./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:05:53,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:05:53,192 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:05:53,197 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:05:53,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:05:53,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:05:53,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:05:53,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:05:53,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:05:53,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:05:53,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:05:53,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:05:53,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:05:53,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:05:53,222 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:05:53,222 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:05:53,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:05:53,224 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:53,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:05:53,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:53,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:05:53,225 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2024-12-02 06:05:53,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:05:53,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:05:53,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:05:53,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:05:53,476 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:05:53,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-12-02 06:05:56,149 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/data/e769fdc1c/67ac1cb3dc8e4f69b80ee0de9f1281bc/FLAG7cc4ac99b [2024-12-02 06:05:56,378 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:05:56,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2024-12-02 06:05:56,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/data/e769fdc1c/67ac1cb3dc8e4f69b80ee0de9f1281bc/FLAG7cc4ac99b [2024-12-02 06:05:56,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/data/e769fdc1c/67ac1cb3dc8e4f69b80ee0de9f1281bc [2024-12-02 06:05:56,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:05:56,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:05:56,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:05:56,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:05:56,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:05:56,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2797a78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56, skipping insertion in model container [2024-12-02 06:05:56,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:05:56,661 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_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2024-12-02 06:05:56,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:05:56,689 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:05:56,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] [2024-12-02 06:05:56,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] [2024-12-02 06:05:56,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] [2024-12-02 06:05:56,737 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_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2024-12-02 06:05:56,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:05:56,760 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:05:56,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56 WrapperNode [2024-12-02 06:05:56,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:05:56,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:05:56,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:05:56,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:05:56,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,797 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 212 [2024-12-02 06:05:56,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:05:56,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:05:56,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:05:56,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:05:56,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,808 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,821 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:05:56,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,826 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:05:56,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:05:56,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:05:56,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:05:56,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (1/1) ... [2024-12-02 06:05:56,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:05:56,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:05:56,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:05:56,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:05:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:05:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-12-02 06:05:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:05:56,875 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-12-02 06:05:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-12-02 06:05:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:05:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:05:56,936 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:05:56,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:05:57,156 INFO L? ?]: Removed 49 outVars from TransFormulas that were not future-live. [2024-12-02 06:05:57,156 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:05:57,167 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:05:57,167 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 06:05:57,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:57 BoogieIcfgContainer [2024-12-02 06:05:57,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:05:57,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:05:57,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:05:57,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:05:57,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:05:56" (1/3) ... [2024-12-02 06:05:57,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e28db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:57, skipping insertion in model container [2024-12-02 06:05:57,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:05:56" (2/3) ... [2024-12-02 06:05:57,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e28db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:05:57, skipping insertion in model container [2024-12-02 06:05:57,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:57" (3/3) ... [2024-12-02 06:05:57,176 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2024-12-02 06:05:57,190 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:05:57,191 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product50.cil.c that has 8 procedures, 87 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 06:05:57,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:05:57,249 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;@4195bb2f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:05:57,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:05:57,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 75 states have internal predecessors, (94), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 06:05:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 06:05:57,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:57,261 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:57,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:57,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:57,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2135562747, now seen corresponding path program 1 times [2024-12-02 06:05:57,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:57,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829283440] [2024-12-02 06:05:57,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:57,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:57,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:57,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829283440] [2024-12-02 06:05:57,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829283440] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:57,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:57,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 06:05:57,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405519670] [2024-12-02 06:05:57,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:57,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:05:57,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:57,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:05:57,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:05:57,422 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 75 states have internal predecessors, (94), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:57,448 INFO L93 Difference]: Finished difference Result 166 states and 227 transitions. [2024-12-02 06:05:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:05:57,449 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 06:05:57,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:57,455 INFO L225 Difference]: With dead ends: 166 [2024-12-02 06:05:57,455 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 06:05:57,458 INFO L434 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 [2024-12-02 06:05:57,461 INFO L435 NwaCegarLoop]: 110 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, 110 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 [2024-12-02 06:05:57,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:57,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 06:05:57,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-12-02 06:05:57,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 67 states have internal predecessors, (80), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 06:05:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2024-12-02 06:05:57,490 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 25 [2024-12-02 06:05:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:57,490 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2024-12-02 06:05:57,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2024-12-02 06:05:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 06:05:57,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:57,493 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:57,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:05:57,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:57,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash 471937727, now seen corresponding path program 1 times [2024-12-02 06:05:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250362881] [2024-12-02 06:05:57,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:57,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:57,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250362881] [2024-12-02 06:05:57,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250362881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:57,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:57,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250168006] [2024-12-02 06:05:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:57,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:57,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:57,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:57,598 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:57,612 INFO L93 Difference]: Finished difference Result 123 states and 159 transitions. [2024-12-02 06:05:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 06:05:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:57,614 INFO L225 Difference]: With dead ends: 123 [2024-12-02 06:05:57,614 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 06:05:57,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:57,615 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 13 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:57,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:57,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 06:05:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-12-02 06:05:57,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 06:05:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2024-12-02 06:05:57,622 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 25 [2024-12-02 06:05:57,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:57,622 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2024-12-02 06:05:57,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,622 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2024-12-02 06:05:57,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 06:05:57,623 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:57,623 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:57,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:05:57,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:57,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:57,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1720828323, now seen corresponding path program 1 times [2024-12-02 06:05:57,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:57,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561524792] [2024-12-02 06:05:57,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:57,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:57,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:57,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561524792] [2024-12-02 06:05:57,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561524792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:57,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:57,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:05:57,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036510397] [2024-12-02 06:05:57,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:57,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:05:57,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:57,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:05:57,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:57,700 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:57,720 INFO L93 Difference]: Finished difference Result 133 states and 174 transitions. [2024-12-02 06:05:57,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:05:57,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-12-02 06:05:57,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:57,721 INFO L225 Difference]: With dead ends: 133 [2024-12-02 06:05:57,722 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 06:05:57,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:05:57,723 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 84 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:57,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:57,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 06:05:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-12-02 06:05:57,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 06:05:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2024-12-02 06:05:57,732 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2024-12-02 06:05:57,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:57,732 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2024-12-02 06:05:57,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:05:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2024-12-02 06:05:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 06:05:57,733 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:57,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:57,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:05:57,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:57,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:57,734 INFO L85 PathProgramCache]: Analyzing trace with hash -617661048, now seen corresponding path program 1 times [2024-12-02 06:05:57,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:57,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194601976] [2024-12-02 06:05:57,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:57,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:57,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:57,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194601976] [2024-12-02 06:05:57,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194601976] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:57,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:57,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:57,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612768990] [2024-12-02 06:05:57,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:57,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:57,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:57,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:57,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:57,819 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:05:58,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,016 INFO L93 Difference]: Finished difference Result 210 states and 268 transitions. [2024-12-02 06:05:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 06:05:58,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2024-12-02 06:05:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,018 INFO L225 Difference]: With dead ends: 210 [2024-12-02 06:05:58,018 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 06:05:58,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:05:58,019 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 188 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 289 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:05:58,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 06:05:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2024-12-02 06:05:58,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 117 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:05:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2024-12-02 06:05:58,040 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 40 [2024-12-02 06:05:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,040 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2024-12-02 06:05:58,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:05:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2024-12-02 06:05:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 06:05:58,041 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,041 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:05:58,042 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1729104008, now seen corresponding path program 1 times [2024-12-02 06:05:58,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457748638] [2024-12-02 06:05:58,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457748638] [2024-12-02 06:05:58,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457748638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644618449] [2024-12-02 06:05:58,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,127 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,155 INFO L93 Difference]: Finished difference Result 278 states and 348 transitions. [2024-12-02 06:05:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:58,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 06:05:58,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,157 INFO L225 Difference]: With dead ends: 278 [2024-12-02 06:05:58,157 INFO L226 Difference]: Without dead ends: 144 [2024-12-02 06:05:58,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,158 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 338 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-12-02 06:05:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-12-02 06:05:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 120 states have internal predecessors, (144), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:05:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 177 transitions. [2024-12-02 06:05:58,175 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 177 transitions. Word has length 44 [2024-12-02 06:05:58,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,175 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 177 transitions. [2024-12-02 06:05:58,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 177 transitions. [2024-12-02 06:05:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 06:05:58,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,176 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:05:58,177 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1748214838, now seen corresponding path program 1 times [2024-12-02 06:05:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041664397] [2024-12-02 06:05:58,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041664397] [2024-12-02 06:05:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041664397] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383908026] [2024-12-02 06:05:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,260 INFO L87 Difference]: Start difference. First operand 144 states and 177 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,298 INFO L93 Difference]: Finished difference Result 283 states and 356 transitions. [2024-12-02 06:05:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:58,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 06:05:58,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,300 INFO L225 Difference]: With dead ends: 283 [2024-12-02 06:05:58,300 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 06:05:58,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:58,301 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 86 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 252 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:58,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 06:05:58,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-12-02 06:05:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2695652173913043) internal successors, (146), 122 states have internal predecessors, (146), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2024-12-02 06:05:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2024-12-02 06:05:58,318 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 44 [2024-12-02 06:05:58,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,318 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2024-12-02 06:05:58,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2024-12-02 06:05:58,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 06:05:58,319 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,319 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:05:58,320 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1967069556, now seen corresponding path program 1 times [2024-12-02 06:05:58,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314102539] [2024-12-02 06:05:58,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314102539] [2024-12-02 06:05:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314102539] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:05:58,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371870616] [2024-12-02 06:05:58,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:05:58,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:05:58,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:05:58,399 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,497 INFO L93 Difference]: Finished difference Result 451 states and 573 transitions. [2024-12-02 06:05:58,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:05:58,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2024-12-02 06:05:58,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,500 INFO L225 Difference]: With dead ends: 451 [2024-12-02 06:05:58,500 INFO L226 Difference]: Without dead ends: 312 [2024-12-02 06:05:58,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:05:58,501 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 120 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 292 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:05:58,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-12-02 06:05:58,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 196. [2024-12-02 06:05:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 153 states have (on average 1.2549019607843137) internal successors, (192), 162 states have internal predecessors, (192), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-12-02 06:05:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 238 transitions. [2024-12-02 06:05:58,529 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 238 transitions. Word has length 44 [2024-12-02 06:05:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,529 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 238 transitions. [2024-12-02 06:05:58,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:05:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 238 transitions. [2024-12-02 06:05:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 06:05:58,530 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,530 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:05:58,531 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash -985537248, now seen corresponding path program 1 times [2024-12-02 06:05:58,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555218943] [2024-12-02 06:05:58,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555218943] [2024-12-02 06:05:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555218943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600058217] [2024-12-02 06:05:58,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,622 INFO L87 Difference]: Start difference. First operand 196 states and 238 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:05:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,694 INFO L93 Difference]: Finished difference Result 383 states and 467 transitions. [2024-12-02 06:05:58,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 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 46 [2024-12-02 06:05:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,696 INFO L225 Difference]: With dead ends: 383 [2024-12-02 06:05:58,696 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:05:58,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:58,697 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 34 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 323 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:58,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:05:58,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-12-02 06:05:58,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 151 states have (on average 1.2450331125827814) internal successors, (188), 160 states have internal predecessors, (188), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-12-02 06:05:58,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 234 transitions. [2024-12-02 06:05:58,717 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 234 transitions. Word has length 46 [2024-12-02 06:05:58,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,718 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 234 transitions. [2024-12-02 06:05:58,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:05:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 234 transitions. [2024-12-02 06:05:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 06:05:58,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,719 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:05:58,719 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash -836466098, now seen corresponding path program 1 times [2024-12-02 06:05:58,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607855009] [2024-12-02 06:05:58,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607855009] [2024-12-02 06:05:58,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607855009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414765348] [2024-12-02 06:05:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,796 INFO L87 Difference]: Start difference. First operand 194 states and 234 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:05:58,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:58,856 INFO L93 Difference]: Finished difference Result 335 states and 408 transitions. [2024-12-02 06:05:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:58,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-12-02 06:05:58,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:58,858 INFO L225 Difference]: With dead ends: 335 [2024-12-02 06:05:58,858 INFO L226 Difference]: Without dead ends: 194 [2024-12-02 06:05:58,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:58,858 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 54 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:58,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 439 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-12-02 06:05:58,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-12-02 06:05:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 151 states have (on average 1.2251655629139073) internal successors, (185), 160 states have internal predecessors, (185), 20 states have call successors, (20), 19 states have call predecessors, (20), 22 states have return successors, (24), 20 states have call predecessors, (24), 20 states have call successors, (24) [2024-12-02 06:05:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 229 transitions. [2024-12-02 06:05:58,873 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 229 transitions. Word has length 48 [2024-12-02 06:05:58,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:58,873 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 229 transitions. [2024-12-02 06:05:58,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 06:05:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 229 transitions. [2024-12-02 06:05:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 06:05:58,874 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:58,874 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:58,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:05:58,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:58,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2056161146, now seen corresponding path program 1 times [2024-12-02 06:05:58,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:58,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805486496] [2024-12-02 06:05:58,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:58,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:58,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:58,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:58,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805486496] [2024-12-02 06:05:58,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805486496] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:58,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:58,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:58,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097347936] [2024-12-02 06:05:58,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:58,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:58,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:58,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:58,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:58,941 INFO L87 Difference]: Start difference. First operand 194 states and 229 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:59,021 INFO L93 Difference]: Finished difference Result 462 states and 567 transitions. [2024-12-02 06:05:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:59,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 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 50 [2024-12-02 06:05:59,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:59,025 INFO L225 Difference]: With dead ends: 462 [2024-12-02 06:05:59,025 INFO L226 Difference]: Without dead ends: 321 [2024-12-02 06:05:59,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 06:05:59,026 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 68 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:59,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 384 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-12-02 06:05:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 298. [2024-12-02 06:05:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 231 states have (on average 1.2121212121212122) internal successors, (280), 244 states have internal predecessors, (280), 31 states have call successors, (31), 29 states have call predecessors, (31), 35 states have return successors, (41), 32 states have call predecessors, (41), 31 states have call successors, (41) [2024-12-02 06:05:59,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 352 transitions. [2024-12-02 06:05:59,056 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 352 transitions. Word has length 50 [2024-12-02 06:05:59,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:59,057 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 352 transitions. [2024-12-02 06:05:59,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,057 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 352 transitions. [2024-12-02 06:05:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 06:05:59,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:59,057 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:59,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:05:59,058 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:59,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1922147640, now seen corresponding path program 1 times [2024-12-02 06:05:59,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:59,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577951864] [2024-12-02 06:05:59,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:59,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:59,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577951864] [2024-12-02 06:05:59,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577951864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:59,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:59,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:05:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025180634] [2024-12-02 06:05:59,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:59,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:05:59,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:59,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:05:59,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:05:59,105 INFO L87 Difference]: Start difference. First operand 298 states and 352 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:59,142 INFO L93 Difference]: Finished difference Result 540 states and 645 transitions. [2024-12-02 06:05:59,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:05:59,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 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 50 [2024-12-02 06:05:59,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:59,144 INFO L225 Difference]: With dead ends: 540 [2024-12-02 06:05:59,144 INFO L226 Difference]: Without dead ends: 295 [2024-12-02 06:05:59,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:05:59,145 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:59,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 256 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-12-02 06:05:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-12-02 06:05:59,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 228 states have (on average 1.206140350877193) internal successors, (275), 241 states have internal predecessors, (275), 31 states have call successors, (31), 29 states have call predecessors, (31), 35 states have return successors, (41), 32 states have call predecessors, (41), 31 states have call successors, (41) [2024-12-02 06:05:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 347 transitions. [2024-12-02 06:05:59,176 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 347 transitions. Word has length 50 [2024-12-02 06:05:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:59,176 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 347 transitions. [2024-12-02 06:05:59,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 347 transitions. [2024-12-02 06:05:59,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-02 06:05:59,177 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:59,177 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:59,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:05:59,178 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:59,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2141002358, now seen corresponding path program 1 times [2024-12-02 06:05:59,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:59,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860353356] [2024-12-02 06:05:59,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:05:59,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:59,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860353356] [2024-12-02 06:05:59,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860353356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:59,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:59,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:59,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127134186] [2024-12-02 06:05:59,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:59,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:59,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:59,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:59,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:59,245 INFO L87 Difference]: Start difference. First operand 295 states and 347 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:59,288 INFO L93 Difference]: Finished difference Result 520 states and 617 transitions. [2024-12-02 06:05:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:59,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 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 50 [2024-12-02 06:05:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:59,291 INFO L225 Difference]: With dead ends: 520 [2024-12-02 06:05:59,291 INFO L226 Difference]: Without dead ends: 278 [2024-12-02 06:05:59,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:59,292 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:59,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-12-02 06:05:59,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-12-02 06:05:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 216 states have (on average 1.1944444444444444) internal successors, (258), 228 states have internal predecessors, (258), 29 states have call successors, (29), 28 states have call predecessors, (29), 32 states have return successors, (37), 29 states have call predecessors, (37), 29 states have call successors, (37) [2024-12-02 06:05:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 324 transitions. [2024-12-02 06:05:59,319 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 324 transitions. Word has length 50 [2024-12-02 06:05:59,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:59,319 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 324 transitions. [2024-12-02 06:05:59,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 06:05:59,319 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 324 transitions. [2024-12-02 06:05:59,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 06:05:59,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:59,320 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:59,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:05:59,321 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:59,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:59,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1269739056, now seen corresponding path program 1 times [2024-12-02 06:05:59,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:59,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268316516] [2024-12-02 06:05:59,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 06:05:59,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:59,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268316516] [2024-12-02 06:05:59,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268316516] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:05:59,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:05:59,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:05:59,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859899720] [2024-12-02 06:05:59,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:05:59,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:05:59,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:05:59,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:05:59,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:59,400 INFO L87 Difference]: Start difference. First operand 278 states and 324 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:05:59,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:05:59,440 INFO L93 Difference]: Finished difference Result 509 states and 598 transitions. [2024-12-02 06:05:59,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:05:59,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-12-02 06:05:59,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:05:59,443 INFO L225 Difference]: With dead ends: 509 [2024-12-02 06:05:59,443 INFO L226 Difference]: Without dead ends: 284 [2024-12-02 06:05:59,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:05:59,444 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:05:59,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 337 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:05:59,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-12-02 06:05:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2024-12-02 06:05:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 222 states have (on average 1.1891891891891893) internal successors, (264), 234 states have internal predecessors, (264), 29 states have call successors, (29), 28 states have call predecessors, (29), 32 states have return successors, (37), 29 states have call predecessors, (37), 29 states have call successors, (37) [2024-12-02 06:05:59,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 330 transitions. [2024-12-02 06:05:59,470 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 330 transitions. Word has length 79 [2024-12-02 06:05:59,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:05:59,470 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 330 transitions. [2024-12-02 06:05:59,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 06:05:59,470 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 330 transitions. [2024-12-02 06:05:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 06:05:59,471 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:05:59,471 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:05:59,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:05:59,471 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:05:59,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:05:59,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1031083534, now seen corresponding path program 1 times [2024-12-02 06:05:59,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:05:59,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163658659] [2024-12-02 06:05:59,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:05:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 06:05:59,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:05:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163658659] [2024-12-02 06:05:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163658659] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:05:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986589464] [2024-12-02 06:05:59,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:05:59,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:05:59,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:05:59,698 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:05:59,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:05:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:05:59,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 06:05:59,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:05:59,975 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 06:05:59,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:06:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 06:06:00,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986589464] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:06:00,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:06:00,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 15 [2024-12-02 06:06:00,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320425996] [2024-12-02 06:06:00,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:06:00,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 06:06:00,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:06:00,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 06:06:00,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-12-02 06:06:00,277 INFO L87 Difference]: Start difference. First operand 284 states and 330 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-12-02 06:06:00,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:06:00,660 INFO L93 Difference]: Finished difference Result 527 states and 640 transitions. [2024-12-02 06:06:00,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 06:06:00,660 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 79 [2024-12-02 06:06:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:06:00,661 INFO L225 Difference]: With dead ends: 527 [2024-12-02 06:06:00,661 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 06:06:00,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 151 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=419, Unknown=0, NotChecked=0, Total=650 [2024-12-02 06:06:00,662 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 322 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:06:00,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 335 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:06:00,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 06:06:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 06:06:00,663 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) [2024-12-02 06:06:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 06:06:00,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2024-12-02 06:06:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:06:00,664 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:06:00,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 13 states have internal predecessors, (95), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2024-12-02 06:06:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:06:00,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 06:06:00,667 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 06:06:00,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:06:00,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 06:06:00,869 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:06:00,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 06:06:02,939 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 06:06:02,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:06:02 BoogieIcfgContainer [2024-12-02 06:06:02,950 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 06:06:02,951 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:06:02,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:06:02,951 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:06:02,951 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:05:57" (3/4) ... [2024-12-02 06:06:02,953 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 06:06:02,956 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-12-02 06:06:02,956 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-12-02 06:06:02,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-12-02 06:06:02,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-12-02 06:06:02,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-12-02 06:06:02,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-12-02 06:06:02,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-12-02 06:06:02,961 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-12-02 06:06:02,962 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 06:06:02,962 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 06:06:02,962 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:06:02,962 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 06:06:03,031 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:06:03,031 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 06:06:03,031 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:06:03,032 INFO L158 Benchmark]: Toolchain (without parser) took 6629.26ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 116.3MB in the beginning and 217.0MB in the end (delta: -100.7MB). Peak memory consumption was 81.1MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,032 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:03,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.25ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 97.3MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.23ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:03,033 INFO L158 Benchmark]: Boogie Preprocessor took 34.85ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,033 INFO L158 Benchmark]: RCFGBuilder took 334.74ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 76.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,034 INFO L158 Benchmark]: TraceAbstraction took 5780.58ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 75.9MB in the beginning and 225.1MB in the end (delta: -149.2MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,034 INFO L158 Benchmark]: Witness Printer took 80.74ms. Allocated memory is still 327.2MB. Free memory was 225.1MB in the beginning and 217.0MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:06:03,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.25ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 97.3MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.23ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.85ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 93.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 334.74ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 76.4MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5780.58ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 75.9MB in the beginning and 225.1MB in the end (delta: -149.2MB). Peak memory consumption was 149.0MB. Max. memory is 16.1GB. * Witness Printer took 80.74ms. Allocated memory is still 327.2MB. Free memory was 225.1MB in the beginning and 217.0MB in the end (delta: 8.1MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [415] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 562]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] - GenericResultAtLocation [Line: 664]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [664] - GenericResultAtLocation [Line: 699]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [699] - GenericResultAtLocation [Line: 708]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [708] - GenericResultAtLocation [Line: 776]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [776] * 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: 704]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 977 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 969 mSDsluCounter, 3946 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2581 mSDsCounter, 134 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 573 IncrementalHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 134 mSolverCounterUnsat, 1365 mSDtfsCounter, 573 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 185 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=10, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 145 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 733 NumberOfCodeBlocks, 733 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 796 ConstructedInterpolants, 0 QuantifiedInterpolants, 1474 SizeOfPredicates, 2 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 16 InterpolantComputations, 13 PerfectInterpolantSequences, 55/80 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 720]: Loop Invariant Derived loop invariant: (((((1 == systemActive) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1)) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 719]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 06:06:03,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ca2846a-6751-4caa-8e8f-9cddd9a71e24/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE