024-11-08 15:14:19,227 INFO L226 Difference]: Without dead ends: 283 [2024-11-08 15:14:19,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:19,232 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:19,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 283 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:19,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-08 15:14:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2024-11-08 15:14:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 216 states have (on average 1.287037037037037) internal successors, (278), 231 states have internal predecessors, (278), 32 states have call successors, (32), 26 states have call predecessors, (32), 32 states have return successors, (46), 33 states have call predecessors, (46), 32 states have call successors, (46) [2024-11-08 15:14:19,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 356 transitions. [2024-11-08 15:14:19,280 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 356 transitions. Word has length 45 [2024-11-08 15:14:19,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:19,281 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 356 transitions. [2024-11-08 15:14:19,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 356 transitions. [2024-11-08 15:14:19,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 15:14:19,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:19,283 INFO L215 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] [2024-11-08 15:14:19,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:14:19,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:19,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1582824919, now seen corresponding path program 1 times [2024-11-08 15:14:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:19,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539795186] [2024-11-08 15:14:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:19,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 15:14:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:19,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539795186] [2024-11-08 15:14:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539795186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:19,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:19,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:19,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663421374] [2024-11-08 15:14:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:19,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:19,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:19,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:19,393 INFO L87 Difference]: Start difference. First operand 281 states and 356 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:19,628 INFO L93 Difference]: Finished difference Result 805 states and 1058 transitions. [2024-11-08 15:14:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:14:19,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-08 15:14:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:19,634 INFO L225 Difference]: With dead ends: 805 [2024-11-08 15:14:19,634 INFO L226 Difference]: Without dead ends: 532 [2024-11-08 15:14:19,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:19,636 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 215 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:19,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 305 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:14:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-11-08 15:14:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 525. [2024-11-08 15:14:19,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 400 states have (on average 1.2525) internal successors, (501), 424 states have internal predecessors, (501), 63 states have call successors, (63), 59 states have call predecessors, (63), 61 states have return successors, (101), 62 states have call predecessors, (101), 63 states have call successors, (101) [2024-11-08 15:14:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 665 transitions. [2024-11-08 15:14:19,683 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 665 transitions. Word has length 45 [2024-11-08 15:14:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:19,685 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 665 transitions. [2024-11-08 15:14:19,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 15:14:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 665 transitions. [2024-11-08 15:14:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 15:14:19,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:19,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:19,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:14:19,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:19,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash 929828559, now seen corresponding path program 1 times [2024-11-08 15:14:19,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:19,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590060905] [2024-11-08 15:14:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:19,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:14:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:14:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:19,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590060905] [2024-11-08 15:14:19,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590060905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:19,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:19,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:19,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159803970] [2024-11-08 15:14:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:19,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:19,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:19,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:19,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:19,784 INFO L87 Difference]: Start difference. First operand 525 states and 665 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 15:14:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:20,171 INFO L93 Difference]: Finished difference Result 1096 states and 1483 transitions. [2024-11-08 15:14:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:14:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-11-08 15:14:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:20,180 INFO L225 Difference]: With dead ends: 1096 [2024-11-08 15:14:20,181 INFO L226 Difference]: Without dead ends: 1094 [2024-11-08 15:14:20,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:14:20,182 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 307 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:20,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 224 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:14:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-08 15:14:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 972. [2024-11-08 15:14:20,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 741 states have (on average 1.263157894736842) internal successors, (936), 796 states have internal predecessors, (936), 122 states have call successors, (122), 92 states have call predecessors, (122), 108 states have return successors, (267), 114 states have call predecessors, (267), 122 states have call successors, (267) [2024-11-08 15:14:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1325 transitions. [2024-11-08 15:14:20,286 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1325 transitions. Word has length 49 [2024-11-08 15:14:20,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:20,286 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1325 transitions. [2024-11-08 15:14:20,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 15:14:20,287 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1325 transitions. [2024-11-08 15:14:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 15:14:20,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:20,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:20,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:14:20,292 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:20,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:20,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1745032408, now seen corresponding path program 1 times [2024-11-08 15:14:20,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:20,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356978060] [2024-11-08 15:14:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:20,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:14:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:14:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:14:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:14:20,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:20,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356978060] [2024-11-08 15:14:20,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356978060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:20,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:20,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:14:20,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916434614] [2024-11-08 15:14:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:20,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:14:20,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:14:20,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:20,408 INFO L87 Difference]: Start difference. First operand 972 states and 1325 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 15:14:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:20,758 INFO L93 Difference]: Finished difference Result 1592 states and 2158 transitions. [2024-11-08 15:14:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:14:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 79 [2024-11-08 15:14:20,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:20,763 INFO L225 Difference]: With dead ends: 1592 [2024-11-08 15:14:20,763 INFO L226 Difference]: Without dead ends: 628 [2024-11-08 15:14:20,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:14:20,767 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 231 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:20,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 360 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:14:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-08 15:14:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 584. [2024-11-08 15:14:20,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 449 states have (on average 1.247216035634744) internal successors, (560), 480 states have internal predecessors, (560), 69 states have call successors, (69), 56 states have call predecessors, (69), 65 states have return successors, (140), 68 states have call predecessors, (140), 69 states have call successors, (140) [2024-11-08 15:14:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 769 transitions. [2024-11-08 15:14:20,844 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 769 transitions. Word has length 79 [2024-11-08 15:14:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:20,845 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 769 transitions. [2024-11-08 15:14:20,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-08 15:14:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 769 transitions. [2024-11-08 15:14:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 15:14:20,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:20,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:20,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:14:20,847 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:20,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:20,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1198485224, now seen corresponding path program 1 times [2024-11-08 15:14:20,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:20,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267401935] [2024-11-08 15:14:20,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:20,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:20,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:14:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:20,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:14:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:14:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:14:21,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267401935] [2024-11-08 15:14:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267401935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370029861] [2024-11-08 15:14:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:21,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:21,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:21,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:21,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:14:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 15:14:21,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:21,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:21,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370029861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:21,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:14:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2024-11-08 15:14:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563996286] [2024-11-08 15:14:21,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:21,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:21,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:21,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:14:21,249 INFO L87 Difference]: Start difference. First operand 584 states and 769 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 15:14:21,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:21,314 INFO L93 Difference]: Finished difference Result 993 states and 1335 transitions. [2024-11-08 15:14:21,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:21,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2024-11-08 15:14:21,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:21,319 INFO L225 Difference]: With dead ends: 993 [2024-11-08 15:14:21,319 INFO L226 Difference]: Without dead ends: 501 [2024-11-08 15:14:21,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:14:21,324 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 42 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:21,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 209 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:21,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-08 15:14:21,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2024-11-08 15:14:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 385 states have (on average 1.225974025974026) internal successors, (472), 412 states have internal predecessors, (472), 59 states have call successors, (59), 51 states have call predecessors, (59), 56 states have return successors, (85), 58 states have call predecessors, (85), 59 states have call successors, (85) [2024-11-08 15:14:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 616 transitions. [2024-11-08 15:14:21,366 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 616 transitions. Word has length 88 [2024-11-08 15:14:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:21,366 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 616 transitions. [2024-11-08 15:14:21,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 15:14:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 616 transitions. [2024-11-08 15:14:21,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 15:14:21,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:21,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:21,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:14:21,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 15:14:21,574 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:21,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1221172747, now seen corresponding path program 1 times [2024-11-08 15:14:21,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:21,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715939307] [2024-11-08 15:14:21,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:21,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:14:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:14:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:14:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 15:14:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715939307] [2024-11-08 15:14:21,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715939307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:21,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837958696] [2024-11-08 15:14:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:21,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:21,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:21,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:14:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:21,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 15:14:21,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 15:14:21,875 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:21,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837958696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:21,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:14:21,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:14:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826987267] [2024-11-08 15:14:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:21,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:21,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:14:21,878 INFO L87 Difference]: Start difference. First operand 501 states and 616 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:14:21,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:21,924 INFO L93 Difference]: Finished difference Result 922 states and 1156 transitions. [2024-11-08 15:14:21,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:21,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2024-11-08 15:14:21,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:21,927 INFO L225 Difference]: With dead ends: 922 [2024-11-08 15:14:21,928 INFO L226 Difference]: Without dead ends: 513 [2024-11-08 15:14:21,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:14:21,929 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:21,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-08 15:14:21,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 507. [2024-11-08 15:14:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 391 states have (on average 1.2225063938618925) internal successors, (478), 418 states have internal predecessors, (478), 59 states have call successors, (59), 51 states have call predecessors, (59), 56 states have return successors, (85), 58 states have call predecessors, (85), 59 states have call successors, (85) [2024-11-08 15:14:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 622 transitions. [2024-11-08 15:14:21,963 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 622 transitions. Word has length 91 [2024-11-08 15:14:21,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:21,964 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 622 transitions. [2024-11-08 15:14:21,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:14:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 622 transitions. [2024-11-08 15:14:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 15:14:21,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:21,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:21,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:14:22,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 15:14:22,170 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:22,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:22,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1355186253, now seen corresponding path program 1 times [2024-11-08 15:14:22,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:22,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972553021] [2024-11-08 15:14:22,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:22,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:14:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:14:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:14:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:14:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,321 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 15:14:22,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:22,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972553021] [2024-11-08 15:14:22,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972553021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:22,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555529120] [2024-11-08 15:14:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:22,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:22,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:22,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:22,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:14:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:22,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 15:14:22,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 15:14:22,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:14:22,743 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 15:14:22,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555529120] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:22,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 15:14:22,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2024-11-08 15:14:22,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777885223] [2024-11-08 15:14:22,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:22,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:22,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:22,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:22,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-08 15:14:22,745 INFO L87 Difference]: Start difference. First operand 507 states and 622 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:14:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:22,873 INFO L93 Difference]: Finished difference Result 1439 states and 1810 transitions. [2024-11-08 15:14:22,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:14:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2024-11-08 15:14:22,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:22,878 INFO L225 Difference]: With dead ends: 1439 [2024-11-08 15:14:22,879 INFO L226 Difference]: Without dead ends: 940 [2024-11-08 15:14:22,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:14:22,881 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 57 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:22,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 448 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:22,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-08 15:14:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 888. [2024-11-08 15:14:22,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 676 states have (on average 1.1923076923076923) internal successors, (806), 726 states have internal predecessors, (806), 107 states have call successors, (107), 93 states have call predecessors, (107), 104 states have return successors, (156), 105 states have call predecessors, (156), 107 states have call successors, (156) [2024-11-08 15:14:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1069 transitions. [2024-11-08 15:14:22,936 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1069 transitions. Word has length 91 [2024-11-08 15:14:22,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:22,936 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1069 transitions. [2024-11-08 15:14:22,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 15:14:22,937 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1069 transitions. [2024-11-08 15:14:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 15:14:22,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:22,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:22,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 15:14:23,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:23,143 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:23,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:23,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1873795953, now seen corresponding path program 1 times [2024-11-08 15:14:23,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:23,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149309792] [2024-11-08 15:14:23,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:23,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:14:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:14:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 15:14:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:14:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:14:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 15:14:23,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:23,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149309792] [2024-11-08 15:14:23,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149309792] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:23,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358429417] [2024-11-08 15:14:23,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:23,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:23,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:23,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:23,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:14:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:23,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 15:14:23,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:23,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:23,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358429417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:23,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:14:23,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11 [2024-11-08 15:14:23,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782370551] [2024-11-08 15:14:23,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:23,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:23,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:23,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:23,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:14:23,585 INFO L87 Difference]: Start difference. First operand 888 states and 1069 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:14:23,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:23,709 INFO L93 Difference]: Finished difference Result 1478 states and 1798 transitions. [2024-11-08 15:14:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:14:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-11-08 15:14:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:23,713 INFO L225 Difference]: With dead ends: 1478 [2024-11-08 15:14:23,714 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:14:23,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 108 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:14:23,717 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 108 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:23,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 470 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:14:23,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:14:23,718 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) [2024-11-08 15:14:23,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:14:23,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-11-08 15:14:23,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:23,719 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:14:23,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 15:14:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:14:23,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:14:23,722 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:14:23,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:23,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:23,928 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:23,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:14:27,588 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:14:27,605 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|))) (or (and (<= 2 ~waterLevel~0) .cse0) (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) .cse0))) (not (= 0 ~systemActive~0))) Eliminated clause: (and (let ((.cse0 (<= 1 ~pumpRunning~0))) (or (and .cse0 (<= 2 ~waterLevel~0)) (and .cse0 (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)))) (not (= 0 ~systemActive~0))) [2024-11-08 15:14:27,630 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) Eliminated clause: (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse0 .cse1 .cse4 .cse2) (and .cse0 .cse1 .cse5 .cse3))) [2024-11-08 15:14:27,636 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.checkPermissibleVariables(FloydHoareUtils.java:204) at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 15:14:27,640 INFO L158 Benchmark]: Toolchain (without parser) took 11479.37ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 119.1MB in the beginning and 115.8MB in the end (delta: 3.3MB). Peak memory consumption was 129.8MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,640 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:14:27,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.24ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 142.6MB in the end (delta: -23.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.82ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,641 INFO L158 Benchmark]: Boogie Preprocessor took 52.58ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 138.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,641 INFO L158 Benchmark]: RCFGBuilder took 532.96ms. Allocated memory is still 180.4MB. Free memory was 138.3MB in the beginning and 119.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,641 INFO L158 Benchmark]: TraceAbstraction took 10254.69ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 118.3MB in the beginning and 115.8MB in the end (delta: 2.4MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. [2024-11-08 15:14:27,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 96.5MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.24ms. Allocated memory is still 180.4MB. Free memory was 119.1MB in the beginning and 142.6MB in the end (delta: -23.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.82ms. Allocated memory is still 180.4MB. Free memory was 142.6MB in the beginning and 140.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.58ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 138.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.96ms. Allocated memory is still 180.4MB. Free memory was 138.3MB in the beginning and 119.1MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10254.69ms. Allocated memory was 180.4MB in the beginning and 272.6MB in the end (delta: 92.3MB). Free memory was 118.3MB in the beginning and 115.8MB in the end (delta: 2.4MB). Peak memory consumption was 131.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 124]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] - GenericResultAtLocation [Line: 354]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [354] - GenericResultAtLocation [Line: 455]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [455] - GenericResultAtLocation [Line: 495]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [495] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [530] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] - GenericResultAtLocation [Line: 1000]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1000] * 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: 1005]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.5s, OverallIterations: 13, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1272 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1243 mSDsluCounter, 3895 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2514 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 872 IncrementalHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 1381 mSDtfsCounter, 872 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 555 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=8, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 239 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1109 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1182 ConstructedInterpolants, 0 QuantifiedInterpolants, 2089 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1249 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 18 InterpolantComputations, 13 PerfectInterpolantSequences, 274/290 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: 366]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) - InvariantResult [Line: 65]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 229]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 <= waterLevel)) || (((1 <= pumpRunning) && (1 == systemActive)) && (1 <= waterLevel))) && (0 != systemActive)) Ensures: ((((pumpRunning == 0) && (((2 <= waterLevel) && (1 <= \old(pumpRunning))) || (((1 == systemActive) && (1 <= waterLevel)) && (1 <= \old(pumpRunning))))) && (0 != systemActive)) && ((((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 162]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)) && (waterLevel == 1)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (2 <= waterLevel)) && (1 == systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ExceptionOrErrorResult: IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Variable |isMethaneLevelCritical_#res| not permitted in ensures for changeMethaneLevel: (let ((.cse0 (= ~methAndRunningLastTime~0 0))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~methaneLevelCritical~0 0)) (= |isMethaneLevelCritical_#res| 0) (not .cse0)) (let ((.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse3 (= ~waterLevel~0 1))) (or (and .cse1 .cse0 .cse2 .cse3) (and .cse1 .cse0 .cse4 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 .cse2) (and .cse1 .cse0 .cse4 .cse2) (and .cse1 .cse0 .cse5 .cse3))))): de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.checkPermissibleVariables(FloydHoareUtils.java:204) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-08 15:14:27,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec2_product52.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:14:29,862 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:14:29,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 15:14:29,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:14:29,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:14:29,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:14:29,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:14:29,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:14:29,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:14:29,986 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:14:29,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:14:29,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:14:29,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:14:29,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:14:29,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:14:29,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:14:29,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:14:29,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:14:29,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:14:29,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:14:29,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:14:29,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:14:29,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:14:29,994 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 15:14:29,994 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 15:14:29,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:14:29,995 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 15:14:29,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:14:29,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:14:29,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:14:29,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:14:29,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:14:29,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:14:29,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:14:29,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:29,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:14:29,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:14:29,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:14:29,998 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 15:14:29,998 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 15:14:29,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:14:29,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:14:29,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:14:30,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:14:30,000 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2024-11-08 15:14:30,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:14:30,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:14:30,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:14:30,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:14:30,360 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:14:30,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2024-11-08 15:14:31,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:14:32,152 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:14:32,159 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2024-11-08 15:14:32,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162a5fb80/f13ab5be174b4706a6a100e95c7b99c9/FLAG9874306de [2024-11-08 15:14:32,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162a5fb80/f13ab5be174b4706a6a100e95c7b99c9 [2024-11-08 15:14:32,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:14:32,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:14:32,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:32,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:14:32,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:14:32,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5bf91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32, skipping insertion in model container [2024-11-08 15:14:32,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:14:32,534 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,535 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,541 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,543 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,547 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,556 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,557 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,559 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,561 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 15:14:32,581 WARN L250 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_spec2_product52.cil.c[19177,19190] [2024-11-08 15:14:32,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:32,600 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:14:32,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-08 15:14:32,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] [2024-11-08 15:14:32,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [354] [2024-11-08 15:14:32,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [455] [2024-11-08 15:14:32,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [495] [2024-11-08 15:14:32,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [530] [2024-11-08 15:14:32,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] [2024-11-08 15:14:32,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1000] [2024-11-08 15:14:32,678 WARN L250 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_spec2_product52.cil.c[19177,19190] [2024-11-08 15:14:32,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:32,701 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:14:32,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32 WrapperNode [2024-11-08 15:14:32,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:32,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:32,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:14:32,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:14:32,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,763 INFO L138 Inliner]: procedures = 60, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 201 [2024-11-08 15:14:32,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:32,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:14:32,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:14:32,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:14:32,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:14:32,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:14:32,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:14:32,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:14:32,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:14:32,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (1/1) ... [2024-11-08 15:14:32,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:32,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:32,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:14:32,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:14:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:14:32,909 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:14:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:14:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 15:14:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 15:14:32,910 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:14:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:14:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:14:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:14:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:32,912 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:14:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:14:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 15:14:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:14:32,913 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:14:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:14:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:14:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:14:32,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:14:33,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:14:33,003 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:14:33,369 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 15:14:33,369 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:14:33,387 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:14:33,388 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:14:33,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:33 BoogieIcfgContainer [2024-11-08 15:14:33,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:14:33,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:14:33,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:14:33,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:14:33,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:14:32" (1/3) ... [2024-11-08 15:14:33,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2361ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:33, skipping insertion in model container [2024-11-08 15:14:33,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:32" (2/3) ... [2024-11-08 15:14:33,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2361ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:33, skipping insertion in model container [2024-11-08 15:14:33,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:33" (3/3) ... [2024-11-08 15:14:33,398 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2024-11-08 15:14:33,415 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:14:33,415 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:14:33,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:14:33,498 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@11500bb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:14:33,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:14:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 15:14:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:14:33,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:33,514 INFO L215 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] [2024-11-08 15:14:33,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:33,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:33,522 INFO L85 PathProgramCache]: Analyzing trace with hash -656399671, now seen corresponding path program 1 times [2024-11-08 15:14:33,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:33,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [148194323] [2024-11-08 15:14:33,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:33,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:33,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:33,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 15:14:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:14:33,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:33,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:33,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [148194323] [2024-11-08 15:14:33,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [148194323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:33,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:33,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:14:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699405439] [2024-11-08 15:14:33,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:33,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:14:33,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:33,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:14:33,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:14:33,704 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:33,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:33,739 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-08 15:14:33,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:14:33,743 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), 1 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 [2024-11-08 15:14:33,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:33,754 INFO L225 Difference]: With dead ends: 183 [2024-11-08 15:14:33,754 INFO L226 Difference]: Without dead ends: 87 [2024-11-08 15:14:33,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:14:33,769 INFO L432 NwaCegarLoop]: 121 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, 121 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 [2024-11-08 15:14:33,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:33,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-08 15:14:33,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-08 15:14:33,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 15:14:33,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-08 15:14:33,821 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2024-11-08 15:14:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:33,823 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-08 15:14:33,823 INFO L472 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-08 15:14:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 15:14:33,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:33,826 INFO L215 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] [2024-11-08 15:14:33,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 15:14:34,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:34,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:34,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1991216904, now seen corresponding path program 1 times [2024-11-08 15:14:34,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:34,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376652305] [2024-11-08 15:14:34,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:34,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:34,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:34,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 15:14:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:14:34,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:34,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:34,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:34,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376652305] [2024-11-08 15:14:34,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376652305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:34,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:34,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:34,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616356246] [2024-11-08 15:14:34,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:34,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:34,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:34,138 INFO L87 Difference]: Start difference. First operand 87 states and 112 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:34,160 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2024-11-08 15:14:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:34,161 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), 1 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 [2024-11-08 15:14:34,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:34,162 INFO L225 Difference]: With dead ends: 134 [2024-11-08 15:14:34,162 INFO L226 Difference]: Without dead ends: 78 [2024-11-08 15:14:34,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:34,164 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 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 [2024-11-08 15:14:34,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-08 15:14:34,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-08 15:14:34,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 15:14:34,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-08 15:14:34,177 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2024-11-08 15:14:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:34,178 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-08 15:14:34,178 INFO L472 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), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-08 15:14:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 15:14:34,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:34,180 INFO L215 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] [2024-11-08 15:14:34,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-08 15:14:34,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:34,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:34,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1985117727, now seen corresponding path program 1 times [2024-11-08 15:14:34,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:34,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22102100] [2024-11-08 15:14:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:34,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:34,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 15:14:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:14:34,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:34,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:34,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:34,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22102100] [2024-11-08 15:14:34,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22102100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:34,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:34,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318056012] [2024-11-08 15:14:34,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:34,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:34,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:34,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:34,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:34,478 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2024-11-08 15:14:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:34,518 INFO L93 Difference]: Finished difference Result 216 states and 283 transitions. [2024-11-08 15:14:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2024-11-08 15:14:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:34,521 INFO L225 Difference]: With dead ends: 216 [2024-11-08 15:14:34,521 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 15:14:34,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:34,523 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 92 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:34,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 204 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 15:14:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-08 15:14:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 123 states have internal predecessors, (147), 20 states have call successors, (20), 14 states have call predecessors, (20), 14 states have return successors, (20), 13 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 15:14:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 187 transitions. [2024-11-08 15:14:34,569 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 187 transitions. Word has length 31 [2024-11-08 15:14:34,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:34,570 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 187 transitions. [2024-11-08 15:14:34,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2024-11-08 15:14:34,570 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 187 transitions. [2024-11-08 15:14:34,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 15:14:34,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:34,572 INFO L215 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] [2024-11-08 15:14:34,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:34,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:34,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1980394589, now seen corresponding path program 1 times [2024-11-08 15:14:34,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:34,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73098796] [2024-11-08 15:14:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:34,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:34,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:34,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:34,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 15:14:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:14:34,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:34,960 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:34,960 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:34,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73098796] [2024-11-08 15:14:34,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73098796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:34,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:34,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:34,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033966893] [2024-11-08 15:14:34,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:34,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:14:34,962 INFO L87 Difference]: Start difference. First operand 143 states and 187 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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) [2024-11-08 15:14:35,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:35,131 INFO L93 Difference]: Finished difference Result 405 states and 540 transitions. [2024-11-08 15:14:35,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:14:35,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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 34 [2024-11-08 15:14:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:35,135 INFO L225 Difference]: With dead ends: 405 [2024-11-08 15:14:35,138 INFO L226 Difference]: Without dead ends: 270 [2024-11-08 15:14:35,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:14:35,140 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 63 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:35,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 454 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-08 15:14:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-08 15:14:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 201 states have (on average 1.3482587064676617) internal successors, (271), 230 states have internal predecessors, (271), 40 states have call successors, (40), 28 states have call predecessors, (40), 28 states have return successors, (42), 26 states have call predecessors, (42), 40 states have call successors, (42) [2024-11-08 15:14:35,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 353 transitions. [2024-11-08 15:14:35,189 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 353 transitions. Word has length 34 [2024-11-08 15:14:35,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:35,190 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 353 transitions. [2024-11-08 15:14:35,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 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) [2024-11-08 15:14:35,190 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 353 transitions. [2024-11-08 15:14:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 15:14:35,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:35,197 INFO L215 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] [2024-11-08 15:14:35,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 15:14:35,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:35,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:35,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:35,398 INFO L85 PathProgramCache]: Analyzing trace with hash -973115463, now seen corresponding path program 1 times [2024-11-08 15:14:35,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:35,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251271367] [2024-11-08 15:14:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:35,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:35,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:35,402 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:35,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-08 15:14:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:35,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 15:14:35,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:35,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:35,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:35,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251271367] [2024-11-08 15:14:35,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251271367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:35,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:35,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:14:35,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020184551] [2024-11-08 15:14:35,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:35,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:35,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:35,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:35,569 INFO L87 Difference]: Start difference. First operand 270 states and 353 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:14:35,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:35,666 INFO L93 Difference]: Finished difference Result 694 states and 926 transitions. [2024-11-08 15:14:35,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:35,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 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 38 [2024-11-08 15:14:35,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:35,684 INFO L225 Difference]: With dead ends: 694 [2024-11-08 15:14:35,684 INFO L226 Difference]: Without dead ends: 432 [2024-11-08 15:14:35,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:35,686 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 42 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:35,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 353 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-08 15:14:35,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 430. [2024-11-08 15:14:35,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 321 states have (on average 1.2990654205607477) internal successors, (417), 350 states have internal predecessors, (417), 56 states have call successors, (56), 52 states have call predecessors, (56), 52 states have return successors, (76), 50 states have call predecessors, (76), 56 states have call successors, (76) [2024-11-08 15:14:35,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 549 transitions. [2024-11-08 15:14:35,746 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 549 transitions. Word has length 38 [2024-11-08 15:14:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:35,746 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 549 transitions. [2024-11-08 15:14:35,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:14:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 549 transitions. [2024-11-08 15:14:35,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 15:14:35,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:35,749 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:35,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-08 15:14:35,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:35,952 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:35,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:35,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1523834569, now seen corresponding path program 1 times [2024-11-08 15:14:35,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:35,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375516594] [2024-11-08 15:14:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:35,953 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:35,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:35,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:35,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 15:14:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:36,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 15:14:36,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:36,031 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:36,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:36,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375516594] [2024-11-08 15:14:36,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375516594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164001367] [2024-11-08 15:14:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:36,033 INFO L87 Difference]: Start difference. First operand 430 states and 549 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:36,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:36,090 INFO L93 Difference]: Finished difference Result 864 states and 1122 transitions. [2024-11-08 15:14:36,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:36,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2024-11-08 15:14:36,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:36,095 INFO L225 Difference]: With dead ends: 864 [2024-11-08 15:14:36,095 INFO L226 Difference]: Without dead ends: 442 [2024-11-08 15:14:36,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:36,097 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:36,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:36,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-08 15:14:36,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-11-08 15:14:36,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 333 states have (on average 1.2882882882882882) internal successors, (429), 362 states have internal predecessors, (429), 56 states have call successors, (56), 52 states have call predecessors, (56), 52 states have return successors, (76), 50 states have call predecessors, (76), 56 states have call successors, (76) [2024-11-08 15:14:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 561 transitions. [2024-11-08 15:14:36,147 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 561 transitions. Word has length 49 [2024-11-08 15:14:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:36,147 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 561 transitions. [2024-11-08 15:14:36,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 561 transitions. [2024-11-08 15:14:36,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 15:14:36,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:36,149 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:36,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:36,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:36,353 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:36,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:36,353 INFO L85 PathProgramCache]: Analyzing trace with hash -165109173, now seen corresponding path program 1 times [2024-11-08 15:14:36,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:36,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1353694620] [2024-11-08 15:14:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:36,354 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:36,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:36,357 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:36,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-08 15:14:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:36,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 15:14:36,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:36,442 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:36,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:36,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1353694620] [2024-11-08 15:14:36,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1353694620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:36,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:36,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:14:36,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125476346] [2024-11-08 15:14:36,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:36,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:14:36,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:36,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:14:36,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:14:36,445 INFO L87 Difference]: Start difference. First operand 442 states and 561 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:36,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:36,503 INFO L93 Difference]: Finished difference Result 884 states and 1158 transitions. [2024-11-08 15:14:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 15:14:36,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2024-11-08 15:14:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:36,507 INFO L225 Difference]: With dead ends: 884 [2024-11-08 15:14:36,507 INFO L226 Difference]: Without dead ends: 450 [2024-11-08 15:14:36,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:14:36,513 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:36,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:36,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-08 15:14:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-08 15:14:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 341 states have (on average 1.281524926686217) internal successors, (437), 370 states have internal predecessors, (437), 56 states have call successors, (56), 52 states have call predecessors, (56), 52 states have return successors, (76), 50 states have call predecessors, (76), 56 states have call successors, (76) [2024-11-08 15:14:36,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 569 transitions. [2024-11-08 15:14:36,555 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 569 transitions. Word has length 49 [2024-11-08 15:14:36,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:36,556 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 569 transitions. [2024-11-08 15:14:36,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:36,556 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 569 transitions. [2024-11-08 15:14:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 15:14:36,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:36,558 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:36,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-08 15:14:36,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:36,759 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:36,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash 257592653, now seen corresponding path program 1 times [2024-11-08 15:14:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968317979] [2024-11-08 15:14:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:36,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:36,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:36,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:36,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-08 15:14:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:36,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 15:14:36,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:36,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:36,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:36,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:36,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968317979] [2024-11-08 15:14:36,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968317979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:36,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:36,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:14:36,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471632824] [2024-11-08 15:14:36,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:36,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:36,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:36,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:36,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:36,884 INFO L87 Difference]: Start difference. First operand 450 states and 569 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:36,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:36,951 INFO L93 Difference]: Finished difference Result 1080 states and 1374 transitions. [2024-11-08 15:14:36,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:36,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2024-11-08 15:14:36,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:36,956 INFO L225 Difference]: With dead ends: 1080 [2024-11-08 15:14:36,957 INFO L226 Difference]: Without dead ends: 638 [2024-11-08 15:14:36,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:36,960 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 36 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:36,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 183 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-08 15:14:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2024-11-08 15:14:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 485 states have (on average 1.243298969072165) internal successors, (603), 518 states have internal predecessors, (603), 80 states have call successors, (80), 76 states have call predecessors, (80), 72 states have return successors, (102), 70 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-08 15:14:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 785 transitions. [2024-11-08 15:14:37,023 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 785 transitions. Word has length 49 [2024-11-08 15:14:37,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:37,024 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 785 transitions. [2024-11-08 15:14:37,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:14:37,024 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 785 transitions. [2024-11-08 15:14:37,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 15:14:37,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:37,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:37,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:37,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:37,229 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:37,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -715401485, now seen corresponding path program 1 times [2024-11-08 15:14:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745589233] [2024-11-08 15:14:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:37,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:37,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:37,233 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:37,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-08 15:14:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:37,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 15:14:37,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:37,379 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:37,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745589233] [2024-11-08 15:14:37,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745589233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:37,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159249832] [2024-11-08 15:14:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:37,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:37,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:37,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:37,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:37,382 INFO L87 Difference]: Start difference. First operand 638 states and 785 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 15:14:37,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:37,454 INFO L93 Difference]: Finished difference Result 962 states and 1205 transitions. [2024-11-08 15:14:37,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:37,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2024-11-08 15:14:37,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:37,462 INFO L225 Difference]: With dead ends: 962 [2024-11-08 15:14:37,462 INFO L226 Difference]: Without dead ends: 960 [2024-11-08 15:14:37,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:37,463 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 50 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:37,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 187 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-08 15:14:37,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 803. [2024-11-08 15:14:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 609 states have (on average 1.2561576354679802) internal successors, (765), 656 states have internal predecessors, (765), 101 states have call successors, (101), 95 states have call predecessors, (101), 92 states have return successors, (139), 85 states have call predecessors, (139), 101 states have call successors, (139) [2024-11-08 15:14:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1005 transitions. [2024-11-08 15:14:37,550 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1005 transitions. Word has length 53 [2024-11-08 15:14:37,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:37,550 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1005 transitions. [2024-11-08 15:14:37,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 15:14:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1005 transitions. [2024-11-08 15:14:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 15:14:37,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:37,554 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:37,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:37,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:37,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:37,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:37,758 INFO L85 PathProgramCache]: Analyzing trace with hash 115410428, now seen corresponding path program 1 times [2024-11-08 15:14:37,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:37,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87034192] [2024-11-08 15:14:37,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:37,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:37,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:37,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:37,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-08 15:14:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:37,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:14:37,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:37,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:37,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:37,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87034192] [2024-11-08 15:14:37,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87034192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533550630] [2024-11-08 15:14:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:37,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:37,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:37,903 INFO L87 Difference]: Start difference. First operand 803 states and 1005 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 15:14:37,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:37,991 INFO L93 Difference]: Finished difference Result 1727 states and 2182 transitions. [2024-11-08 15:14:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:37,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 83 [2024-11-08 15:14:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:37,997 INFO L225 Difference]: With dead ends: 1727 [2024-11-08 15:14:37,997 INFO L226 Difference]: Without dead ends: 932 [2024-11-08 15:14:37,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:38,000 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 54 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:38,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 153 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-08 15:14:38,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 924. [2024-11-08 15:14:38,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 700 states have (on average 1.25) internal successors, (875), 753 states have internal predecessors, (875), 117 states have call successors, (117), 111 states have call predecessors, (117), 106 states have return successors, (165), 99 states have call predecessors, (165), 117 states have call successors, (165) [2024-11-08 15:14:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1157 transitions. [2024-11-08 15:14:38,102 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1157 transitions. Word has length 83 [2024-11-08 15:14:38,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:38,104 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1157 transitions. [2024-11-08 15:14:38,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 15:14:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1157 transitions. [2024-11-08 15:14:38,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 15:14:38,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:38,108 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:38,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:38,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:38,312 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:38,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:38,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1895528892, now seen corresponding path program 1 times [2024-11-08 15:14:38,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:38,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912727996] [2024-11-08 15:14:38,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:38,313 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:38,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:38,314 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:38,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-08 15:14:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:38,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 15:14:38,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:38,431 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:38,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:38,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912727996] [2024-11-08 15:14:38,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912727996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:38,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:38,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684073475] [2024-11-08 15:14:38,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:38,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:38,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:38,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:38,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:38,433 INFO L87 Difference]: Start difference. First operand 924 states and 1157 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 15:14:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:38,530 INFO L93 Difference]: Finished difference Result 1571 states and 2012 transitions. [2024-11-08 15:14:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:38,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 92 [2024-11-08 15:14:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:38,537 INFO L225 Difference]: With dead ends: 1571 [2024-11-08 15:14:38,538 INFO L226 Difference]: Without dead ends: 901 [2024-11-08 15:14:38,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:38,541 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 42 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:38,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 208 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:38,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-11-08 15:14:38,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2024-11-08 15:14:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 681 states have (on average 1.2173274596182084) internal successors, (829), 731 states have internal predecessors, (829), 115 states have call successors, (115), 109 states have call predecessors, (115), 104 states have return successors, (156), 98 states have call predecessors, (156), 115 states have call successors, (156) [2024-11-08 15:14:38,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1100 transitions. [2024-11-08 15:14:38,621 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1100 transitions. Word has length 92 [2024-11-08 15:14:38,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:38,622 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1100 transitions. [2024-11-08 15:14:38,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-08 15:14:38,622 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1100 transitions. [2024-11-08 15:14:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 15:14:38,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:38,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:38,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-08 15:14:38,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:38,826 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:38,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:38,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1739782447, now seen corresponding path program 1 times [2024-11-08 15:14:38,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:38,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026967904] [2024-11-08 15:14:38,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:38,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:38,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:38,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:38,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-08 15:14:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:38,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 15:14:38,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 15:14:38,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:38,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:38,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026967904] [2024-11-08 15:14:38,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026967904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:38,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:38,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:38,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911157295] [2024-11-08 15:14:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:38,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:38,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:38,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:38,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:38,931 INFO L87 Difference]: Start difference. First operand 901 states and 1100 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:14:39,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:39,013 INFO L93 Difference]: Finished difference Result 1566 states and 1937 transitions. [2024-11-08 15:14:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:39,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 95 [2024-11-08 15:14:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:39,019 INFO L225 Difference]: With dead ends: 1566 [2024-11-08 15:14:39,019 INFO L226 Difference]: Without dead ends: 919 [2024-11-08 15:14:39,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:39,021 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:39,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-08 15:14:39,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2024-11-08 15:14:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 699 states have (on average 1.21173104434907) internal successors, (847), 749 states have internal predecessors, (847), 115 states have call successors, (115), 109 states have call predecessors, (115), 104 states have return successors, (156), 98 states have call predecessors, (156), 115 states have call successors, (156) [2024-11-08 15:14:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1118 transitions. [2024-11-08 15:14:39,098 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1118 transitions. Word has length 95 [2024-11-08 15:14:39,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:39,098 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1118 transitions. [2024-11-08 15:14:39,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:14:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1118 transitions. [2024-11-08 15:14:39,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 15:14:39,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:39,103 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:39,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:39,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:39,304 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:39,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:39,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1873795953, now seen corresponding path program 1 times [2024-11-08 15:14:39,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:39,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193430449] [2024-11-08 15:14:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:39,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:39,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:39,306 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:39,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-08 15:14:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:39,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 15:14:39,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 15:14:39,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:14:39,806 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 15:14:39,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:39,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193430449] [2024-11-08 15:14:39,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193430449] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:14:39,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 15:14:39,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2024-11-08 15:14:39,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850888452] [2024-11-08 15:14:39,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 15:14:39,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 15:14:39,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:39,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 15:14:39,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 15:14:39,808 INFO L87 Difference]: Start difference. First operand 919 states and 1118 transitions. Second operand has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-08 15:14:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:40,247 INFO L93 Difference]: Finished difference Result 1819 states and 2262 transitions. [2024-11-08 15:14:40,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:14:40,248 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) Word has length 95 [2024-11-08 15:14:40,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:40,254 INFO L225 Difference]: With dead ends: 1819 [2024-11-08 15:14:40,255 INFO L226 Difference]: Without dead ends: 1154 [2024-11-08 15:14:40,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:14:40,257 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 326 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:40,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 489 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 15:14:40,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-11-08 15:14:40,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1096. [2024-11-08 15:14:40,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 837 states have (on average 1.1720430107526882) internal successors, (981), 889 states have internal predecessors, (981), 125 states have call successors, (125), 121 states have call predecessors, (125), 133 states have return successors, (161), 124 states have call predecessors, (161), 125 states have call successors, (161) [2024-11-08 15:14:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1267 transitions. [2024-11-08 15:14:40,358 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1267 transitions. Word has length 95 [2024-11-08 15:14:40,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:40,358 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1267 transitions. [2024-11-08 15:14:40,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.153846153846153) internal successors, (119), 12 states have internal predecessors, (119), 8 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (16), 6 states have call predecessors, (16), 8 states have call successors, (16) [2024-11-08 15:14:40,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1267 transitions. [2024-11-08 15:14:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 15:14:40,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:40,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:40,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-08 15:14:40,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:40,562 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:40,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:40,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1059470649, now seen corresponding path program 1 times [2024-11-08 15:14:40,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 15:14:40,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588727027] [2024-11-08 15:14:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:40,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:40,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 15:14:40,565 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 15:14:40,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-08 15:14:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:40,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:14:40,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:40,638 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 15:14:40,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:40,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 15:14:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588727027] [2024-11-08 15:14:40,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588727027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:40,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:40,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:40,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078369433] [2024-11-08 15:14:40,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:40,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:40,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 15:14:40,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:40,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:40,640 INFO L87 Difference]: Start difference. First operand 1096 states and 1267 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:14:40,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:40,710 INFO L93 Difference]: Finished difference Result 1747 states and 2028 transitions. [2024-11-08 15:14:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:40,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2024-11-08 15:14:40,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:40,713 INFO L225 Difference]: With dead ends: 1747 [2024-11-08 15:14:40,713 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:14:40,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:40,717 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 37 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:40,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 198 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:14:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:14:40,718 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) [2024-11-08 15:14:40,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:14:40,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2024-11-08 15:14:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:40,720 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:14:40,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 15:14:40,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:14:40,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:14:40,722 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:14:40,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:40,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 15:14:40,925 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:40,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:14:45,132 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:14:45,149 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (let ((.cse0 (= (_ bv1 32) |old(~pumpRunning~0)|))) (or (and (= ~waterLevel~0 (_ bv1 32)) .cse0 (= (_ bv1 32) ~systemActive~0)) (and .cse0 (= ~waterLevel~0 (_ bv2 32)) (not (= (_ bv0 32) ~systemActive~0))))) (= (_ bv1 32) ~pumpRunning~0)) Eliminated clause: (and (or (and (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) ~systemActive~0)) (and (= ~waterLevel~0 (_ bv2 32)) (not (= (_ bv0 32) ~systemActive~0)))) (= (_ bv1 32) ~pumpRunning~0)) [2024-11-08 15:14:45,181 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= ~methAndRunningLastTime~0 (_ bv0 32)))) (and (or (not .cse0) (not (= (_ bv0 32) |old(~methaneLevelCritical~0)|)) (= ~methaneLevelCritical~0 (_ bv0 32))) (let ((.cse1 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~systemActive~0)) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= (_ bv1 32) ~systemActive~0))) (or (and .cse1 .cse2 .cse0 .cse3) (and .cse1 .cse2 .cse4 .cse0) (and .cse2 .cse4 .cse5 .cse0) (and .cse5 (= (_ bv1 32) ~pumpRunning~0) .cse3) (and .cse2 .cse5 .cse0 .cse3))))) Eliminated clause: (let ((.cse0 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~systemActive~0)) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2) (and .cse1 .cse4 .cse5 .cse2) (and .cse5 (= (_ bv1 32) ~pumpRunning~0) .cse3) (and .cse1 .cse5 .cse2 .cse3))) [2024-11-08 15:14:45,228 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse11 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse13 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse12 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse10 (= (_ bv0 32) ~systemActive~0))) (let ((.cse2 (not .cse10)) (.cse0 (not .cse12)) (.cse6 (not .cse13)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (not .cse11)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse8 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse9 (= (_ bv1 32) |old(~pumpRunning~0)|)) (.cse7 (= (_ bv1 32) ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or (and .cse3 .cse4) .cse5 .cse2) (or (and (= ~waterLevel~0 (_ bv1 32)) .cse3) .cse6) (or .cse0 .cse6 .cse1) (or (and .cse3 .cse4 .cse1) (not .cse7) (not .cse8) .cse5) (or (and .cse4 (= (_ bv1 32) ~pumpRunning~0)) (not .cse9)) (or (and .cse10 .cse8 .cse11) (and .cse12 .cse8 .cse13 .cse7) (and .cse10 .cse8 .cse13 (= ~methaneLevelCritical~0 (_ bv0 32))) (and .cse12 .cse8 .cse11 .cse7) (and .cse12 .cse10 .cse8 .cse13) (and .cse9 .cse11 .cse7))))) Eliminated clause: (exists ((|old(~waterLevel~0)| (_ BitVec 32)) (|old(~methAndRunningLastTime~0)| (_ BitVec 32)) (|old(~pumpRunning~0)| (_ BitVec 32))) (let ((.cse11 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse13 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse12 (= (_ bv0 32) |old(~methAndRunningLastTime~0)|)) (.cse10 (= (_ bv0 32) ~systemActive~0))) (let ((.cse2 (not .cse10)) (.cse0 (not .cse12)) (.cse6 (not .cse13)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (not .cse11)) (.cse4 (= ~waterLevel~0 (_ bv2 32))) (.cse8 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse9 (= (_ bv1 32) |old(~pumpRunning~0)|)) (.cse7 (= (_ bv1 32) ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or (and .cse3 .cse4) .cse5 .cse2) (or (and (= ~waterLevel~0 (_ bv1 32)) .cse3) .cse6) (or .cse0 .cse6 .cse1) (or (and .cse3 .cse4 .cse1) (not .cse7) (not .cse8) .cse5) (or (and .cse4 (= (_ bv1 32) ~pumpRunning~0)) (not .cse9)) (or (and .cse10 .cse8 .cse11) (and .cse12 .cse8 .cse13 .cse7) (and .cse10 .cse8 .cse13 (= ~methaneLevelCritical~0 (_ bv0 32))) (and .cse12 .cse8 .cse11 .cse7) (and .cse12 .cse10 .cse8 .cse13) (and .cse9 .cse11 .cse7)))))) [2024-11-08 15:14:45,256 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:14:45,268 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= (_ bv0 32) ~pumpRunning~0) (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= (_ bv0 32) |old(~pumpRunning~0)|)) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse3) (and .cse5 .cse0 .cse4 .cse3) (and .cse5 .cse0 .cse2 .cse3)))) Eliminated clause: (and (= (_ bv0 32) ~pumpRunning~0) (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse0 .cse4 .cse2)))) [2024-11-08 15:14:45,288 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse0 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse1 (= (_ bv2 32) |old(~waterLevel~0)|))) (and (or (= ~waterLevel~0 (_ bv1 32)) (not .cse0)) (let ((.cse5 (= (_ bv0 32) ~systemActive~0)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse3 .cse0 .cse4 .cse2) (and .cse3 .cse5 .cse0 .cse4) (and .cse3 .cse5 .cse4 .cse1) (and .cse3 .cse4 .cse1 .cse2))) (or (= ~waterLevel~0 (_ bv2 32)) (not .cse1)))) Eliminated clause: (exists ((|old(~waterLevel~0)| (_ BitVec 32))) (let ((.cse0 (= (_ bv1 32) |old(~waterLevel~0)|)) (.cse1 (= (_ bv2 32) |old(~waterLevel~0)|))) (and (or (= ~waterLevel~0 (_ bv1 32)) (not .cse0)) (let ((.cse5 (= (_ bv0 32) ~systemActive~0)) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~systemActive~0))) (or (and (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse3 .cse0 .cse4 .cse2) (and .cse3 .cse5 .cse0 .cse4) (and .cse3 .cse5 .cse4 .cse1) (and .cse3 .cse4 .cse1 .cse2))) (or (= ~waterLevel~0 (_ bv2 32)) (not .cse1))))) [2024-11-08 15:14:45,297 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:14:45,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:14:45 BoogieIcfgContainer [2024-11-08 15:14:45,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:14:45,299 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:14:45,302 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:14:45,303 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:14:45,303 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:33" (3/4) ... [2024-11-08 15:14:45,306 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:14:45,309 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 15:14:45,309 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:14:45,309 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:14:45,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-08 15:14:45,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:14:45,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:14:45,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:45,311 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:14:45,316 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 15:14:45,318 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:14:45,318 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:14:45,319 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:14:45,319 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:14:45,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:14:45,425 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:14:45,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:14:45,426 INFO L158 Benchmark]: Toolchain (without parser) took 13227.70ms. Allocated memory was 67.1MB in the beginning and 211.8MB in the end (delta: 144.7MB). Free memory was 35.5MB in the beginning and 139.3MB in the end (delta: -103.7MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,428 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 50.3MB. Free memory was 25.6MB in the beginning and 25.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:14:45,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.68ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 30.1MB in the end (delta: 5.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.07ms. Allocated memory is still 67.1MB. Free memory was 29.8MB in the beginning and 45.4MB in the end (delta: -15.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,429 INFO L158 Benchmark]: Boogie Preprocessor took 67.71ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 43.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,430 INFO L158 Benchmark]: RCFGBuilder took 554.05ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 43.0MB in the beginning and 56.5MB in the end (delta: -13.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,430 INFO L158 Benchmark]: TraceAbstraction took 11907.71ms. Allocated memory was 83.9MB in the beginning and 211.8MB in the end (delta: 127.9MB). Free memory was 55.7MB in the beginning and 147.7MB in the end (delta: -91.9MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,430 INFO L158 Benchmark]: Witness Printer took 126.73ms. Allocated memory is still 211.8MB. Free memory was 147.7MB in the beginning and 139.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:14:45,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 50.3MB. Free memory was 25.6MB in the beginning and 25.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.68ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 30.1MB in the end (delta: 5.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.07ms. Allocated memory is still 67.1MB. Free memory was 29.8MB in the beginning and 45.4MB in the end (delta: -15.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.71ms. Allocated memory is still 67.1MB. Free memory was 45.4MB in the beginning and 43.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.05ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 43.0MB in the beginning and 56.5MB in the end (delta: -13.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11907.71ms. Allocated memory was 83.9MB in the beginning and 211.8MB in the end (delta: 127.9MB). Free memory was 55.7MB in the beginning and 147.7MB in the end (delta: -91.9MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB. * Witness Printer took 126.73ms. Allocated memory is still 211.8MB. Free memory was 147.7MB in the beginning and 139.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 124]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [124] - GenericResultAtLocation [Line: 354]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [354] - GenericResultAtLocation [Line: 455]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [455] - GenericResultAtLocation [Line: 495]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [495] - GenericResultAtLocation [Line: 530]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [530] - GenericResultAtLocation [Line: 634]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [634] - GenericResultAtLocation [Line: 1000]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1000] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 1005]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 768 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 759 mSDsluCounter, 3777 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2295 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 1482 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 909 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1096occurred in iteration=13, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 228 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 818 NumberOfCodeBlocks, 818 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 898 ConstructedInterpolants, 0 QuantifiedInterpolants, 1745 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1818 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 164/177 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: 366]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((((((waterLevel == 2) && (1 == pumpRunning)) && (0 == splverifierCounter)) && (1 == systemActive)) || (((((0 == pumpRunning) && (0 == systemActive)) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (0 == splverifierCounter))) || (((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (0 == splverifierCounter)) && (1 == systemActive))) || (((((waterLevel == 1) && (0 == pumpRunning)) && (0 == systemActive)) && (methAndRunningLastTime == 0)) && (0 == splverifierCounter))) || (((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (0 == splverifierCounter)) && (1 == systemActive))) - InvariantResult [Line: 65]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 229]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((waterLevel == 1) && (1 == systemActive)) || ((waterLevel == 2) && (0 != systemActive))) && (1 == pumpRunning)) Ensures: (((0 == pumpRunning) && ((((waterLevel == 1) && (1 == \old(pumpRunning))) && (1 == systemActive)) || (((1 == \old(pumpRunning)) && (waterLevel == 2)) && (0 != systemActive)))) && ((((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 162]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((((waterLevel == 1) && (0 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((((waterLevel == 1) && (0 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 558]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (0 == systemActive)) && (methAndRunningLastTime == 0))) || ((((0 == pumpRunning) && (0 == systemActive)) && (waterLevel == 2)) && (methAndRunningLastTime == 0))) || (((waterLevel == 2) && (1 == pumpRunning)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) Ensures: (((((((((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || ((((waterLevel == 1) && (0 == pumpRunning)) && (0 == systemActive)) && (methAndRunningLastTime == 0))) || ((((0 == pumpRunning) && (0 == systemActive)) && (waterLevel == 2)) && (methAndRunningLastTime == 0))) || (((waterLevel == 2) && (1 == pumpRunning)) && (1 == systemActive))) || ((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (head == \old(head)))) - ProcedureContractResult [Line: 570]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((((waterLevel == 1) && (0 == pumpRunning)) && (0 == systemActive)) || (((0 == pumpRunning) && (waterLevel == 2)) && (1 == systemActive))) || (((waterLevel == 1) && (0 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == pumpRunning)) && (1 == systemActive))) || (((0 == pumpRunning) && (0 == systemActive)) && (waterLevel == 2))) || ((((waterLevel == 2) && (1 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: ((((((((((waterLevel == 1) && (0 == pumpRunning)) && (0 == systemActive)) || (((0 == pumpRunning) && (waterLevel == 2)) && (1 == systemActive))) || (((waterLevel == 1) && (0 == pumpRunning)) && (1 == systemActive))) || ((((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == pumpRunning)) && (1 == systemActive))) || (((0 == pumpRunning) && (0 == systemActive)) && (waterLevel == 2))) || ((((waterLevel == 2) && (1 == pumpRunning)) && (methaneLevelCritical == 0)) && (1 == systemActive))) && ((methaneLevelCritical != 0) || (0 == \result))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 356]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 138]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((1 != \old(waterLevel)) || (((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0))) && ((methaneLevelCritical != 0) || (methAndRunningLastTime == 0))) && (((((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) || (2 != \old(waterLevel))) || (0 != systemActive))) && ((1 != \old(pumpRunning)) || (((waterLevel == 1) && (0 == pumpRunning)) && (methAndRunningLastTime == 0)))) && (((((waterLevel == 2) && (1 == pumpRunning)) || (((0 == pumpRunning) && (waterLevel == 2)) && (methAndRunningLastTime == 0))) || (0 != \old(pumpRunning))) || (2 != \old(waterLevel)))) && ((((((((0 == systemActive) && (0 == \old(pumpRunning))) && (2 == \old(waterLevel))) || ((((0 == \old(methAndRunningLastTime)) && (0 == \old(pumpRunning))) && (1 == \old(waterLevel))) && (1 == systemActive))) || ((((0 == systemActive) && (0 == \old(pumpRunning))) && (1 == \old(waterLevel))) && (methaneLevelCritical == 0))) || ((((0 == \old(methAndRunningLastTime)) && (0 == \old(pumpRunning))) && (2 == \old(waterLevel))) && (1 == systemActive))) || ((((0 == \old(methAndRunningLastTime)) && (0 == systemActive)) && (0 == \old(pumpRunning))) && (1 == \old(waterLevel)))) || (((1 == \old(pumpRunning)) && (2 == \old(waterLevel))) && (1 == systemActive)))) && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 170]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((0 == pumpRunning) && ((((((waterLevel == 1) && (methaneLevelCritical == 0)) && (1 == systemActive)) || (((waterLevel == 2) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((waterLevel == 2) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || (((waterLevel == 1) && (methAndRunningLastTime == 0)) && (1 == systemActive)))) Ensures: ((((((((((0 == \old(pumpRunning)) && (waterLevel == 2)) && (methAndRunningLastTime == 0)) && (1 == systemActive)) || ((((0 == \old(pumpRunning)) && (waterLevel == 2)) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((waterLevel == 1) && (0 == \old(pumpRunning))) && (methaneLevelCritical == 0)) && (1 == systemActive))) || ((((waterLevel == 1) && (0 == \old(pumpRunning))) && (methAndRunningLastTime == 0)) && (1 == systemActive))) && ((0 == pumpRunning) || (waterLevel != 1))) && ((0 == pumpRunning) || (1 == pumpRunning))) && ((((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 546]: Procedure Contract for waterRise Derived contract for procedure waterRise. Ensures: (((waterLevel == 2) && (((((((1 == pumpRunning) && (2 == \old(waterLevel))) && (1 == systemActive)) || ((((0 == pumpRunning) && (1 == \old(waterLevel))) && (methAndRunningLastTime == 0)) && (1 == systemActive))) || ((((0 == pumpRunning) && (0 == systemActive)) && (1 == \old(waterLevel))) && (methAndRunningLastTime == 0))) || ((((0 == pumpRunning) && (0 == systemActive)) && (methAndRunningLastTime == 0)) && (2 == \old(waterLevel)))) || ((((0 == pumpRunning) && (methAndRunningLastTime == 0)) && (2 == \old(waterLevel))) && (1 == systemActive)))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:14:45,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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