./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product48.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 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:08:17,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:08:17,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:08:17,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:08:17,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:08:17,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:08:17,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:08:17,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:08:17,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:08:17,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:08:17,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:08:17,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:08:17,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:08:17,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:08:17,568 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:08:17,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:08:17,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:08:17,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:08:17,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:08:17,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:08:17,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:08:17,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:08:17,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:08:17,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:08:17,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:08:17,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:08:17,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:08:17,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:08:17,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:08:17,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:08:17,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:08:17,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:08:17,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:08:17,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:08:17,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:08:17,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:08:17,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:08:17,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:08:17,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:08:17,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:08:17,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:08:17,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:08:17,576 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 [2024-10-14 03:08:17,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:08:17,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:08:17,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:08:17,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:08:17,831 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:08:17,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2024-10-14 03:08:19,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:08:19,322 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:08:19,323 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2024-10-14 03:08:19,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d949c26a1/fe4a6a2bc08244769e3b6c3cb61bc983/FLAG4d1a41782 [2024-10-14 03:08:19,672 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d949c26a1/fe4a6a2bc08244769e3b6c3cb61bc983 [2024-10-14 03:08:19,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:08:19,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:08:19,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:08:19,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:08:19,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:08:19,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:08:19" (1/1) ... [2024-10-14 03:08:19,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30294bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:19, skipping insertion in model container [2024-10-14 03:08:19,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:08:19" (1/1) ... [2024-10-14 03:08:19,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:08:19,946 WARN L248 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_product48.cil.c[17766,17779] [2024-10-14 03:08:19,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:08:19,971 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:08:19,978 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [150] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] [2024-10-14 03:08:19,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] [2024-10-14 03:08:19,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] [2024-10-14 03:08:20,049 WARN L248 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_product48.cil.c[17766,17779] [2024-10-14 03:08:20,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:08:20,069 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:08:20,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20 WrapperNode [2024-10-14 03:08:20,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:08:20,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:08:20,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:08:20,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:08:20,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,088 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,111 INFO L138 Inliner]: procedures = 57, calls = 103, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 199 [2024-10-14 03:08:20,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:08:20,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:08:20,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:08:20,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:08:20,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,158 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]. [2024-10-14 03:08:20,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:08:20,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:08:20,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:08:20,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:08:20,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (1/1) ... [2024-10-14 03:08:20,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:08:20,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:20,223 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) [2024-10-14 03:08:20,226 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 [2024-10-14 03:08:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:08:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-14 03:08:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-14 03:08:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 03:08:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 03:08:20,268 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 03:08:20,268 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 03:08:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-14 03:08:20,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-14 03:08:20,269 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-14 03:08:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-14 03:08:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:08:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:08:20,270 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-14 03:08:20,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-14 03:08:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-14 03:08:20,271 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-14 03:08:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:08:20,271 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-14 03:08:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-14 03:08:20,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:08:20,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:08:20,338 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:08:20,340 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:08:20,554 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-14 03:08:20,554 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:08:20,611 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:08:20,612 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 03:08:20,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:20 BoogieIcfgContainer [2024-10-14 03:08:20,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:08:20,613 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:08:20,614 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:08:20,617 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:08:20,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:08:19" (1/3) ... [2024-10-14 03:08:20,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242c3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:08:20, skipping insertion in model container [2024-10-14 03:08:20,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:08:20" (2/3) ... [2024-10-14 03:08:20,618 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5242c3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:08:20, skipping insertion in model container [2024-10-14 03:08:20,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:20" (3/3) ... [2024-10-14 03:08:20,619 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2024-10-14 03:08:20,636 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:08:20,636 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:08:20,703 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:08:20,710 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;@51d0e38d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:08:20,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:08:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 03:08:20,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 03:08:20,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:20,724 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:20,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:20,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1092678025, now seen corresponding path program 1 times [2024-10-14 03:08:20,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459051287] [2024-10-14 03:08:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:20,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:20,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 03:08:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:20,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:20,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459051287] [2024-10-14 03:08:20,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459051287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:20,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:20,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:08:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376925668] [2024-10-14 03:08:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:20,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:08:20,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:20,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:08:20,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:08:20,937 INFO L87 Difference]: Start difference. First operand has 82 states, 55 states have (on average 1.509090909090909) internal successors, (83), 64 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-10-14 03:08:20,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:21,000 INFO L93 Difference]: Finished difference Result 162 states and 231 transitions. [2024-10-14 03:08:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:08:21,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 17 [2024-10-14 03:08:21,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:21,012 INFO L225 Difference]: With dead ends: 162 [2024-10-14 03:08:21,013 INFO L226 Difference]: Without dead ends: 77 [2024-10-14 03:08:21,016 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 [2024-10-14 03:08:21,020 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:21,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-14 03:08:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-14 03:08:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 60 states have internal predecessors, (73), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:08:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 104 transitions. [2024-10-14 03:08:21,062 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 104 transitions. Word has length 17 [2024-10-14 03:08:21,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:21,063 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 104 transitions. [2024-10-14 03:08:21,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-10-14 03:08:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2024-10-14 03:08:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 03:08:21,066 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:21,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:21,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:08:21,067 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:21,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1910496021, now seen corresponding path program 1 times [2024-10-14 03:08:21,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074664106] [2024-10-14 03:08:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:21,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 03:08:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:21,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:21,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074664106] [2024-10-14 03:08:21,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074664106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:21,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:21,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:08:21,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728067363] [2024-10-14 03:08:21,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:21,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:21,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:21,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:21,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:21,169 INFO L87 Difference]: Start difference. First operand 77 states and 104 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 03:08:21,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:21,202 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2024-10-14 03:08:21,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:21,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2024-10-14 03:08:21,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:21,204 INFO L225 Difference]: With dead ends: 124 [2024-10-14 03:08:21,204 INFO L226 Difference]: Without dead ends: 69 [2024-10-14 03:08:21,204 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 [2024-10-14 03:08:21,205 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:21,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 146 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:21,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-14 03:08:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2024-10-14 03:08:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 55 states have internal predecessors, (67), 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) [2024-10-14 03:08:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 93 transitions. [2024-10-14 03:08:21,213 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 93 transitions. Word has length 18 [2024-10-14 03:08:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:21,214 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 93 transitions. [2024-10-14 03:08:21,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-14 03:08:21,214 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 93 transitions. [2024-10-14 03:08:21,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 03:08:21,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:21,215 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] [2024-10-14 03:08:21,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:08:21,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:21,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:21,216 INFO L85 PathProgramCache]: Analyzing trace with hash -241123912, now seen corresponding path program 1 times [2024-10-14 03:08:21,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:21,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942652467] [2024-10-14 03:08:21,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:21,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:21,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:21,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942652467] [2024-10-14 03:08:21,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942652467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:21,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:21,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:08:21,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68701030] [2024-10-14 03:08:21,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:21,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:21,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:21,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:21,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:08:21,287 INFO L87 Difference]: Start difference. First operand 69 states and 93 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-14 03:08:21,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:21,342 INFO L93 Difference]: Finished difference Result 203 states and 276 transitions. [2024-10-14 03:08:21,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:21,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 21 [2024-10-14 03:08:21,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:21,348 INFO L225 Difference]: With dead ends: 203 [2024-10-14 03:08:21,348 INFO L226 Difference]: Without dead ends: 136 [2024-10-14 03:08:21,349 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 [2024-10-14 03:08:21,349 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 87 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:21,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 174 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-10-14 03:08:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2024-10-14 03:08:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 90 states have (on average 1.4333333333333333) internal successors, (129), 105 states have internal predecessors, (129), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 03:08:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 181 transitions. [2024-10-14 03:08:21,372 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 181 transitions. Word has length 21 [2024-10-14 03:08:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:21,372 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 181 transitions. [2024-10-14 03:08:21,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-10-14 03:08:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 181 transitions. [2024-10-14 03:08:21,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 03:08:21,374 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:21,374 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] [2024-10-14 03:08:21,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:08:21,374 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:21,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:21,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1369567555, now seen corresponding path program 1 times [2024-10-14 03:08:21,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:21,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235554463] [2024-10-14 03:08:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:21,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 03:08:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:08:21,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:21,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235554463] [2024-10-14 03:08:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235554463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:21,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:21,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 03:08:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517685490] [2024-10-14 03:08:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:21,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 03:08:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 03:08:21,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 03:08:21,495 INFO L87 Difference]: Start difference. First operand 133 states and 181 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:21,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:21,604 INFO L93 Difference]: Finished difference Result 348 states and 479 transitions. [2024-10-14 03:08:21,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 03:08:21,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-14 03:08:21,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:21,608 INFO L225 Difference]: With dead ends: 348 [2024-10-14 03:08:21,608 INFO L226 Difference]: Without dead ends: 217 [2024-10-14 03:08:21,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:21,613 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 53 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:21,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 209 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:21,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-14 03:08:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2024-10-14 03:08:21,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 166 states have internal predecessors, (203), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-10-14 03:08:21,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2024-10-14 03:08:21,650 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 283 transitions. Word has length 24 [2024-10-14 03:08:21,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:21,651 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 283 transitions. [2024-10-14 03:08:21,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:08:21,651 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 283 transitions. [2024-10-14 03:08:21,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 03:08:21,652 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:21,652 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:08:21,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:08:21,653 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:21,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:21,653 INFO L85 PathProgramCache]: Analyzing trace with hash -938034873, now seen corresponding path program 1 times [2024-10-14 03:08:21,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:21,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023057548] [2024-10-14 03:08:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:21,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:08:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:21,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:21,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023057548] [2024-10-14 03:08:21,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023057548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:21,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:21,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:21,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028637594] [2024-10-14 03:08:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:21,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:21,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:21,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:21,782 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:21,951 INFO L93 Difference]: Finished difference Result 474 states and 637 transitions. [2024-10-14 03:08:21,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:08:21,952 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-14 03:08:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:21,954 INFO L225 Difference]: With dead ends: 474 [2024-10-14 03:08:21,956 INFO L226 Difference]: Without dead ends: 260 [2024-10-14 03:08:21,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:08:21,962 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 51 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:21,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 197 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:21,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-14 03:08:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2024-10-14 03:08:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 181 states have (on average 1.3425414364640884) internal successors, (243), 198 states have internal predecessors, (243), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-14 03:08:21,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 337 transitions. [2024-10-14 03:08:21,999 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 337 transitions. Word has length 43 [2024-10-14 03:08:22,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:22,000 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 337 transitions. [2024-10-14 03:08:22,003 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 337 transitions. [2024-10-14 03:08:22,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 03:08:22,005 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:22,005 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:08:22,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:08:22,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:22,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash -797486263, now seen corresponding path program 1 times [2024-10-14 03:08:22,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:22,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869025150] [2024-10-14 03:08:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:08:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869025150] [2024-10-14 03:08:22,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869025150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:22,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:08:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908720232] [2024-10-14 03:08:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:22,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:08:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:22,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:08:22,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:08:22,108 INFO L87 Difference]: Start difference. First operand 258 states and 337 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:22,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:22,334 INFO L93 Difference]: Finished difference Result 526 states and 699 transitions. [2024-10-14 03:08:22,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:08:22,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-14 03:08:22,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:22,337 INFO L225 Difference]: With dead ends: 526 [2024-10-14 03:08:22,337 INFO L226 Difference]: Without dead ends: 270 [2024-10-14 03:08:22,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:08:22,343 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 166 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:22,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 289 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:08:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-10-14 03:08:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 262. [2024-10-14 03:08:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 185 states have (on average 1.335135135135135) internal successors, (247), 202 states have internal predecessors, (247), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-14 03:08:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 341 transitions. [2024-10-14 03:08:22,371 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 341 transitions. Word has length 43 [2024-10-14 03:08:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:22,372 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 341 transitions. [2024-10-14 03:08:22,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:08:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 341 transitions. [2024-10-14 03:08:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 03:08:22,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:22,375 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:08:22,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:08:22,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1125741771, now seen corresponding path program 1 times [2024-10-14 03:08:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:22,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722409193] [2024-10-14 03:08:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:08:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:22,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722409193] [2024-10-14 03:08:22,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722409193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:22,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:22,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:22,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169332336] [2024-10-14 03:08:22,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:22,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:22,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:22,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:22,459 INFO L87 Difference]: Start difference. First operand 262 states and 341 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 03:08:22,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:22,674 INFO L93 Difference]: Finished difference Result 742 states and 1003 transitions. [2024-10-14 03:08:22,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:08:22,675 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), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-10-14 03:08:22,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:22,677 INFO L225 Difference]: With dead ends: 742 [2024-10-14 03:08:22,678 INFO L226 Difference]: Without dead ends: 482 [2024-10-14 03:08:22,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:08:22,681 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 198 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:22,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 209 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:08:22,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-10-14 03:08:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2024-10-14 03:08:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 339 states have (on average 1.2979351032448379) internal successors, (440), 365 states have internal predecessors, (440), 71 states have call successors, (71), 63 states have call predecessors, (71), 65 states have return successors, (109), 70 states have call predecessors, (109), 71 states have call successors, (109) [2024-10-14 03:08:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 620 transitions. [2024-10-14 03:08:22,720 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 620 transitions. Word has length 43 [2024-10-14 03:08:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:22,721 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 620 transitions. [2024-10-14 03:08:22,721 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), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 03:08:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 620 transitions. [2024-10-14 03:08:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 03:08:22,723 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:22,724 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:08:22,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:08:22,724 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash 990963685, now seen corresponding path program 1 times [2024-10-14 03:08:22,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604393699] [2024-10-14 03:08:22,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:22,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:08:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 03:08:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:22,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:08:22,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:22,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604393699] [2024-10-14 03:08:22,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604393699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:22,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:08:22,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:08:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260409066] [2024-10-14 03:08:22,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:22,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:08:22,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:08:22,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:08:22,808 INFO L87 Difference]: Start difference. First operand 476 states and 620 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:08:23,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:23,126 INFO L93 Difference]: Finished difference Result 986 states and 1381 transitions. [2024-10-14 03:08:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:08:23,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-10-14 03:08:23,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:23,131 INFO L225 Difference]: With dead ends: 986 [2024-10-14 03:08:23,131 INFO L226 Difference]: Without dead ends: 984 [2024-10-14 03:08:23,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:08:23,133 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 282 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:23,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 145 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:08:23,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-10-14 03:08:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 898. [2024-10-14 03:08:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 633 states have (on average 1.30173775671406) internal successors, (824), 692 states have internal predecessors, (824), 146 states have call successors, (146), 102 states have call predecessors, (146), 118 states have return successors, (291), 138 states have call predecessors, (291), 146 states have call successors, (291) [2024-10-14 03:08:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1261 transitions. [2024-10-14 03:08:23,212 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1261 transitions. Word has length 47 [2024-10-14 03:08:23,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:23,213 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1261 transitions. [2024-10-14 03:08:23,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:08:23,213 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1261 transitions. [2024-10-14 03:08:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 03:08:23,217 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:23,217 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-14 03:08:23,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:08:23,217 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:23,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1881726052, now seen corresponding path program 1 times [2024-10-14 03:08:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:23,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949203265] [2024-10-14 03:08:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:23,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 03:08:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 03:08:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:08:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,450 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 03:08:23,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:23,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949203265] [2024-10-14 03:08:23,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949203265] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:23,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694560781] [2024-10-14 03:08:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:23,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:23,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:23,453 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) [2024-10-14 03:08:23,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:08:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:08:23,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 03:08:23,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:23,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694560781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:23,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:23,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 14 [2024-10-14 03:08:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153878061] [2024-10-14 03:08:23,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:23,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:08:23,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:08:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:08:23,547 INFO L87 Difference]: Start difference. First operand 898 states and 1261 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 03:08:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:23,634 INFO L93 Difference]: Finished difference Result 1453 states and 2032 transitions. [2024-10-14 03:08:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:08:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2024-10-14 03:08:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:23,639 INFO L225 Difference]: With dead ends: 1453 [2024-10-14 03:08:23,639 INFO L226 Difference]: Without dead ends: 557 [2024-10-14 03:08:23,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:08:23,644 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 33 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:23,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 181 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:08:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-14 03:08:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 529. [2024-10-14 03:08:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 377 states have (on average 1.2891246684350133) internal successors, (486), 410 states have internal predecessors, (486), 81 states have call successors, (81), 61 states have call predecessors, (81), 70 states have return successors, (152), 80 states have call predecessors, (152), 81 states have call successors, (152) [2024-10-14 03:08:23,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 719 transitions. [2024-10-14 03:08:23,695 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 719 transitions. Word has length 73 [2024-10-14 03:08:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:23,695 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 719 transitions. [2024-10-14 03:08:23,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 03:08:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 719 transitions. [2024-10-14 03:08:23,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-14 03:08:23,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:23,698 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-10-14 03:08:23,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 03:08:23,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:23,900 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:23,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:23,900 INFO L85 PathProgramCache]: Analyzing trace with hash 755791790, now seen corresponding path program 1 times [2024-10-14 03:08:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:23,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600262] [2024-10-14 03:08:23,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:23,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:23,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:23,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 03:08:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:08:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:08:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:08:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 03:08:24,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:24,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600262] [2024-10-14 03:08:24,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600262] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:24,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994051591] [2024-10-14 03:08:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:24,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:24,206 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) [2024-10-14 03:08:24,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:08:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:24,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 03:08:24,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-14 03:08:24,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:08:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 03:08:24,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994051591] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:24,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 03:08:24,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 5] total 15 [2024-10-14 03:08:24,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356087294] [2024-10-14 03:08:24,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:24,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:08:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:24,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:08:24,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:08:24,512 INFO L87 Difference]: Start difference. First operand 529 states and 719 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 03:08:24,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:24,677 INFO L93 Difference]: Finished difference Result 1526 states and 2136 transitions. [2024-10-14 03:08:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:08:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-10-14 03:08:24,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:24,683 INFO L225 Difference]: With dead ends: 1526 [2024-10-14 03:08:24,684 INFO L226 Difference]: Without dead ends: 999 [2024-10-14 03:08:24,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:08:24,686 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 60 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:24,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 364 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:24,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-10-14 03:08:24,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 886. [2024-10-14 03:08:24,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 626 states have (on average 1.2523961661341854) internal successors, (784), 684 states have internal predecessors, (784), 137 states have call successors, (137), 105 states have call predecessors, (137), 122 states have return successors, (248), 136 states have call predecessors, (248), 137 states have call successors, (248) [2024-10-14 03:08:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1169 transitions. [2024-10-14 03:08:24,740 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1169 transitions. Word has length 88 [2024-10-14 03:08:24,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:24,741 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1169 transitions. [2024-10-14 03:08:24,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-14 03:08:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1169 transitions. [2024-10-14 03:08:24,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-14 03:08:24,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:24,744 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-10-14 03:08:24,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 03:08:24,945 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,SelfDestructingSolverStorable9 [2024-10-14 03:08:24,945 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:24,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:24,945 INFO L85 PathProgramCache]: Analyzing trace with hash 805021234, now seen corresponding path program 1 times [2024-10-14 03:08:24,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:24,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023882605] [2024-10-14 03:08:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:24,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:08:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:08:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 03:08:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:08:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:08:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:08:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 03:08:25,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:25,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023882605] [2024-10-14 03:08:25,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023882605] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:25,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618093057] [2024-10-14 03:08:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:25,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:25,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:25,266 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) [2024-10-14 03:08:25,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:08:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:25,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:08:25,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:25,490 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 03:08:25,490 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:25,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618093057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:25,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:25,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2024-10-14 03:08:25,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325413051] [2024-10-14 03:08:25,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:25,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:08:25,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:25,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:08:25,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:08:25,493 INFO L87 Difference]: Start difference. First operand 886 states and 1169 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-14 03:08:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:25,690 INFO L93 Difference]: Finished difference Result 1710 states and 2268 transitions. [2024-10-14 03:08:25,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:08:25,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2024-10-14 03:08:25,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:25,695 INFO L225 Difference]: With dead ends: 1710 [2024-10-14 03:08:25,695 INFO L226 Difference]: Without dead ends: 826 [2024-10-14 03:08:25,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:08:25,698 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 62 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:25,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 834 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:25,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-10-14 03:08:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 818. [2024-10-14 03:08:25,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 578 states have (on average 1.231833910034602) internal successors, (712), 630 states have internal predecessors, (712), 129 states have call successors, (129), 99 states have call predecessors, (129), 110 states have return successors, (200), 124 states have call predecessors, (200), 129 states have call successors, (200) [2024-10-14 03:08:25,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1041 transitions. [2024-10-14 03:08:25,765 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1041 transitions. Word has length 92 [2024-10-14 03:08:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:25,765 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1041 transitions. [2024-10-14 03:08:25,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-14 03:08:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1041 transitions. [2024-10-14 03:08:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-14 03:08:25,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:08:25,769 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 03:08:25,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 03:08:25,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:25,970 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:08:25,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:08:25,970 INFO L85 PathProgramCache]: Analyzing trace with hash -967324697, now seen corresponding path program 1 times [2024-10-14 03:08:25,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:08:25,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078030362] [2024-10-14 03:08:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:25,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:08:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:08:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:08:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:08:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 03:08:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 03:08:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 03:08:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:08:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:08:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 03:08:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:08:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:08:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:08:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:08:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 03:08:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 53 proven. 7 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-14 03:08:26,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:08:26,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078030362] [2024-10-14 03:08:26,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078030362] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:08:26,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490198664] [2024-10-14 03:08:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:08:26,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:08:26,212 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) [2024-10-14 03:08:26,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 03:08:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:08:26,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:08:26,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:08:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:08:26,411 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:08:26,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490198664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:08:26,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:08:26,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2024-10-14 03:08:26,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11121115] [2024-10-14 03:08:26,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:08:26,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:08:26,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:08:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:08:26,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:08:26,416 INFO L87 Difference]: Start difference. First operand 818 states and 1041 transitions. Second operand has 8 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-14 03:08:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:08:26,610 INFO L93 Difference]: Finished difference Result 1321 states and 1692 transitions. [2024-10-14 03:08:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:08:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2024-10-14 03:08:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:08:26,612 INFO L225 Difference]: With dead ends: 1321 [2024-10-14 03:08:26,612 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 03:08:26,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:08:26,616 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 58 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:08:26,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 652 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:08:26,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 03:08:26,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 03:08:26,617 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) [2024-10-14 03:08:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 03:08:26,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 131 [2024-10-14 03:08:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:08:26,619 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 03:08:26,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (16), 3 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-10-14 03:08:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 03:08:26,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 03:08:26,621 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 03:08:26,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 03:08:26,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:08:26,824 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:08:26,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 03:08:30,360 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 03:08:30,380 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= 2 ~waterLevel~0))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse2 .cse3) (and .cse0 .cse3)))) Eliminated clause: (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse3 (<= 2 ~waterLevel~0))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse2 .cse3) (and .cse0 .cse3))) [2024-10-14 03:08:30,394 WARN L155 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse3 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse4 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse5 .cse3) (and .cse0 .cse1 .cse5 .cse4))) (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (or (not .cse2) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse3 (= 0 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 |old(~methaneLevelCritical~0)|)) (.cse4 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse5 .cse3) (and .cse0 .cse1 .cse5 .cse4))) (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse2) (= ~methaneLevelCritical~0 0))))) [2024-10-14 03:08:30,401 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:08:30,411 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse7 (= 1 ~systemActive~0)) (.cse8 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse0 (not .cse8)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse4 (not .cse7)) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) (not .cse2)) (or (not .cse3) .cse0 .cse1 .cse4) (= |old(~waterLevel~0)| ~waterLevel~0) (or .cse1 .cse4 (< ~methaneLevelCritical~0 1)) (let ((.cse6 (= ~methaneLevelCritical~0 0)) (.cse5 (<= 1 ~methaneLevelCritical~0))) (or (and .cse5 .cse3 .cse2) (and .cse6 .cse7) (and .cse6 .cse3 .cse2) (and .cse5 .cse8 .cse7)))))) Eliminated clause: (let ((.cse6 (= 1 ~systemActive~0))) (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (not .cse6))) (and (or .cse0 .cse1 (< ~methaneLevelCritical~0 1)) (exists ((|old(~methAndRunningLastTime~0)| Int)) (let ((.cse8 (= |old(~methAndRunningLastTime~0)| 0))) (let ((.cse2 (not .cse8)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse2 .cse0 (not .cse3)) (or .cse2 .cse0 (not .cse4) .cse1) (let ((.cse5 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~methaneLevelCritical~0))) (or (and .cse4 .cse5 .cse3) (and .cse5 .cse6) (and .cse4 .cse7 .cse3) (and .cse7 .cse8 .cse6)))))))))) [2024-10-14 03:08:30,416 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:08:30,432 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse5 .cse4) (and .cse1 .cse5 .cse3))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse2 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= 0 ~systemActive~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse4) (and .cse0 .cse1 .cse5 .cse4) (and .cse1 .cse5 .cse3))) [2024-10-14 03:08:30,437 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~methAndRunningLastTime~0 0) (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-14 03:08:30,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:08:30 BoogieIcfgContainer [2024-10-14 03:08:30,445 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 03:08:30,445 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 03:08:30,445 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 03:08:30,446 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 03:08:30,446 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:08:20" (3/4) ... [2024-10-14 03:08:30,448 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 03:08:30,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-14 03:08:30,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:08:30,452 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-14 03:08:30,460 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-10-14 03:08:30,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-14 03:08:30,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 03:08:30,461 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:08:30,462 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:08:30,557 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 03:08:30,558 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 03:08:30,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 03:08:30,560 INFO L158 Benchmark]: Toolchain (without parser) took 10882.69ms. Allocated memory was 125.8MB in the beginning and 268.4MB in the end (delta: 142.6MB). Free memory was 74.0MB in the beginning and 104.7MB in the end (delta: -30.7MB). Peak memory consumption was 116.5MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,560 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 03:08:30,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.17ms. Allocated memory is still 125.8MB. Free memory was 74.0MB in the beginning and 53.4MB in the end (delta: 20.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.43ms. Allocated memory is still 125.8MB. Free memory was 53.4MB in the beginning and 51.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,561 INFO L158 Benchmark]: Boogie Preprocessor took 56.77ms. Allocated memory is still 125.8MB. Free memory was 51.0MB in the beginning and 97.6MB in the end (delta: -46.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,562 INFO L158 Benchmark]: RCFGBuilder took 442.40ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 97.6MB in the beginning and 132.6MB in the end (delta: -35.0MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,563 INFO L158 Benchmark]: TraceAbstraction took 9831.50ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 131.5MB in the beginning and 112.1MB in the end (delta: 19.5MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,563 INFO L158 Benchmark]: Witness Printer took 112.39ms. Allocated memory is still 268.4MB. Free memory was 112.1MB in the beginning and 104.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 03:08:30,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.17ms. Allocated memory is still 125.8MB. Free memory was 74.0MB in the beginning and 53.4MB in the end (delta: 20.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.43ms. Allocated memory is still 125.8MB. Free memory was 53.4MB in the beginning and 51.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.77ms. Allocated memory is still 125.8MB. Free memory was 51.0MB in the beginning and 97.6MB in the end (delta: -46.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 442.40ms. Allocated memory was 125.8MB in the beginning and 182.5MB in the end (delta: 56.6MB). Free memory was 97.6MB in the beginning and 132.6MB in the end (delta: -35.0MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9831.50ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 131.5MB in the beginning and 112.1MB in the end (delta: 19.5MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. * Witness Printer took 112.39ms. Allocated memory is still 268.4MB. Free memory was 112.1MB in the beginning and 104.7MB in the end (delta: 7.4MB). 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [150] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [188] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [261] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [484] - GenericResultAtLocation [Line: 524]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [524] - GenericResultAtLocation [Line: 890]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [890] - GenericResultAtLocation [Line: 899]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [899] - 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: 895]: 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 10 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1064 mSDsluCounter, 3495 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2395 mSDsCounter, 281 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1459 IncrementalHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 281 mSolverCounterUnsat, 1100 mSDtfsCounter, 1459 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 710 GetRequests, 611 SyntacticMatches, 1 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=898occurred in iteration=8, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 255 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1024 NumberOfCodeBlocks, 1024 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1095 ConstructedInterpolants, 0 QuantifiedInterpolants, 1968 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1312 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 447/474 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: 202]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 == systemActive))) - ProcedureContractResult [Line: 378]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || ((methaneLevelCritical == 0) && (2 <= waterLevel))) || ((1 <= methaneLevelCritical) && (2 <= waterLevel))) Ensures: ((pumpRunning == 0) && (((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || ((methaneLevelCritical == 0) && (2 <= waterLevel))) || ((1 <= methaneLevelCritical) && (2 <= waterLevel)))) - ProcedureContractResult [Line: 294]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) - ProcedureContractResult [Line: 83]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\old(methaneLevelCritical) == 0)) && (0 == systemActive)) || (((methAndRunningLastTime == 0) && (\old(methaneLevelCritical) == 0)) && (1 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) - ProcedureContractResult [Line: 901]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 270]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((methAndRunningLastTime == 0) || (1 != systemActive)) || (methaneLevelCritical < 1)) Ensures: (((((((\old(pumpRunning) != 0) || (\old(methAndRunningLastTime) != 0)) || (\old(waterLevel) == waterLevel)) && ((((pumpRunning == \old(pumpRunning)) && (methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0) && (2 <= waterLevel))) || (((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 == systemActive)))) && (((1 != systemActive) || (methaneLevelCritical < 1)) || ((pumpRunning == 0) && (methAndRunningLastTime == 0)))) && (((pumpRunning == 0) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && ((((((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((methaneLevelCritical == 0) && (\old(pumpRunning) == 0)) && (0 == systemActive))) || (((1 <= methaneLevelCritical) && (\old(methAndRunningLastTime) == 0)) && (1 == systemActive)))) - ProcedureContractResult [Line: 95]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((methaneLevelCritical <= \result) && (((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (0 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)))) && ((methaneLevelCritical != 0) || (\result == 0))) - ProcedureContractResult [Line: 71]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) Ensures: (((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (0 == systemActive))) || ((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (0 == systemActive))) || (((methAndRunningLastTime == 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 302]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((pumpRunning == \old(pumpRunning)) || ((methaneLevelCritical == 0) && (2 <= waterLevel))) && (((methaneLevelCritical == 0) && (1 == systemActive)) || ((((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (\old(pumpRunning) == 0)))) - ProcedureContractResult [Line: 386]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((methAndRunningLastTime == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1))) RESULT: Ultimate proved your program to be correct! [2024-10-14 03:08:30,591 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