./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme --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 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:51:51,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:51:51,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:51:51,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:51:51,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:51:51,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:51:51,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:51:51,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:51:51,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:51:51,881 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:51:51,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:51:51,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:51:51,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:51:51,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:51:51,884 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:51:51,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:51:51,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:51:51,885 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:51:51,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:51:51,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:51:51,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:51:51,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:51:51,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:51:51,897 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:51:51,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:51:51,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:51:51,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:51:51,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:51:51,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:51:51,900 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:51:51,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:51:51,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:51,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:51:51,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:51:51,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:51:51,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:51:51,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:51:51,909 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:51:51,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:51:51,910 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:51:51,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:51:51,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:51:51,911 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29e70cf9c9b1d0bd005d907ed1d78af9dd0d19752a19f66dfee72f35dd243fc7 [2023-11-26 11:51:52,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:51:52,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:51:52,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:51:52,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:51:52,206 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:51:52,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2023-11-26 11:51:55,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:51:55,536 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:51:55,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2023-11-26 11:51:55,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/data/eeb3f18c8/836e1ecb7287482e99830e250c041a32/FLAG39068a27a [2023-11-26 11:51:55,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/data/eeb3f18c8/836e1ecb7287482e99830e250c041a32 [2023-11-26 11:51:55,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:51:55,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:51:55,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:55,575 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:51:55,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:51:55,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:55" (1/1) ... [2023-11-26 11:51:55,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3882b61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:55, skipping insertion in model container [2023-11-26 11:51:55,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:51:55" (1/1) ... [2023-11-26 11:51:55,651 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:51:55,941 WARN L240 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_5bc95164-34b4-4616-9884-636a71267fc1/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2023-11-26 11:51:55,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:55,987 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:51:56,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-26 11:51:56,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2023-11-26 11:51:56,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [519] [2023-11-26 11:51:56,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [705] [2023-11-26 11:51:56,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [770] [2023-11-26 11:51:56,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] [2023-11-26 11:51:56,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [874] [2023-11-26 11:51:56,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [908] [2023-11-26 11:51:56,101 WARN L240 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_5bc95164-34b4-4616-9884-636a71267fc1/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c[17206,17219] [2023-11-26 11:51:56,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:51:56,124 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:51:56,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56 WrapperNode [2023-11-26 11:51:56,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:51:56,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:56,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:51:56,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:51:56,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,174 INFO L138 Inliner]: procedures = 53, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 198 [2023-11-26 11:51:56,175 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:51:56,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:51:56,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:51:56,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:51:56,187 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,231 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]. [2023-11-26 11:51:56,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:51:56,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:51:56,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:51:56,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:51:56,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (1/1) ... [2023-11-26 11:51:56,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:51:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:51:56,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:51:56,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:51:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:51:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 11:51:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 11:51:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 11:51:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 11:51:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:51:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:51:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:51:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:51:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:51:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:51:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:51:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:51:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:51:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:51:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:51:56,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:51:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:51:56,454 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:51:56,456 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:51:56,719 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:56,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:56,795 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:51:56,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:56 BoogieIcfgContainer [2023-11-26 11:51:56,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:56,799 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:56,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:56,803 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:56,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:51:55" (1/3) ... [2023-11-26 11:51:56,804 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4183edd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:56, skipping insertion in model container [2023-11-26 11:51:56,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:51:56" (2/3) ... [2023-11-26 11:51:56,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4183edd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:56, skipping insertion in model container [2023-11-26 11:51:56,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:56" (3/3) ... [2023-11-26 11:51:56,806 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2023-11-26 11:51:56,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:56,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:51:56,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:56,899 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5aaaeac1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:56,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:51:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:51:56,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:51:56,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:56,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:56,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:56,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:56,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1422138663, now seen corresponding path program 1 times [2023-11-26 11:51:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929379137] [2023-11-26 11:51:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:56,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:51:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:57,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:57,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929379137] [2023-11-26 11:51:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929379137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:57,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:57,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:57,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762467994] [2023-11-26 11:51:57,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:57,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:51:57,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:57,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:51:57,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:57,247 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:57,353 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2023-11-26 11:51:57,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:51:57,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 11:51:57,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:57,370 INFO L225 Difference]: With dead ends: 134 [2023-11-26 11:51:57,370 INFO L226 Difference]: Without dead ends: 63 [2023-11-26 11:51:57,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:51:57,378 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:57,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:57,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-26 11:51:57,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-26 11:51:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 11:51:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-11-26 11:51:57,442 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 17 [2023-11-26 11:51:57,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:57,442 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-11-26 11:51:57,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-11-26 11:51:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:51:57,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:57,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:57,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:51:57,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:57,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash -281378437, now seen corresponding path program 1 times [2023-11-26 11:51:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495488974] [2023-11-26 11:51:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:57,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:51:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:57,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495488974] [2023-11-26 11:51:57,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495488974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:57,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:57,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:51:57,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317346235] [2023-11-26 11:51:57,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:57,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:57,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:57,595 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:57,632 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-11-26 11:51:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:57,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-26 11:51:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:57,634 INFO L225 Difference]: With dead ends: 99 [2023-11-26 11:51:57,634 INFO L226 Difference]: Without dead ends: 55 [2023-11-26 11:51:57,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:57,637 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:57,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 114 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:51:57,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-26 11:51:57,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-26 11:51:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 states have internal predecessors, (57), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:51:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-11-26 11:51:57,647 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 18 [2023-11-26 11:51:57,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:57,647 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-26 11:51:57,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,648 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-11-26 11:51:57,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:51:57,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:57,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:57,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:51:57,650 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:57,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:57,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1667853593, now seen corresponding path program 1 times [2023-11-26 11:51:57,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:57,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051593996] [2023-11-26 11:51:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:57,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:57,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:57,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:57,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051593996] [2023-11-26 11:51:57,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051593996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:57,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:57,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:51:57,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766921476] [2023-11-26 11:51:57,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:57,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:57,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:57,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:57,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:57,884 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:57,970 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2023-11-26 11:51:57,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:57,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 11:51:57,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:57,972 INFO L225 Difference]: With dead ends: 108 [2023-11-26 11:51:57,972 INFO L226 Difference]: Without dead ends: 55 [2023-11-26 11:51:57,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:57,975 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 74 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:57,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 92 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:57,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-26 11:51:57,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-26 11:51:57,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.435897435897436) internal successors, (56), 46 states have internal predecessors, (56), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:51:57,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2023-11-26 11:51:57,986 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 21 [2023-11-26 11:51:57,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:57,986 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2023-11-26 11:51:57,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:51:57,987 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2023-11-26 11:51:57,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 11:51:57,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:57,988 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:57,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:51:57,989 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:57,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1802853743, now seen corresponding path program 1 times [2023-11-26 11:51:57,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:57,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98854741] [2023-11-26 11:51:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:57,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:51:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:51:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98854741] [2023-11-26 11:51:58,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98854741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:51:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926334557] [2023-11-26 11:51:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:58,069 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:51:58,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:58,165 INFO L93 Difference]: Finished difference Result 147 states and 201 transitions. [2023-11-26 11:51:58,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:58,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-26 11:51:58,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:58,168 INFO L225 Difference]: With dead ends: 147 [2023-11-26 11:51:58,171 INFO L226 Difference]: Without dead ends: 94 [2023-11-26 11:51:58,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:58,178 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 57 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:58,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 122 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-26 11:51:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-11-26 11:51:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.393939393939394) internal successors, (92), 73 states have internal predecessors, (92), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-26 11:51:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2023-11-26 11:51:58,202 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 28 [2023-11-26 11:51:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:58,203 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2023-11-26 11:51:58,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:51:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2023-11-26 11:51:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 11:51:58,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:58,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:58,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:51:58,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:58,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:58,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1647135842, now seen corresponding path program 1 times [2023-11-26 11:51:58,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:58,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428135221] [2023-11-26 11:51:58,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:58,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:51:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:58,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:58,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428135221] [2023-11-26 11:51:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428135221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:51:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493061096] [2023-11-26 11:51:58,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:58,337 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:51:58,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:58,618 INFO L93 Difference]: Finished difference Result 313 states and 447 transitions. [2023-11-26 11:51:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:51:58,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2023-11-26 11:51:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:58,622 INFO L225 Difference]: With dead ends: 313 [2023-11-26 11:51:58,622 INFO L226 Difference]: Without dead ends: 223 [2023-11-26 11:51:58,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:51:58,625 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 132 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:58,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 233 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:51:58,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-26 11:51:58,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2023-11-26 11:51:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 157 states have (on average 1.3821656050955413) internal successors, (217), 168 states have internal predecessors, (217), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-11-26 11:51:58,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 301 transitions. [2023-11-26 11:51:58,666 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 301 transitions. Word has length 33 [2023-11-26 11:51:58,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:58,666 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 301 transitions. [2023-11-26 11:51:58,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:51:58,667 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 301 transitions. [2023-11-26 11:51:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 11:51:58,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:58,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:58,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:51:58,670 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:58,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:58,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1059483552, now seen corresponding path program 1 times [2023-11-26 11:51:58,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:58,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895715779] [2023-11-26 11:51:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:51:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:58,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895715779] [2023-11-26 11:51:58,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895715779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:58,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749296776] [2023-11-26 11:51:58,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:58,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:51:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:58,791 INFO L87 Difference]: Start difference. First operand 216 states and 301 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-26 11:51:58,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:58,962 INFO L93 Difference]: Finished difference Result 434 states and 612 transitions. [2023-11-26 11:51:58,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:51:58,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 33 [2023-11-26 11:51:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:58,966 INFO L225 Difference]: With dead ends: 434 [2023-11-26 11:51:58,967 INFO L226 Difference]: Without dead ends: 220 [2023-11-26 11:51:58,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:51:58,969 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 45 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:58,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 180 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:58,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-26 11:51:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2023-11-26 11:51:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.3773584905660377) internal successors, (219), 170 states have internal predecessors, (219), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-11-26 11:51:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 303 transitions. [2023-11-26 11:51:59,009 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 303 transitions. Word has length 33 [2023-11-26 11:51:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,010 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 303 transitions. [2023-11-26 11:51:59,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-26 11:51:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 303 transitions. [2023-11-26 11:51:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 11:51:59,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:59,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:51:59,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:59,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1955620066, now seen corresponding path program 1 times [2023-11-26 11:51:59,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347350444] [2023-11-26 11:51:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 11:51:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:59,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:59,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347350444] [2023-11-26 11:51:59,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347350444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:59,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:59,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:51:59,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583404498] [2023-11-26 11:51:59,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:59,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:59,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:59,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:59,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:59,169 INFO L87 Difference]: Start difference. First operand 218 states and 303 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-26 11:51:59,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:59,332 INFO L93 Difference]: Finished difference Result 423 states and 597 transitions. [2023-11-26 11:51:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:51:59,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 33 [2023-11-26 11:51:59,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:59,335 INFO L225 Difference]: With dead ends: 423 [2023-11-26 11:51:59,335 INFO L226 Difference]: Without dead ends: 207 [2023-11-26 11:51:59,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:59,337 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 63 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:59,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 168 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-26 11:51:59,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2023-11-26 11:51:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 159 states have internal predecessors, (204), 29 states have call successors, (29), 24 states have call predecessors, (29), 26 states have return successors, (45), 28 states have call predecessors, (45), 29 states have call successors, (45) [2023-11-26 11:51:59,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 278 transitions. [2023-11-26 11:51:59,366 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 278 transitions. Word has length 33 [2023-11-26 11:51:59,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,367 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 278 transitions. [2023-11-26 11:51:59,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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) [2023-11-26 11:51:59,367 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 278 transitions. [2023-11-26 11:51:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-26 11:51:59,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:59,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:51:59,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:59,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1037087663, now seen corresponding path program 1 times [2023-11-26 11:51:59,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392726663] [2023-11-26 11:51:59,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:51:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:51:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-26 11:51:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:59,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:59,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392726663] [2023-11-26 11:51:59,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392726663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:59,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:59,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:51:59,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878652901] [2023-11-26 11:51:59,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:59,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:51:59,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:59,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:51:59,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:51:59,452 INFO L87 Difference]: Start difference. First operand 205 states and 278 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:51:59,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:59,647 INFO L93 Difference]: Finished difference Result 410 states and 560 transitions. [2023-11-26 11:51:59,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:51:59,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-11-26 11:51:59,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:59,650 INFO L225 Difference]: With dead ends: 410 [2023-11-26 11:51:59,650 INFO L226 Difference]: Without dead ends: 207 [2023-11-26 11:51:59,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:59,652 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 113 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:59,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 160 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:51:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-26 11:51:59,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 202. [2023-11-26 11:51:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 146 states have (on average 1.3356164383561644) internal successors, (195), 156 states have internal predecessors, (195), 29 states have call successors, (29), 24 states have call predecessors, (29), 26 states have return successors, (45), 28 states have call predecessors, (45), 29 states have call successors, (45) [2023-11-26 11:51:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 269 transitions. [2023-11-26 11:51:59,679 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 269 transitions. Word has length 36 [2023-11-26 11:51:59,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:59,680 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 269 transitions. [2023-11-26 11:51:59,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:51:59,680 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 269 transitions. [2023-11-26 11:51:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-26 11:51:59,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:59,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:51:59,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:51:59,683 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:51:59,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:59,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1217605442, now seen corresponding path program 1 times [2023-11-26 11:51:59,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:51:59,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824293183] [2023-11-26 11:51:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:59,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:51:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:51:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:51:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-26 11:51:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:59,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:59,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:51:59,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824293183] [2023-11-26 11:51:59,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824293183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:59,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:59,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:51:59,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687852243] [2023-11-26 11:51:59,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:59,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:51:59,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:51:59,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:51:59,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:51:59,796 INFO L87 Difference]: Start difference. First operand 202 states and 269 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:52:00,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:00,080 INFO L93 Difference]: Finished difference Result 433 states and 575 transitions. [2023-11-26 11:52:00,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:52:00,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-11-26 11:52:00,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:00,083 INFO L225 Difference]: With dead ends: 433 [2023-11-26 11:52:00,083 INFO L226 Difference]: Without dead ends: 233 [2023-11-26 11:52:00,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:52:00,085 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 164 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:00,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 207 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:00,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-26 11:52:00,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 229. [2023-11-26 11:52:00,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 179 states have internal predecessors, (209), 33 states have call successors, (33), 24 states have call predecessors, (33), 30 states have return successors, (45), 32 states have call predecessors, (45), 33 states have call successors, (45) [2023-11-26 11:52:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 287 transitions. [2023-11-26 11:52:00,114 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 287 transitions. Word has length 37 [2023-11-26 11:52:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:00,115 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 287 transitions. [2023-11-26 11:52:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:52:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 287 transitions. [2023-11-26 11:52:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-26 11:52:00,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:00,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:00,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:52:00,117 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:00,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:00,118 INFO L85 PathProgramCache]: Analyzing trace with hash -67188941, now seen corresponding path program 1 times [2023-11-26 11:52:00,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:00,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797696583] [2023-11-26 11:52:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:52:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-26 11:52:00,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:52:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 11:52:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:52:00,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:00,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797696583] [2023-11-26 11:52:00,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797696583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:52:00,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:52:00,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:52:00,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238813887] [2023-11-26 11:52:00,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:52:00,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:52:00,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:00,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:52:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:52:00,208 INFO L87 Difference]: Start difference. First operand 229 states and 287 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:52:00,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:00,406 INFO L93 Difference]: Finished difference Result 442 states and 556 transitions. [2023-11-26 11:52:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:52:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-11-26 11:52:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:00,408 INFO L225 Difference]: With dead ends: 442 [2023-11-26 11:52:00,409 INFO L226 Difference]: Without dead ends: 215 [2023-11-26 11:52:00,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:52:00,410 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 98 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:00,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 143 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:52:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-26 11:52:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-26 11:52:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.2564102564102564) internal successors, (196), 169 states have internal predecessors, (196), 31 states have call successors, (31), 23 states have call predecessors, (31), 27 states have return successors, (41), 29 states have call predecessors, (41), 31 states have call successors, (41) [2023-11-26 11:52:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2023-11-26 11:52:00,435 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 40 [2023-11-26 11:52:00,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:00,435 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2023-11-26 11:52:00,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:52:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2023-11-26 11:52:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:52:00,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:52:00,437 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:52:00,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:52:00,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:52:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash -563843024, now seen corresponding path program 1 times [2023-11-26 11:52:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:52:00,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503594598] [2023-11-26 11:52:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:52:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:52:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:52:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-26 11:52:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:52:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-26 11:52:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-26 11:52:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,762 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:52:00,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:52:00,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503594598] [2023-11-26 11:52:00,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503594598] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:52:00,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776991985] [2023-11-26 11:52:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:52:00,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:52:00,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:52:00,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:52:00,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:52:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:52:00,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 11:52:00,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:52:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-26 11:52:01,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:52:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-26 11:52:01,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776991985] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:52:01,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:52:01,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 13 [2023-11-26 11:52:01,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130807436] [2023-11-26 11:52:01,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:52:01,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:52:01,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:52:01,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:52:01,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:52:01,330 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-26 11:52:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:52:01,708 INFO L93 Difference]: Finished difference Result 465 states and 597 transitions. [2023-11-26 11:52:01,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:52:01,708 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 64 [2023-11-26 11:52:01,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:52:01,710 INFO L225 Difference]: With dead ends: 465 [2023-11-26 11:52:01,710 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:52:01,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 131 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=360, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:52:01,713 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 259 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:52:01,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 132 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:52:01,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:52:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:52:01,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:52:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:52:01,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2023-11-26 11:52:01,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:52:01,715 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:52:01,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-26 11:52:01,715 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:52:01,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:52:01,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:52:01,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:52:01,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:52:01,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:52:02,894 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 555 561) no Hoare annotation was computed. [2023-11-26 11:52:02,894 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 555 561) the Hoare annotation is: true [2023-11-26 11:52:02,894 INFO L899 garLoopResultBuilder]: For program point L802-1(lines 798 809) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 798 809) the Hoare annotation is: true [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 798 809) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 810 818) the Hoare annotation is: true [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 810 818) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 900) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 903) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point L890-1(lines 875 907) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 534 553) no Hoare annotation was computed. [2023-11-26 11:52:02,895 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 605) no Hoare annotation was computed. [2023-11-26 11:52:02,896 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse9)) (.cse1 (and .cse8 .cse6 .cse9 .cse4)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (let ((.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse6 .cse7 .cse5) (not (= |old(~pumpRunning~0)| 1)) (and .cse8 .cse6 .cse7) .cse2 .cse3))))) [2023-11-26 11:52:02,896 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 610) no Hoare annotation was computed. [2023-11-26 11:52:02,897 INFO L899 garLoopResultBuilder]: For program point L882-1(line 882) no Hoare annotation was computed. [2023-11-26 11:52:02,897 INFO L899 garLoopResultBuilder]: For program point L870(line 870) no Hoare annotation was computed. [2023-11-26 11:52:02,897 INFO L895 garLoopResultBuilder]: At program point L635(line 635) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-11-26 11:52:02,897 INFO L899 garLoopResultBuilder]: For program point L635-1(line 635) no Hoare annotation was computed. [2023-11-26 11:52:02,897 INFO L895 garLoopResultBuilder]: At program point L603(line 603) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-11-26 11:52:02,897 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 904) no Hoare annotation was computed. [2023-11-26 11:52:02,898 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 531 554) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2023-11-26 11:52:02,898 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-11-26 11:52:02,898 INFO L899 garLoopResultBuilder]: For program point L608-1(lines 589 613) no Hoare annotation was computed. [2023-11-26 11:52:02,898 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 542 548) no Hoare annotation was computed. [2023-11-26 11:52:02,898 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 531 554) no Hoare annotation was computed. [2023-11-26 11:52:02,898 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2023-11-26 11:52:02,898 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 870) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point L778-2(lines 774 785) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-26 11:52:02,899 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-26 11:52:02,899 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-26 11:52:02,900 INFO L895 garLoopResultBuilder]: At program point L762(lines 715 763) the Hoare annotation is: false [2023-11-26 11:52:02,900 INFO L899 garLoopResultBuilder]: For program point L717(lines 716 761) no Hoare annotation was computed. [2023-11-26 11:52:02,900 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 757) no Hoare annotation was computed. [2023-11-26 11:52:02,900 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-26 11:52:02,900 INFO L895 garLoopResultBuilder]: At program point L759(lines 716 761) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2023-11-26 11:52:02,900 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2023-11-26 11:52:02,900 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2023-11-26 11:52:02,900 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L752(lines 752 756) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L895 garLoopResultBuilder]: At program point L752-2(lines 746 757) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L765(lines 706 769) no Hoare annotation was computed. [2023-11-26 11:52:02,901 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2023-11-26 11:52:02,901 INFO L899 garLoopResultBuilder]: For program point L855(lines 855 861) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 563 587) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 851 864) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L895 garLoopResultBuilder]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (<= ~waterLevel~0 1)) .cse0))) [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 563 587) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 579) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 584) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 699) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L899 garLoopResultBuilder]: For program point L695-2(lines 695 699) no Hoare annotation was computed. [2023-11-26 11:52:02,902 INFO L895 garLoopResultBuilder]: At program point L582(line 582) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-11-26 11:52:02,903 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 563 587) no Hoare annotation was computed. [2023-11-26 11:52:02,903 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 786 797) no Hoare annotation was computed. [2023-11-26 11:52:02,903 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 786 797) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< 1 |old(~waterLevel~0)|) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 1)) .cse0 .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-11-26 11:52:02,903 INFO L899 garLoopResultBuilder]: For program point L790-1(lines 786 797) no Hoare annotation was computed. [2023-11-26 11:52:02,905 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:52:02,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:52:02,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:52:02 BoogieIcfgContainer [2023-11-26 11:52:02,920 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:52:02,921 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:52:02,921 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:52:02,921 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:52:02,921 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:56" (3/4) ... [2023-11-26 11:52:02,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:52:02,926 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 11:52:02,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 11:52:02,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-26 11:52:02,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 11:52:02,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 11:52:02,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 11:52:02,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 11:52:02,935 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-11-26 11:52:02,935 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:52:02,936 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:52:02,936 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:52:02,937 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:52:03,051 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:52:03,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:52:03,052 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:52:03,053 INFO L158 Benchmark]: Toolchain (without parser) took 7479.94ms. Allocated memory was 113.2MB in the beginning and 205.5MB in the end (delta: 92.3MB). Free memory was 67.6MB in the beginning and 114.8MB in the end (delta: -47.1MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,053 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:52:03,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.93ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 48.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.85ms. Allocated memory is still 113.2MB. Free memory was 48.3MB in the beginning and 46.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,054 INFO L158 Benchmark]: Boogie Preprocessor took 81.41ms. Allocated memory is still 113.2MB. Free memory was 46.0MB in the beginning and 83.5MB in the end (delta: -37.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,055 INFO L158 Benchmark]: RCFGBuilder took 538.49ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 83.5MB in the beginning and 122.0MB in the end (delta: -38.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,055 INFO L158 Benchmark]: TraceAbstraction took 6120.58ms. Allocated memory was 167.8MB in the beginning and 205.5MB in the end (delta: 37.7MB). Free memory was 120.7MB in the beginning and 122.1MB in the end (delta: -1.4MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,056 INFO L158 Benchmark]: Witness Printer took 131.54ms. Allocated memory is still 205.5MB. Free memory was 121.1MB in the beginning and 114.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:52:03,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.93ms. Allocated memory is still 113.2MB. Free memory was 67.6MB in the beginning and 48.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.85ms. Allocated memory is still 113.2MB. Free memory was 48.3MB in the beginning and 46.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.41ms. Allocated memory is still 113.2MB. Free memory was 46.0MB in the beginning and 83.5MB in the end (delta: -37.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * RCFGBuilder took 538.49ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 83.5MB in the beginning and 122.0MB in the end (delta: -38.5MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6120.58ms. Allocated memory was 167.8MB in the beginning and 205.5MB in the end (delta: 37.7MB). Free memory was 120.7MB in the beginning and 122.1MB in the end (delta: -1.4MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. * Witness Printer took 131.54ms. Allocated memory is still 205.5MB. Free memory was 121.1MB in the beginning and 114.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [519] - GenericResultAtLocation [Line: 705]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [705] - GenericResultAtLocation [Line: 770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [770] - GenericResultAtLocation [Line: 865]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [874] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [908] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 870]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1048 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1016 mSDsluCounter, 1629 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1031 mSDsCounter, 308 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1323 IncrementalHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 308 mSolverCounterUnsat, 598 mSDtfsCounter, 1323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 196 SyntacticMatches, 6 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=9, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 522 PreInvPairs, 570 NumberOfFragments, 480 HoareAnnotationTreeSize, 522 FomulaSimplifications, 182 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 21 FomulaSimplificationsInter, 863 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 959 SizeOfPredicates, 3 NumberOfNonLiveVariables, 261 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 46/68 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((tmp == 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1))) - InvariantResult [Line: 715]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-26 11:52:03,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bc95164-34b4-4616-9884-636a71267fc1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE