./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1 --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 190527f0b5c755657048457e241e1db06174c0bd15c9c37dddb3c55b0e7d73ce --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:13:54,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:13:55,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:13:55,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:13:55,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:13:55,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:13:55,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:13:55,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:13:55,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:13:55,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:13:55,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:13:55,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:13:55,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:13:55,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:13:55,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:13:55,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:55,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:13:55,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:55,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:13:55,057 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1 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 -> 190527f0b5c755657048457e241e1db06174c0bd15c9c37dddb3c55b0e7d73ce [2024-12-02 11:13:55,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:13:55,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:13:55,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:13:55,255 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:13:55,255 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:13:55,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2024-12-02 11:13:57,863 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/data/7ae0ccc33/f219e06cf92e42c0a86743e2ce711eb5/FLAG4fbeac06a [2024-12-02 11:13:58,078 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:13:58,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2024-12-02 11:13:58,088 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/data/7ae0ccc33/f219e06cf92e42c0a86743e2ce711eb5/FLAG4fbeac06a [2024-12-02 11:13:58,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/data/7ae0ccc33/f219e06cf92e42c0a86743e2ce711eb5 [2024-12-02 11:13:58,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:13:58,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:13:58,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:13:58,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:13:58,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:13:58,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cbeeb0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58, skipping insertion in model container [2024-12-02 11:13:58,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:13:58,671 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17943,17956] [2024-12-02 11:13:58,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:13:58,683 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:13:58,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-12-02 11:13:58,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2024-12-02 11:13:58,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [516] [2024-12-02 11:13:58,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] [2024-12-02 11:13:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [582] [2024-12-02 11:13:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [681] [2024-12-02 11:13:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [749] [2024-12-02 11:13:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [929] [2024-12-02 11:13:58,739 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17943,17956] [2024-12-02 11:13:58,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:13:58,756 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:13:58,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58 WrapperNode [2024-12-02 11:13:58,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:13:58,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:13:58,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:13:58,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:13:58,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,774 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,792 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 195 [2024-12-02 11:13:58,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:13:58,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:13:58,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:13:58,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:13:58,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,816 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]. [2024-12-02 11:13:58,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,821 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:13:58,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:13:58,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:13:58,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:13:58,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (1/1) ... [2024-12-02 11:13:58,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:58,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:13:58,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:13:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:13:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 11:13:58,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 11:13:58,877 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 11:13:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 11:13:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 11:13:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 11:13:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 11:13:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 11:13:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:13:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 11:13:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 11:13:58,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:13:58,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:13:58,935 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:13:58,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:13:59,126 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-12-02 11:13:59,126 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:13:59,136 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:13:59,136 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 11:13:59,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:13:59 BoogieIcfgContainer [2024-12-02 11:13:59,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:13:59,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:13:59,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:13:59,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:13:59,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:13:58" (1/3) ... [2024-12-02 11:13:59,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686933a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:13:59, skipping insertion in model container [2024-12-02 11:13:59,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:58" (2/3) ... [2024-12-02 11:13:59,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686933a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:13:59, skipping insertion in model container [2024-12-02 11:13:59,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:13:59" (3/3) ... [2024-12-02 11:13:59,144 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2024-12-02 11:13:59,155 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:13:59,157 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec4_product42.cil.c that has 6 procedures, 73 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 11:13:59,198 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:13:59,208 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;@4f82720c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:13:59,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:13:59,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 73 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 64 states have internal predecessors, (82), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 11:13:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 11:13:59,217 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:59,217 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:59,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,222 INFO L85 PathProgramCache]: Analyzing trace with hash 60019820, now seen corresponding path program 1 times [2024-12-02 11:13:59,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704718101] [2024-12-02 11:13:59,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:59,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704718101] [2024-12-02 11:13:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704718101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:59,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:13:59,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542460446] [2024-12-02 11:13:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:59,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:13:59,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:59,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:13:59,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:59,435 INFO L87 Difference]: Start difference. First operand has 73 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 64 states have internal predecessors, (82), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:59,461 INFO L93 Difference]: Finished difference Result 126 states and 171 transitions. [2024-12-02 11:13:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:13:59,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-12-02 11:13:59,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:59,468 INFO L225 Difference]: With dead ends: 126 [2024-12-02 11:13:59,468 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 11:13:59,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:59,472 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 13 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:59,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 11:13:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 11:13:59,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 11:13:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 72 transitions. [2024-12-02 11:13:59,499 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 72 transitions. Word has length 19 [2024-12-02 11:13:59,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:59,499 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 72 transitions. [2024-12-02 11:13:59,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:59,500 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2024-12-02 11:13:59,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 11:13:59,501 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:59,501 INFO L218 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] [2024-12-02 11:13:59,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:13:59,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1556798360, now seen corresponding path program 1 times [2024-12-02 11:13:59,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147098518] [2024-12-02 11:13:59,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:59,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147098518] [2024-12-02 11:13:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147098518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:59,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:59,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:13:59,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826040374] [2024-12-02 11:13:59,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:59,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:13:59,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:59,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:13:59,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:13:59,628 INFO L87 Difference]: Start difference. First operand 56 states and 72 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:59,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:59,678 INFO L93 Difference]: Finished difference Result 105 states and 138 transitions. [2024-12-02 11:13:59,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:13:59,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-12-02 11:13:59,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:59,680 INFO L225 Difference]: With dead ends: 105 [2024-12-02 11:13:59,680 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 11:13:59,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:13:59,681 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:59,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 202 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:59,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 11:13:59,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 11:13:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 11:13:59,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2024-12-02 11:13:59,690 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 24 [2024-12-02 11:13:59,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:59,690 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2024-12-02 11:13:59,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:13:59,691 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2024-12-02 11:13:59,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 11:13:59,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:59,692 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:59,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:13:59,692 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1784101857, now seen corresponding path program 1 times [2024-12-02 11:13:59,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529344111] [2024-12-02 11:13:59,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:59,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529344111] [2024-12-02 11:13:59,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529344111] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:59,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:59,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:13:59,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376949602] [2024-12-02 11:13:59,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:59,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:13:59,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:59,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:13:59,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:59,738 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:13:59,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:59,775 INFO L93 Difference]: Finished difference Result 140 states and 182 transitions. [2024-12-02 11:13:59,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:13:59,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-12-02 11:13:59,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:59,777 INFO L225 Difference]: With dead ends: 140 [2024-12-02 11:13:59,777 INFO L226 Difference]: Without dead ends: 91 [2024-12-02 11:13:59,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:59,778 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 60 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:59,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 112 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-12-02 11:13:59,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2024-12-02 11:13:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 79 states have internal predecessors, (95), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-12-02 11:13:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2024-12-02 11:13:59,794 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 29 [2024-12-02 11:13:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:59,794 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2024-12-02 11:13:59,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:13:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2024-12-02 11:13:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 11:13:59,795 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:59,795 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:59,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:13:59,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1337678549, now seen corresponding path program 1 times [2024-12-02 11:13:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40973625] [2024-12-02 11:13:59,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:13:59,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40973625] [2024-12-02 11:13:59,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40973625] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:59,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:59,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:13:59,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041855813] [2024-12-02 11:13:59,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:59,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:13:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:59,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:13:59,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:59,898 INFO L87 Difference]: Start difference. First operand 89 states and 113 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-12-02 11:13:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:59,932 INFO L93 Difference]: Finished difference Result 243 states and 324 transitions. [2024-12-02 11:13:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:13:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 35 [2024-12-02 11:13:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:59,935 INFO L225 Difference]: With dead ends: 243 [2024-12-02 11:13:59,935 INFO L226 Difference]: Without dead ends: 161 [2024-12-02 11:13:59,935 INFO L434 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 [2024-12-02 11:13:59,936 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 41 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:59,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 125 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-12-02 11:13:59,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2024-12-02 11:13:59,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 130 states have (on average 1.3153846153846154) internal successors, (171), 140 states have internal predecessors, (171), 15 states have call successors, (15), 15 states have call predecessors, (15), 13 states have return successors, (21), 13 states have call predecessors, (21), 15 states have call successors, (21) [2024-12-02 11:13:59,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 207 transitions. [2024-12-02 11:13:59,957 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 207 transitions. Word has length 35 [2024-12-02 11:13:59,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:59,957 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 207 transitions. [2024-12-02 11:13:59,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-12-02 11:13:59,957 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 207 transitions. [2024-12-02 11:13:59,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-02 11:13:59,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:59,958 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:59,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:13:59,958 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:59,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1936220393, now seen corresponding path program 1 times [2024-12-02 11:13:59,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434077782] [2024-12-02 11:13:59,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434077782] [2024-12-02 11:14:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434077782] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:00,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:14:00,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:14:00,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068768642] [2024-12-02 11:14:00,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:00,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:14:00,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:00,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:14:00,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:14:00,109 INFO L87 Difference]: Start difference. First operand 159 states and 207 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2024-12-02 11:14:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:00,289 INFO L93 Difference]: Finished difference Result 383 states and 526 transitions. [2024-12-02 11:14:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:14:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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 35 [2024-12-02 11:14:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:00,292 INFO L225 Difference]: With dead ends: 383 [2024-12-02 11:14:00,292 INFO L226 Difference]: Without dead ends: 231 [2024-12-02 11:14:00,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:14:00,294 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 91 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:00,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 401 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:14:00,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-12-02 11:14:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2024-12-02 11:14:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 184 states have (on average 1.2934782608695652) internal successors, (238), 200 states have internal predecessors, (238), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (39), 21 states have call predecessors, (39), 21 states have call successors, (39) [2024-12-02 11:14:00,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 298 transitions. [2024-12-02 11:14:00,324 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 298 transitions. Word has length 35 [2024-12-02 11:14:00,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:00,324 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 298 transitions. [2024-12-02 11:14:00,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2024-12-02 11:14:00,324 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 298 transitions. [2024-12-02 11:14:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 11:14:00,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:00,327 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:14:00,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:14:00,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:00,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1394763608, now seen corresponding path program 1 times [2024-12-02 11:14:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:00,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045551644] [2024-12-02 11:14:00,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:00,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 11:14:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:00,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045551644] [2024-12-02 11:14:00,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045551644] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:00,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:14:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:14:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833678860] [2024-12-02 11:14:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:00,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:14:00,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:00,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:14:00,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:14:00,410 INFO L87 Difference]: Start difference. First operand 227 states and 298 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:14:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:00,449 INFO L93 Difference]: Finished difference Result 456 states and 623 transitions. [2024-12-02 11:14:00,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:14:00,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2024-12-02 11:14:00,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:00,452 INFO L225 Difference]: With dead ends: 456 [2024-12-02 11:14:00,452 INFO L226 Difference]: Without dead ends: 236 [2024-12-02 11:14:00,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:14:00,454 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:00,454 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 265 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:14:00,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-12-02 11:14:00,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-12-02 11:14:00,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 193 states have (on average 1.2797927461139897) internal successors, (247), 209 states have internal predecessors, (247), 21 states have call successors, (21), 21 states have call predecessors, (21), 21 states have return successors, (39), 21 states have call predecessors, (39), 21 states have call successors, (39) [2024-12-02 11:14:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 307 transitions. [2024-12-02 11:14:00,478 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 307 transitions. Word has length 61 [2024-12-02 11:14:00,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:00,478 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 307 transitions. [2024-12-02 11:14:00,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:14:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 307 transitions. [2024-12-02 11:14:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 11:14:00,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:00,481 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:14:00,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:14:00,481 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:00,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:00,482 INFO L85 PathProgramCache]: Analyzing trace with hash 22956310, now seen corresponding path program 1 times [2024-12-02 11:14:00,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:00,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706211054] [2024-12-02 11:14:00,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:00,598 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 11:14:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706211054] [2024-12-02 11:14:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706211054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:14:00,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:14:00,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:14:00,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085151581] [2024-12-02 11:14:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:14:00,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:14:00,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:00,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:14:00,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:14:00,600 INFO L87 Difference]: Start difference. First operand 236 states and 307 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:14:00,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:00,644 INFO L93 Difference]: Finished difference Result 424 states and 561 transitions. [2024-12-02 11:14:00,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:14:00,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 61 [2024-12-02 11:14:00,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:00,647 INFO L225 Difference]: With dead ends: 424 [2024-12-02 11:14:00,647 INFO L226 Difference]: Without dead ends: 195 [2024-12-02 11:14:00,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:14:00,649 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:00,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 327 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:14:00,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-12-02 11:14:00,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-12-02 11:14:00,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 157 states have (on average 1.267515923566879) internal successors, (199), 169 states have internal predecessors, (199), 18 states have call successors, (18), 18 states have call predecessors, (18), 19 states have return successors, (29), 19 states have call predecessors, (29), 18 states have call successors, (29) [2024-12-02 11:14:00,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 246 transitions. [2024-12-02 11:14:00,671 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 246 transitions. Word has length 61 [2024-12-02 11:14:00,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:00,671 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 246 transitions. [2024-12-02 11:14:00,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 11:14:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 246 transitions. [2024-12-02 11:14:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 11:14:00,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:00,673 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:14:00,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:14:00,673 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:00,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1488664826, now seen corresponding path program 1 times [2024-12-02 11:14:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579134814] [2024-12-02 11:14:00,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:00,872 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:00,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:14:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579134814] [2024-12-02 11:14:00,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579134814] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:14:00,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655215938] [2024-12-02 11:14:00,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:14:00,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:00,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:14:00,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:14:00,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:14:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:00,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 11:14:00,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:01,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:14:01,220 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:14:01,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655215938] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:14:01,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:14:01,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-12-02 11:14:01,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762164695] [2024-12-02 11:14:01,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:14:01,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:14:01,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:01,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:14:01,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:14:01,222 INFO L87 Difference]: Start difference. First operand 195 states and 246 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 11:14:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:14:01,361 INFO L93 Difference]: Finished difference Result 442 states and 601 transitions. [2024-12-02 11:14:01,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:14:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2024-12-02 11:14:01,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:14:01,365 INFO L225 Difference]: With dead ends: 442 [2024-12-02 11:14:01,365 INFO L226 Difference]: Without dead ends: 289 [2024-12-02 11:14:01,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:14:01,367 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 71 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:14:01,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 380 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:14:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-12-02 11:14:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 261. [2024-12-02 11:14:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 222 states have internal predecessors, (261), 27 states have call successors, (27), 27 states have call predecessors, (27), 26 states have return successors, (46), 24 states have call predecessors, (46), 27 states have call successors, (46) [2024-12-02 11:14:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 334 transitions. [2024-12-02 11:14:01,395 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 334 transitions. Word has length 65 [2024-12-02 11:14:01,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:14:01,395 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 334 transitions. [2024-12-02 11:14:01,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 11:14:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 334 transitions. [2024-12-02 11:14:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 11:14:01,397 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:14:01,397 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:14:01,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:14:01,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:14:01,598 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:14:01,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:14:01,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1707170538, now seen corresponding path program 2 times [2024-12-02 11:14:01,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:14:01,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124868632] [2024-12-02 11:14:01,599 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:14:01,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:14:01,623 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 11:14:01,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is sat [2024-12-02 11:14:01,623 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:14:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:14:01,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:14:01,660 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:14:01,661 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:14:01,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:14:01,664 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:14:01,708 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:14:01,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:14:01 BoogieIcfgContainer [2024-12-02 11:14:01,723 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:14:01,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:14:01,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:14:01,724 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:14:01,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:13:59" (3/4) ... [2024-12-02 11:14:01,725 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-02 11:14:01,792 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 87. [2024-12-02 11:14:01,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:14:01,869 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:14:01,869 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:14:01,870 INFO L158 Benchmark]: Toolchain (without parser) took 3455.21ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 92.3MB in the beginning and 170.0MB in the end (delta: -77.7MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,870 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:14:01,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.32ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 73.6MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.34ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,871 INFO L158 Benchmark]: Boogie Preprocessor took 35.73ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:14:01,871 INFO L158 Benchmark]: RCFGBuilder took 307.40ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 54.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,872 INFO L158 Benchmark]: TraceAbstraction took 2584.92ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 53.9MB in the beginning and 181.4MB in the end (delta: -127.5MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,872 INFO L158 Benchmark]: Witness Printer took 146.01ms. Allocated memory is still 209.7MB. Free memory was 181.4MB in the beginning and 170.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:14:01,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.32ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 73.6MB in the end (delta: 18.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.34ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.73ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.40ms. Allocated memory is still 117.4MB. Free memory was 69.9MB in the beginning and 54.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2584.92ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 53.9MB in the beginning and 181.4MB in the end (delta: -127.5MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. * Witness Printer took 146.01ms. Allocated memory is still 209.7MB. Free memory was 181.4MB in the beginning and 170.0MB in the end (delta: 11.4MB). 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,"libacc.i","") [150] - GenericResultAtLocation [Line: 516]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [516] - GenericResultAtLocation [Line: 554]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [554] - GenericResultAtLocation [Line: 582]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [582] - GenericResultAtLocation [Line: 681]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [681] - GenericResultAtLocation [Line: 749]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [749] - GenericResultAtLocation [Line: 929]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [929] * 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 - CounterExampleResult [Line: 934]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L320] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L583] int cleanupTimeShifts = 4; [L752] int pumpRunning = 0; [L753] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L659] int retValue_acc ; [L660] int tmp ; [L664] FCALL select_helpers() [L665] FCALL select_features() [L666] CALL, EXPR valid_product() [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L666] RET, EXPR valid_product() [L666] tmp = valid_product() [L668] COND TRUE \read(tmp) [L670] FCALL setup() [L671] CALL runTest() [L653] CALL test() [L684] int splverifierCounter ; [L685] int tmp ; [L686] int tmp___0 ; [L687] int tmp___1 ; [L688] int tmp___2 ; [L691] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L701] tmp = __VERIFIER_nondet_int() [L703] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L705] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L705] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L725] CALL startSystem() [L925] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L725] RET startSystem() [L738] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L791] COND TRUE ! pumpRunning [L793] CALL, EXPR isHighWaterLevel() [L903] int retValue_acc ; [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] RET, EXPR isHighWaterSensorDry() [L909] tmp = isHighWaterSensorDry() [L911] COND FALSE !(\read(tmp)) [L914] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L916] retValue_acc = tmp___0 [L917] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L793] RET, EXPR isHighWaterLevel() [L793] tmp = isHighWaterLevel() [L795] COND TRUE \read(tmp) [L797] CALL activatePump() [L822] int tmp ; [L826] CALL, EXPR isMethaneAlarm() [L847] int retValue_acc ; [L851] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] RET, EXPR isMethaneLevelCritical() [L851] retValue_acc = isMethaneLevelCritical() [L853] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] RET, EXPR isMethaneAlarm() [L826] tmp = isMethaneAlarm() [L828] COND FALSE !(\read(tmp)) [L832] CALL activatePump__wrappee__highWaterSensor() [L816] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] RET activatePump__wrappee__highWaterSensor() [L797] RET activatePump() [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L774] RET __utac_acc__Specification4_spec__1() [L738] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L725] CALL startSystem() [L925] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L725] RET startSystem() [L738] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L759] COND TRUE \read(pumpRunning) [L761] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L761] RET lowerWaterLevel() [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L791] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L806] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L774] RET __utac_acc__Specification4_spec__1() [L738] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L695] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L701] tmp = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L711] tmp___0 = __VERIFIER_nondet_int() [L713] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=1] [L721] tmp___2 = __VERIFIER_nondet_int() [L723] COND TRUE \read(tmp___2) [L725] CALL startSystem() [L925] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L725] RET startSystem() [L738] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L759] COND TRUE \read(pumpRunning) [L761] CALL lowerWaterLevel() [L63] COND TRUE waterLevel > 0 [L64] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L761] RET lowerWaterLevel() [L766] COND TRUE \read(systemActive) [L768] CALL processEnvironment() [L788] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L791] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L806] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L768] RET processEnvironment() [L774] CALL __utac_acc__Specification4_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L563] RET, EXPR getWaterLevel() [L563] tmp = getWaterLevel() [L565] COND TRUE tmp == 0 [L567] CALL, EXPR isPumpRunning() [L858] int retValue_acc ; [L861] retValue_acc = pumpRunning [L862] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L567] RET, EXPR isPumpRunning() [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) [L571] CALL __automaton_fail() [L934] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 345 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 342 mSDsluCounter, 1946 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1370 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 576 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 144 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred in iteration=8, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 827 SizeOfPredicates, 2 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 68/80 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-12-02 11:14:01,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5920e657-3b69-4edd-9bfd-430e760fe68a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE