./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX --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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:55:11,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:55:11,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:55:11,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:55:11,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:55:11,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:55:11,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:55:11,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:55:11,830 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:55:11,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:55:11,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:55:11,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:55:11,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:55:11,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:55:11,832 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:55:11,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:55:11,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:55:11,834 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:55:11,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:55:11,835 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:55:11,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:55:11,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:55:11,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:55:11,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:55:11,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:55:11,841 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:55:11,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:55:11,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:55:11,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:55:11,842 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:55:11,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:55:11,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:55:11,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:11,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:55:11,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:55:11,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:55:11,848 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:55:11,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:55:11,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:55:11,849 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:55:11,849 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:55:11,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:55:11,853 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_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2024-11-08 17:55:12,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:55:12,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:55:12,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:55:12,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:55:12,188 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:55:12,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c Unable to find full path for "g++" [2024-11-08 17:55:14,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:55:14,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:55:14,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2024-11-08 17:55:14,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/data/26f1b5126/2460d0ed6a394a7c806e35b9da570750/FLAGd06f0c73c [2024-11-08 17:55:14,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/data/26f1b5126/2460d0ed6a394a7c806e35b9da570750 [2024-11-08 17:55:14,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:55:14,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:55:14,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:14,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:55:14,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:55:14,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:14" (1/1) ... [2024-11-08 17:55:14,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c691d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:14, skipping insertion in model container [2024-11-08 17:55:14,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:55:14" (1/1) ... [2024-11-08 17:55:14,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:55:15,098 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2024-11-08 17:55:15,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:15,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:55:15,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-08 17:55:15,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-08 17:55:15,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-11-08 17:55:15,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] [2024-11-08 17:55:15,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-08 17:55:15,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] [2024-11-08 17:55:15,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-11-08 17:55:15,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] [2024-11-08 17:55:15,368 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2024-11-08 17:55:15,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:55:15,470 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:55:15,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15 WrapperNode [2024-11-08 17:55:15,471 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:55:15,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:15,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:55:15,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:55:15,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,534 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 235 [2024-11-08 17:55:15,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:55:15,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:55:15,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:55:15,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:55:15,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:55:15,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,618 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:55:15,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:55:15,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:55:15,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:55:15,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (1/1) ... [2024-11-08 17:55:15,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:55:15,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:15,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:55:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:55:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:55:15,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 17:55:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 17:55:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 17:55:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 17:55:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 17:55:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 17:55:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 17:55:15,691 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 17:55:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 17:55:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 17:55:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:55:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:55:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-08 17:55:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-08 17:55:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 17:55:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 17:55:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:55:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 17:55:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 17:55:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:55:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:55:15,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:55:15,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:55:16,175 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-08 17:55:16,175 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:55:16,190 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:55:16,191 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:55:16,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:16 BoogieIcfgContainer [2024-11-08 17:55:16,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:55:16,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:55:16,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:55:16,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:55:16,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:55:14" (1/3) ... [2024-11-08 17:55:16,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77687165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:16, skipping insertion in model container [2024-11-08 17:55:16,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:55:15" (2/3) ... [2024-11-08 17:55:16,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77687165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:55:16, skipping insertion in model container [2024-11-08 17:55:16,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:16" (3/3) ... [2024-11-08 17:55:16,201 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2024-11-08 17:55:16,222 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:55:16,222 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:55:16,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:55:16,308 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@474cf4b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:55:16,308 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:55:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 17:55:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:55:16,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:16,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:16,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:16,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash -250246345, now seen corresponding path program 1 times [2024-11-08 17:55:16,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:16,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104074944] [2024-11-08 17:55:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:16,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:16,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:16,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104074944] [2024-11-08 17:55:16,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104074944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:16,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:16,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:55:16,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696339214] [2024-11-08 17:55:16,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:16,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:55:16,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:16,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:55:16,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:16,569 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:16,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:16,609 INFO L93 Difference]: Finished difference Result 198 states and 269 transitions. [2024-11-08 17:55:16,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:55:16,612 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-08 17:55:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:16,628 INFO L225 Difference]: With dead ends: 198 [2024-11-08 17:55:16,628 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 17:55:16,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:55:16,641 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:16,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 17:55:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 17:55:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 17:55:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2024-11-08 17:55:16,720 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 19 [2024-11-08 17:55:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:16,724 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2024-11-08 17:55:16,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:16,725 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2024-11-08 17:55:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:55:16,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:16,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:16,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:55:16,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:16,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:16,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1249525353, now seen corresponding path program 1 times [2024-11-08 17:55:16,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:16,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470393200] [2024-11-08 17:55:16,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:16,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:16,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:16,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470393200] [2024-11-08 17:55:16,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470393200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:16,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:16,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:55:16,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095005041] [2024-11-08 17:55:16,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:16,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:55:16,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:55:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:55:16,958 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:16,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:16,981 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2024-11-08 17:55:16,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:55:16,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 17:55:16,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:16,984 INFO L225 Difference]: With dead ends: 154 [2024-11-08 17:55:16,985 INFO L226 Difference]: Without dead ends: 85 [2024-11-08 17:55:16,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:55:16,990 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:16,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:16,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-08 17:55:17,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-08 17:55:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 17:55:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2024-11-08 17:55:17,011 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 20 [2024-11-08 17:55:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:17,012 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2024-11-08 17:55:17,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2024-11-08 17:55:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 17:55:17,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:17,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:17,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:55:17,018 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:17,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1573018675, now seen corresponding path program 1 times [2024-11-08 17:55:17,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:17,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570703103] [2024-11-08 17:55:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:17,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:17,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570703103] [2024-11-08 17:55:17,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570703103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:17,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:17,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:55:17,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941727844] [2024-11-08 17:55:17,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:17,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:55:17,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:17,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:55:17,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:55:17,250 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:17,279 INFO L93 Difference]: Finished difference Result 163 states and 214 transitions. [2024-11-08 17:55:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:55:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-08 17:55:17,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:17,283 INFO L225 Difference]: With dead ends: 163 [2024-11-08 17:55:17,283 INFO L226 Difference]: Without dead ends: 85 [2024-11-08 17:55:17,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:55:17,285 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:17,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 108 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-08 17:55:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-08 17:55:17,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 72 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 17:55:17,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-08 17:55:17,306 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 24 [2024-11-08 17:55:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-08 17:55:17,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-08 17:55:17,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 17:55:17,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:17,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:17,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:55:17,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:17,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:17,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1115070652, now seen corresponding path program 1 times [2024-11-08 17:55:17,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:17,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150510005] [2024-11-08 17:55:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:17,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:55:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:17,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 17:55:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:17,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:17,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150510005] [2024-11-08 17:55:17,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150510005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:17,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:17,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:55:17,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281369650] [2024-11-08 17:55:17,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:17,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:55:17,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:17,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:55:17,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:55:17,452 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:55:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:17,721 INFO L93 Difference]: Finished difference Result 238 states and 306 transitions. [2024-11-08 17:55:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:55:17,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 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 37 [2024-11-08 17:55:17,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:17,724 INFO L225 Difference]: With dead ends: 238 [2024-11-08 17:55:17,724 INFO L226 Difference]: Without dead ends: 160 [2024-11-08 17:55:17,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:55:17,727 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 153 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:17,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 185 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:55:17,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-08 17:55:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2024-11-08 17:55:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 126 states have internal predecessors, (149), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2024-11-08 17:55:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 192 transitions. [2024-11-08 17:55:17,767 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 192 transitions. Word has length 37 [2024-11-08 17:55:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:17,767 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 192 transitions. [2024-11-08 17:55:17,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 17:55:17,768 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 192 transitions. [2024-11-08 17:55:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 17:55:17,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:17,770 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:17,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:55:17,770 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:17,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash 630282670, now seen corresponding path program 1 times [2024-11-08 17:55:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:17,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813195788] [2024-11-08 17:55:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:17,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:55:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:18,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:18,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:18,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:18,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813195788] [2024-11-08 17:55:18,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813195788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:18,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:18,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:55:18,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120412580] [2024-11-08 17:55:18,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:18,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:55:18,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:18,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:55:18,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:55:18,038 INFO L87 Difference]: Start difference. First operand 154 states and 192 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:55:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:18,808 INFO L93 Difference]: Finished difference Result 577 states and 766 transitions. [2024-11-08 17:55:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:55:18,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-08 17:55:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:18,818 INFO L225 Difference]: With dead ends: 577 [2024-11-08 17:55:18,818 INFO L226 Difference]: Without dead ends: 430 [2024-11-08 17:55:18,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:55:18,821 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 330 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:18,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 489 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:55:18,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-08 17:55:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 424. [2024-11-08 17:55:18,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 317 states have (on average 1.2460567823343849) internal successors, (395), 342 states have internal predecessors, (395), 46 states have call successors, (46), 43 states have call predecessors, (46), 60 states have return successors, (105), 54 states have call predecessors, (105), 46 states have call successors, (105) [2024-11-08 17:55:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 546 transitions. [2024-11-08 17:55:18,937 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 546 transitions. Word has length 45 [2024-11-08 17:55:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:18,937 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 546 transitions. [2024-11-08 17:55:18,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:55:18,940 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 546 transitions. [2024-11-08 17:55:18,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 17:55:18,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:18,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:18,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:55:18,947 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:18,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:18,947 INFO L85 PathProgramCache]: Analyzing trace with hash -2127171320, now seen corresponding path program 1 times [2024-11-08 17:55:18,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:18,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380219239] [2024-11-08 17:55:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:18,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:19,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:19,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:55:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:19,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:19,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:19,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380219239] [2024-11-08 17:55:19,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380219239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:55:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096305125] [2024-11-08 17:55:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:19,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:55:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:55:19,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:55:19,269 INFO L87 Difference]: Start difference. First operand 424 states and 546 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 17:55:19,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:19,936 INFO L93 Difference]: Finished difference Result 491 states and 633 transitions. [2024-11-08 17:55:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:55:19,937 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-08 17:55:19,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:19,941 INFO L225 Difference]: With dead ends: 491 [2024-11-08 17:55:19,942 INFO L226 Difference]: Without dead ends: 489 [2024-11-08 17:55:19,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:55:19,945 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 216 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:19,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:55:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-08 17:55:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 465. [2024-11-08 17:55:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 378 states have internal predecessors, (431), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2024-11-08 17:55:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 600 transitions. [2024-11-08 17:55:20,054 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 600 transitions. Word has length 49 [2024-11-08 17:55:20,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:20,055 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 600 transitions. [2024-11-08 17:55:20,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 17:55:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 600 transitions. [2024-11-08 17:55:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 17:55:20,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:20,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:20,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:55:20,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:20,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash 546496624, now seen corresponding path program 1 times [2024-11-08 17:55:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:20,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001282318] [2024-11-08 17:55:20,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:20,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:55:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:20,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:20,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001282318] [2024-11-08 17:55:20,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001282318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:20,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:20,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:55:20,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218638594] [2024-11-08 17:55:20,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:20,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:55:20,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:20,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:55:20,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:55:20,276 INFO L87 Difference]: Start difference. First operand 465 states and 600 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-08 17:55:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:20,690 INFO L93 Difference]: Finished difference Result 956 states and 1301 transitions. [2024-11-08 17:55:20,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:55:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 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 55 [2024-11-08 17:55:20,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:20,695 INFO L225 Difference]: With dead ends: 956 [2024-11-08 17:55:20,695 INFO L226 Difference]: Without dead ends: 498 [2024-11-08 17:55:20,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:55:20,699 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 149 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:20,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 285 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:55:20,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-08 17:55:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 474. [2024-11-08 17:55:20,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 359 states have (on average 1.2256267409470751) internal successors, (440), 387 states have internal predecessors, (440), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2024-11-08 17:55:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 609 transitions. [2024-11-08 17:55:20,778 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 609 transitions. Word has length 55 [2024-11-08 17:55:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:20,779 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 609 transitions. [2024-11-08 17:55:20,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 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) [2024-11-08 17:55:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 609 transitions. [2024-11-08 17:55:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 17:55:20,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:20,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:20,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:55:20,785 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:20,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:20,785 INFO L85 PathProgramCache]: Analyzing trace with hash 412483118, now seen corresponding path program 1 times [2024-11-08 17:55:20,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:20,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759897963] [2024-11-08 17:55:20,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:20,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:55:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:20,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:20,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759897963] [2024-11-08 17:55:20,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759897963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:20,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:55:20,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:55:20,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094712867] [2024-11-08 17:55:20,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:20,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:55:20,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:20,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:55:20,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:55:20,958 INFO L87 Difference]: Start difference. First operand 474 states and 609 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:55:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:21,359 INFO L93 Difference]: Finished difference Result 930 states and 1241 transitions. [2024-11-08 17:55:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:55:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-08 17:55:21,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:21,363 INFO L225 Difference]: With dead ends: 930 [2024-11-08 17:55:21,364 INFO L226 Difference]: Without dead ends: 463 [2024-11-08 17:55:21,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:55:21,367 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 239 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:21,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 221 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:55:21,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-08 17:55:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 452. [2024-11-08 17:55:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 342 states have (on average 1.2222222222222223) internal successors, (418), 368 states have internal predecessors, (418), 49 states have call successors, (49), 42 states have call predecessors, (49), 60 states have return successors, (110), 56 states have call predecessors, (110), 49 states have call successors, (110) [2024-11-08 17:55:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 577 transitions. [2024-11-08 17:55:21,419 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 577 transitions. Word has length 55 [2024-11-08 17:55:21,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:21,420 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 577 transitions. [2024-11-08 17:55:21,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:55:21,420 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 577 transitions. [2024-11-08 17:55:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 17:55:21,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:21,424 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:21,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:55:21,425 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:21,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:21,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1634588214, now seen corresponding path program 1 times [2024-11-08 17:55:21,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:21,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125893447] [2024-11-08 17:55:21,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 17:55:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:55:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:55:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 17:55:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:55:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125893447] [2024-11-08 17:55:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125893447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:55:21,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748726843] [2024-11-08 17:55:21,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:21,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:21,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:21,779 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:55:21,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:55:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:21,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:55:21,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:55:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:22,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:55:22,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748726843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:22,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:55:22,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2024-11-08 17:55:22,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722330860] [2024-11-08 17:55:22,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:22,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:55:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:55:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:55:22,228 INFO L87 Difference]: Start difference. First operand 452 states and 577 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-08 17:55:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:22,761 INFO L93 Difference]: Finished difference Result 853 states and 1140 transitions. [2024-11-08 17:55:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:55:22,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 97 [2024-11-08 17:55:22,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:22,766 INFO L225 Difference]: With dead ends: 853 [2024-11-08 17:55:22,767 INFO L226 Difference]: Without dead ends: 408 [2024-11-08 17:55:22,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:55:22,770 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 197 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:22,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 229 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 17:55:22,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-08 17:55:22,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 404. [2024-11-08 17:55:22,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 307 states have (on average 1.228013029315961) internal successors, (377), 327 states have internal predecessors, (377), 49 states have call successors, (49), 42 states have call predecessors, (49), 47 states have return successors, (93), 47 states have call predecessors, (93), 49 states have call successors, (93) [2024-11-08 17:55:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 519 transitions. [2024-11-08 17:55:22,844 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 519 transitions. Word has length 97 [2024-11-08 17:55:22,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:22,845 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 519 transitions. [2024-11-08 17:55:22,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-08 17:55:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 519 transitions. [2024-11-08 17:55:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 17:55:22,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:22,848 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:22,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:55:23,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:23,053 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:23,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:23,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1972086820, now seen corresponding path program 1 times [2024-11-08 17:55:23,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:23,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007103947] [2024-11-08 17:55:23,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:23,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:55:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:55:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:23,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:55:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 17:55:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:55:23,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007103947] [2024-11-08 17:55:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007103947] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:55:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222913281] [2024-11-08 17:55:23,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:23,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:23,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:23,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:55:23,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:55:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:23,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:55:23,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:55:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:55:23,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:55:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 17:55:23,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222913281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:55:23,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:55:23,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 11 [2024-11-08 17:55:23,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373501561] [2024-11-08 17:55:23,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:55:23,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:55:23,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:23,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:55:23,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:55:23,995 INFO L87 Difference]: Start difference. First operand 404 states and 519 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 17:55:25,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:25,213 INFO L93 Difference]: Finished difference Result 951 states and 1274 transitions. [2024-11-08 17:55:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 17:55:25,214 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2024-11-08 17:55:25,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:25,219 INFO L225 Difference]: With dead ends: 951 [2024-11-08 17:55:25,220 INFO L226 Difference]: Without dead ends: 597 [2024-11-08 17:55:25,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 217 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-08 17:55:25,223 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 421 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:25,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 508 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:55:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-08 17:55:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 563. [2024-11-08 17:55:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 426 states have (on average 1.2253521126760563) internal successors, (522), 453 states have internal predecessors, (522), 70 states have call successors, (70), 61 states have call predecessors, (70), 66 states have return successors, (139), 64 states have call predecessors, (139), 70 states have call successors, (139) [2024-11-08 17:55:25,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 731 transitions. [2024-11-08 17:55:25,296 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 731 transitions. Word has length 101 [2024-11-08 17:55:25,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:25,297 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 731 transitions. [2024-11-08 17:55:25,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 17:55:25,298 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 731 transitions. [2024-11-08 17:55:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 17:55:25,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:25,301 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:25,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:55:25,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:25,506 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:25,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:25,507 INFO L85 PathProgramCache]: Analyzing trace with hash -271783460, now seen corresponding path program 2 times [2024-11-08 17:55:25,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:25,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295353833] [2024-11-08 17:55:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:25,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:55:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:55:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:55:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:55:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:25,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:55:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 17:55:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 17:55:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 17:55:26,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295353833] [2024-11-08 17:55:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295353833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:55:26,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398019122] [2024-11-08 17:55:26,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:55:26,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:26,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:26,150 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:55:26,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:55:26,318 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 17:55:26,318 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:55:26,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 17:55:26,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:55:26,468 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 17:55:26,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:55:26,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398019122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:26,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:55:26,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2024-11-08 17:55:26,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965254238] [2024-11-08 17:55:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:26,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:55:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:26,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:55:26,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:55:26,475 INFO L87 Difference]: Start difference. First operand 563 states and 731 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 17:55:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:26,864 INFO L93 Difference]: Finished difference Result 1437 states and 1922 transitions. [2024-11-08 17:55:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:55:26,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2024-11-08 17:55:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:26,872 INFO L225 Difference]: With dead ends: 1437 [2024-11-08 17:55:26,872 INFO L226 Difference]: Without dead ends: 923 [2024-11-08 17:55:26,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 172 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-08 17:55:26,876 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 180 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:26,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 616 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:55:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2024-11-08 17:55:26,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 814. [2024-11-08 17:55:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 615 states have (on average 1.2097560975609756) internal successors, (744), 648 states have internal predecessors, (744), 96 states have call successors, (96), 90 states have call predecessors, (96), 102 states have return successors, (189), 95 states have call predecessors, (189), 96 states have call successors, (189) [2024-11-08 17:55:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1029 transitions. [2024-11-08 17:55:26,978 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1029 transitions. Word has length 147 [2024-11-08 17:55:26,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:26,979 INFO L471 AbstractCegarLoop]: Abstraction has 814 states and 1029 transitions. [2024-11-08 17:55:26,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 17:55:26,979 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1029 transitions. [2024-11-08 17:55:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 17:55:26,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:55:26,983 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:27,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:55:27,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:27,184 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:55:27,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:55:27,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1487937186, now seen corresponding path program 1 times [2024-11-08 17:55:27,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:55:27,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541934764] [2024-11-08 17:55:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:27,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:55:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:55:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:55:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 17:55:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:55:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:55:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:55:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 17:55:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 17:55:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 17:55:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 17:55:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:55:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 17:55:27,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:55:27,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541934764] [2024-11-08 17:55:27,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541934764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:55:27,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777304160] [2024-11-08 17:55:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:55:27,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:55:27,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:55:27,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:55:27,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:55:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:55:27,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:55:27,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:55:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 17:55:27,636 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:55:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777304160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:55:27,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:55:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2024-11-08 17:55:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053050735] [2024-11-08 17:55:27,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:55:27,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:55:27,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:55:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:55:27,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:55:27,638 INFO L87 Difference]: Start difference. First operand 814 states and 1029 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 17:55:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:55:27,702 INFO L93 Difference]: Finished difference Result 1116 states and 1400 transitions. [2024-11-08 17:55:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:55:27,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 147 [2024-11-08 17:55:27,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:55:27,704 INFO L225 Difference]: With dead ends: 1116 [2024-11-08 17:55:27,704 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:55:27,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:55:27,708 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:55:27,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:55:27,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:55:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:55:27,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:55:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:55:27,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2024-11-08 17:55:27,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:55:27,711 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:55:27,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 17:55:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:55:27,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:55:27,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:55:27,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:55:27,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 17:55:27,923 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:55:27,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:55:30,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:55:30,622 WARN L162 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 17:55:30,641 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 17:55:30,657 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))))) [2024-11-08 17:55:30,665 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-08 17:55:30,670 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-08 17:55:30,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:55:30 BoogieIcfgContainer [2024-11-08 17:55:30,679 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:55:30,680 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:55:30,680 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:55:30,680 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:55:30,680 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:55:16" (3/4) ... [2024-11-08 17:55:30,684 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:55:30,691 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 17:55:30,691 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 17:55:30,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 17:55:30,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 17:55:30,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 17:55:30,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 17:55:30,692 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 17:55:30,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-08 17:55:30,693 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-08 17:55:30,707 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-08 17:55:30,708 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 17:55:30,708 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 17:55:30,709 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:55:30,709 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:55:30,860 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:55:30,861 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:55:30,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:55:30,861 INFO L158 Benchmark]: Toolchain (without parser) took 16059.05ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 105.1MB in the beginning and 191.8MB in the end (delta: -86.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,862 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:55:30,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.47ms. Allocated memory is still 140.5MB. Free memory was 105.1MB in the beginning and 83.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.54ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,863 INFO L158 Benchmark]: Boogie Preprocessor took 85.62ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,863 INFO L158 Benchmark]: RCFGBuilder took 569.38ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 99.4MB in the end (delta: -21.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,864 INFO L158 Benchmark]: TraceAbstraction took 14485.06ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 98.7MB in the beginning and 200.2MB in the end (delta: -101.5MB). Peak memory consumption was 135.6MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,864 INFO L158 Benchmark]: Witness Printer took 181.31ms. Allocated memory is still 247.5MB. Free memory was 200.2MB in the beginning and 191.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:55:30,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.47ms. Allocated memory is still 140.5MB. Free memory was 105.1MB in the beginning and 83.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.54ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.62ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 78.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 569.38ms. Allocated memory is still 140.5MB. Free memory was 78.2MB in the beginning and 99.4MB in the end (delta: -21.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14485.06ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 98.7MB in the beginning and 200.2MB in the end (delta: -101.5MB). Peak memory consumption was 135.6MB. Max. memory is 16.1GB. * Witness Printer took 181.31ms. Allocated memory is still 247.5MB. Free memory was 200.2MB in the beginning and 191.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 347]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] - GenericResultAtLocation [Line: 545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] * 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: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2025 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1989 mSDsluCounter, 3658 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2531 mSDsCounter, 563 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2431 IncrementalHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 563 mSolverCounterUnsat, 1127 mSDtfsCounter, 2431 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 860 GetRequests, 731 SyntacticMatches, 12 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=814occurred in iteration=11, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1288 NumberOfCodeBlocks, 1288 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1372 ConstructedInterpolants, 0 QuantifiedInterpolants, 2488 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1524 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 486/548 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: 360]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 245]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 135]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 443]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 913]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 111]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: ((((((1 == systemActive) && (2 <= \old(waterLevel))) || (\old(pumpRunning) == 0)) && (((2 <= waterLevel) && (waterLevel <= \old(waterLevel))) || (((pumpRunning == 0) && (1 <= waterLevel)) && (waterLevel <= \old(waterLevel))))) && ((\old(pumpRunning) != 0) || ((1 == systemActive) && (\old(waterLevel) == waterLevel)))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 143]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 <= waterLevel) && (1 == systemActive)) || ((1 == systemActive) && (waterLevel == 1)))) Ensures: ((((1 == systemActive) && (\old(pumpRunning) == 0)) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 431]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((pumpRunning == 0) && (1 == systemActive)) && (1 <= \old(waterLevel))))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 169]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((1 == systemActive) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 253]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: (((1 == systemActive) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:55:30,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8ad4b69-14f9-4392-be5c-5d9462c5e73c/bin/uautomizer-verify-jihMAELWvX/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