./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ --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 ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:36:54,440 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:36:54,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:36:54,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:36:54,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:36:54,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:36:54,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:36:54,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:36:54,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:36:54,611 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:36:54,612 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:36:54,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:36:54,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:36:54,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:36:54,615 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:36:54,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:36:54,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:36:54,617 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:36:54,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:36:54,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:36:54,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:36:54,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:36:54,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:36:54,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:36:54,620 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:36:54,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:36:54,621 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:36:54,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:36:54,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:36:54,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:36:54,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:36:54,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:36:54,625 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:36:54,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:36:54,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:36:54,626 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:36:54,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:36:54,626 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:36:54,626 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:36:54,627 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:36:54,627 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:36:54,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:36:54,628 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2023-11-23 22:36:54,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:36:54,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:36:54,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:36:54,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:36:54,938 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:36:54,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2023-11-23 22:36:57,929 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:36:58,205 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:36:58,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2023-11-23 22:36:58,222 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/data/f92343e85/9b16c30d73fd4bba99920da78b414926/FLAGe58548456 [2023-11-23 22:36:58,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/data/f92343e85/9b16c30d73fd4bba99920da78b414926 [2023-11-23 22:36:58,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:36:58,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:36:58,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:36:58,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:36:58,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:36:58,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3366fc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58, skipping insertion in model container [2023-11-23 22:36:58,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,331 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:36:58,500 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2023-11-23 22:36:58,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:36:58,681 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:36:58,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-23 22:36:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [58] [2023-11-23 22:36:58,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [99] [2023-11-23 22:36:58,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [137] [2023-11-23 22:36:58,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [331] [2023-11-23 22:36:58,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [401] [2023-11-23 22:36:58,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [498] [2023-11-23 22:36:58,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] [2023-11-23 22:36:58,708 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2023-11-23 22:36:58,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:36:58,838 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:36:58,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58 WrapperNode [2023-11-23 22:36:58,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:36:58,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:36:58,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:36:58,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:36:58,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,914 INFO L138 Inliner]: procedures = 55, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 197 [2023-11-23 22:36:58,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:36:58,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:36:58,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:36:58,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:36:58,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,937 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,955 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:36:58,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:36:58,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:36:58,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:36:58,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:36:58,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (1/1) ... [2023-11-23 22:36:58,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:36:59,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:36:59,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:36:59,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:36:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:36:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 22:36:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 22:36:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 22:36:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 22:36:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 22:36:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 22:36:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 22:36:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 22:36:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:36:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:36:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 22:36:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 22:36:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:36:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 22:36:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 22:36:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:36:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:36:59,135 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:36:59,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:36:59,464 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:36:59,615 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:36:59,615 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:36:59,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:59 BoogieIcfgContainer [2023-11-23 22:36:59,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:36:59,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:36:59,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:36:59,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:36:59,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:36:58" (1/3) ... [2023-11-23 22:36:59,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb9ee2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:59, skipping insertion in model container [2023-11-23 22:36:59,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:36:58" (2/3) ... [2023-11-23 22:36:59,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb9ee2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:36:59, skipping insertion in model container [2023-11-23 22:36:59,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:59" (3/3) ... [2023-11-23 22:36:59,627 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2023-11-23 22:36:59,649 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:36:59,649 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:36:59,701 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:36:59,708 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@705d4476, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:36:59,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:36:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:36:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:36:59,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:36:59,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:59,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:36:59,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash -485112533, now seen corresponding path program 1 times [2023-11-23 22:36:59,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:59,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498340414] [2023-11-23 22:36:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:59,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:36:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:59,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:59,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498340414] [2023-11-23 22:36:59,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498340414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:59,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:59,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:36:59,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113941566] [2023-11-23 22:36:59,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:00,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:37:00,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:37:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:37:00,047 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:00,151 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2023-11-23 22:37:00,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:37:00,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 22:37:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:00,165 INFO L225 Difference]: With dead ends: 134 [2023-11-23 22:37:00,166 INFO L226 Difference]: Without dead ends: 63 [2023-11-23 22:37:00,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:37:00,176 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:00,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-23 22:37:00,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-23 22:37:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:37:00,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-11-23 22:37:00,245 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 17 [2023-11-23 22:37:00,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:00,246 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-11-23 22:37:00,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-11-23 22:37:00,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:37:00,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:00,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:00,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:37:00,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:00,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 62804686, now seen corresponding path program 1 times [2023-11-23 22:37:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:00,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855807215] [2023-11-23 22:37:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:00,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:37:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:00,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855807215] [2023-11-23 22:37:00,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855807215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:00,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:00,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362402927] [2023-11-23 22:37:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:00,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,426 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:00,467 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-11-23 22:37:00,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:00,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-23 22:37:00,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:00,470 INFO L225 Difference]: With dead ends: 99 [2023-11-23 22:37:00,470 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 22:37:00,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,473 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 11 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:00,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 115 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 22:37:00,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 22:37:00,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 states have internal predecessors, (57), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:37:00,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-11-23 22:37:00,484 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 18 [2023-11-23 22:37:00,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:00,484 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-23 22:37:00,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-11-23 22:37:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 22:37:00,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:00,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:00,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:37:00,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:00,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1754293312, now seen corresponding path program 1 times [2023-11-23 22:37:00,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:00,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461716662] [2023-11-23 22:37:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:00,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:00,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461716662] [2023-11-23 22:37:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461716662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:00,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925646727] [2023-11-23 22:37:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:00,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:00,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:00,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,593 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:00,625 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2023-11-23 22:37:00,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:00,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-23 22:37:00,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:00,628 INFO L225 Difference]: With dead ends: 108 [2023-11-23 22:37:00,628 INFO L226 Difference]: Without dead ends: 55 [2023-11-23 22:37:00,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,631 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 70 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:00,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 62 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-23 22:37:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-23 22:37:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.435897435897436) internal successors, (56), 46 states have internal predecessors, (56), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 22:37:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2023-11-23 22:37:00,643 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 21 [2023-11-23 22:37:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:00,643 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2023-11-23 22:37:00,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2023-11-23 22:37:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 22:37:00,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:00,645 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:00,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:37:00,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:00,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash 472757893, now seen corresponding path program 1 times [2023-11-23 22:37:00,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:00,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195723020] [2023-11-23 22:37:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:00,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 22:37:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 22:37:00,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:00,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195723020] [2023-11-23 22:37:00,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195723020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:00,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:00,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:00,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217781550] [2023-11-23 22:37:00,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:00,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,733 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:00,792 INFO L93 Difference]: Finished difference Result 147 states and 201 transitions. [2023-11-23 22:37:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:00,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-23 22:37:00,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:00,795 INFO L225 Difference]: With dead ends: 147 [2023-11-23 22:37:00,795 INFO L226 Difference]: Without dead ends: 94 [2023-11-23 22:37:00,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:00,797 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 57 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:00,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 123 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-23 22:37:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-11-23 22:37:00,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.393939393939394) internal successors, (92), 73 states have internal predecessors, (92), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-11-23 22:37:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2023-11-23 22:37:00,815 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 28 [2023-11-23 22:37:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:00,816 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2023-11-23 22:37:00,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2023-11-23 22:37:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 22:37:00,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:00,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:00,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:37:00,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:00,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:00,819 INFO L85 PathProgramCache]: Analyzing trace with hash -846459975, now seen corresponding path program 1 times [2023-11-23 22:37:00,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381698272] [2023-11-23 22:37:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 22:37:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:01,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381698272] [2023-11-23 22:37:01,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381698272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:01,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:01,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419422050] [2023-11-23 22:37:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:01,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:01,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:01,016 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:01,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:01,251 INFO L93 Difference]: Finished difference Result 224 states and 311 transitions. [2023-11-23 22:37:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-23 22:37:01,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:01,260 INFO L225 Difference]: With dead ends: 224 [2023-11-23 22:37:01,261 INFO L226 Difference]: Without dead ends: 222 [2023-11-23 22:37:01,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:01,266 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 115 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:01,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 125 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:37:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-23 22:37:01,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 220. [2023-11-23 22:37:01,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 159 states have (on average 1.3773584905660377) internal successors, (219), 172 states have internal predecessors, (219), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (56), 32 states have call predecessors, (56), 30 states have call successors, (56) [2023-11-23 22:37:01,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 305 transitions. [2023-11-23 22:37:01,336 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 305 transitions. Word has length 33 [2023-11-23 22:37:01,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:01,337 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 305 transitions. [2023-11-23 22:37:01,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:37:01,338 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 305 transitions. [2023-11-23 22:37:01,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:37:01,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:01,355 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 22:37:01,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:37:01,355 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:01,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:01,356 INFO L85 PathProgramCache]: Analyzing trace with hash -7506197, now seen corresponding path program 1 times [2023-11-23 22:37:01,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:01,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188831138] [2023-11-23 22:37:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:01,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:37:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 22:37:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 22:37:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:01,613 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 22:37:01,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:01,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188831138] [2023-11-23 22:37:01,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188831138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:01,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:01,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:37:01,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238058207] [2023-11-23 22:37:01,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:01,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:01,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:01,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:01,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:01,616 INFO L87 Difference]: Start difference. First operand 220 states and 305 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:37:01,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:01,901 INFO L93 Difference]: Finished difference Result 498 states and 714 transitions. [2023-11-23 22:37:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:01,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2023-11-23 22:37:01,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:01,905 INFO L225 Difference]: With dead ends: 498 [2023-11-23 22:37:01,905 INFO L226 Difference]: Without dead ends: 280 [2023-11-23 22:37:01,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:01,908 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 62 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:01,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 183 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:37:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-11-23 22:37:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 224. [2023-11-23 22:37:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 163 states have (on average 1.3680981595092025) internal successors, (223), 176 states have internal predecessors, (223), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (56), 32 states have call predecessors, (56), 30 states have call successors, (56) [2023-11-23 22:37:01,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 309 transitions. [2023-11-23 22:37:01,948 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 309 transitions. Word has length 62 [2023-11-23 22:37:01,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:01,949 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 309 transitions. [2023-11-23 22:37:01,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:37:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 309 transitions. [2023-11-23 22:37:01,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:37:01,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:01,955 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 22:37:01,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:37:01,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:01,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2056894039, now seen corresponding path program 1 times [2023-11-23 22:37:01,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:01,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036050272] [2023-11-23 22:37:01,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:01,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:37:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 22:37:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 22:37:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 22:37:02,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:02,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036050272] [2023-11-23 22:37:02,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036050272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:02,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:02,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:37:02,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128268389] [2023-11-23 22:37:02,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:02,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:02,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:37:02,150 INFO L87 Difference]: Start difference. First operand 224 states and 309 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:37:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:02,431 INFO L93 Difference]: Finished difference Result 516 states and 756 transitions. [2023-11-23 22:37:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:02,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 62 [2023-11-23 22:37:02,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:02,435 INFO L225 Difference]: With dead ends: 516 [2023-11-23 22:37:02,435 INFO L226 Difference]: Without dead ends: 294 [2023-11-23 22:37:02,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:02,438 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 101 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:02,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 167 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:37:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-23 22:37:02,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 228. [2023-11-23 22:37:02,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 167 states have (on average 1.3592814371257484) internal successors, (227), 180 states have internal predecessors, (227), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (56), 32 states have call predecessors, (56), 30 states have call successors, (56) [2023-11-23 22:37:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 313 transitions. [2023-11-23 22:37:02,475 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 313 transitions. Word has length 62 [2023-11-23 22:37:02,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:02,476 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 313 transitions. [2023-11-23 22:37:02,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:37:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 313 transitions. [2023-11-23 22:37:02,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 22:37:02,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:02,479 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 22:37:02,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:37:02,479 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:02,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash -128621337, now seen corresponding path program 1 times [2023-11-23 22:37:02,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:02,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098701096] [2023-11-23 22:37:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:37:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-23 22:37:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-23 22:37:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 22:37:02,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:02,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098701096] [2023-11-23 22:37:02,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098701096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:02,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:02,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 22:37:02,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852809075] [2023-11-23 22:37:02,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:02,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 22:37:02,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:02,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 22:37:02,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:02,713 INFO L87 Difference]: Start difference. First operand 228 states and 313 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 22:37:03,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:03,357 INFO L93 Difference]: Finished difference Result 904 states and 1318 transitions. [2023-11-23 22:37:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-23 22:37:03,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) Word has length 62 [2023-11-23 22:37:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:03,363 INFO L225 Difference]: With dead ends: 904 [2023-11-23 22:37:03,363 INFO L226 Difference]: Without dead ends: 678 [2023-11-23 22:37:03,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-23 22:37:03,368 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 294 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:03,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 327 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 22:37:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2023-11-23 22:37:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 582. [2023-11-23 22:37:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 425 states have (on average 1.3294117647058823) internal successors, (565), 458 states have internal predecessors, (565), 84 states have call successors, (84), 56 states have call predecessors, (84), 72 states have return successors, (186), 90 states have call predecessors, (186), 84 states have call successors, (186) [2023-11-23 22:37:03,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 835 transitions. [2023-11-23 22:37:03,476 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 835 transitions. Word has length 62 [2023-11-23 22:37:03,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:03,477 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 835 transitions. [2023-11-23 22:37:03,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-23 22:37:03,477 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 835 transitions. [2023-11-23 22:37:03,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 22:37:03,479 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:03,479 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 22:37:03,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:37:03,480 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:03,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash 499724557, now seen corresponding path program 1 times [2023-11-23 22:37:03,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:03,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888599785] [2023-11-23 22:37:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:03,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:37:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:37:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-23 22:37:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 22:37:03,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:03,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888599785] [2023-11-23 22:37:03,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888599785] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:03,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030762313] [2023-11-23 22:37:03,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:03,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:03,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:03,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:03,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:37:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:03,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:03,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-23 22:37:03,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:03,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030762313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:03,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:03,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-23 22:37:03,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048941262] [2023-11-23 22:37:03,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:03,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:03,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:03,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:03,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-23 22:37:03,980 INFO L87 Difference]: Start difference. First operand 582 states and 835 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:37:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:04,083 INFO L93 Difference]: Finished difference Result 1069 states and 1544 transitions. [2023-11-23 22:37:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:37:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2023-11-23 22:37:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:04,089 INFO L225 Difference]: With dead ends: 1069 [2023-11-23 22:37:04,089 INFO L226 Difference]: Without dead ends: 489 [2023-11-23 22:37:04,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:37:04,092 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 50 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:04,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 168 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:04,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-23 22:37:04,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 437. [2023-11-23 22:37:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 316 states have (on average 1.3037974683544304) internal successors, (412), 343 states have internal predecessors, (412), 66 states have call successors, (66), 42 states have call predecessors, (66), 54 states have return successors, (140), 67 states have call predecessors, (140), 66 states have call successors, (140) [2023-11-23 22:37:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 618 transitions. [2023-11-23 22:37:04,147 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 618 transitions. Word has length 66 [2023-11-23 22:37:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:04,147 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 618 transitions. [2023-11-23 22:37:04,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 22:37:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 618 transitions. [2023-11-23 22:37:04,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 22:37:04,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:04,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:04,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:04,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:04,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:04,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash -673430054, now seen corresponding path program 1 times [2023-11-23 22:37:04,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:04,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710168710] [2023-11-23 22:37:04,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:37:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-23 22:37:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-23 22:37:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 22:37:04,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710168710] [2023-11-23 22:37:04,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710168710] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:04,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378564772] [2023-11-23 22:37:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:04,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:04,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:04,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:04,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:37:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:04,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:37:04,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:04,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:04,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378564772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:04,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:04,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2023-11-23 22:37:04,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633338855] [2023-11-23 22:37:04,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:04,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:04,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:04,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:04,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:04,721 INFO L87 Difference]: Start difference. First operand 437 states and 618 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:37:04,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:04,795 INFO L93 Difference]: Finished difference Result 730 states and 1058 transitions. [2023-11-23 22:37:04,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:04,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2023-11-23 22:37:04,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:04,799 INFO L225 Difference]: With dead ends: 730 [2023-11-23 22:37:04,799 INFO L226 Difference]: Without dead ends: 338 [2023-11-23 22:37:04,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 22:37:04,802 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 36 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:04,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 139 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-23 22:37:04,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 324. [2023-11-23 22:37:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 234 states have (on average 1.2735042735042734) internal successors, (298), 253 states have internal predecessors, (298), 47 states have call successors, (47), 37 states have call predecessors, (47), 42 states have return successors, (66), 47 states have call predecessors, (66), 47 states have call successors, (66) [2023-11-23 22:37:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2023-11-23 22:37:04,871 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 69 [2023-11-23 22:37:04,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:04,872 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2023-11-23 22:37:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 22:37:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2023-11-23 22:37:04,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 22:37:04,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:04,874 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:04,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:05,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:37:05,085 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:05,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -175638294, now seen corresponding path program 1 times [2023-11-23 22:37:05,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:05,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576773443] [2023-11-23 22:37:05,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:05,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:37:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-23 22:37:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 22:37:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:37:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 22:37:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-23 22:37:05,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:05,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576773443] [2023-11-23 22:37:05,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576773443] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:05,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159422075] [2023-11-23 22:37:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:05,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:05,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:05,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:37:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:05,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 22:37:05,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-23 22:37:05,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:37:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:37:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159422075] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:05,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-23 22:37:05,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2023-11-23 22:37:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863140794] [2023-11-23 22:37:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:05,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:05,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:37:05,680 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:37:05,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:05,861 INFO L93 Difference]: Finished difference Result 931 states and 1205 transitions. [2023-11-23 22:37:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:37:05,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-11-23 22:37:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:05,867 INFO L225 Difference]: With dead ends: 931 [2023-11-23 22:37:05,867 INFO L226 Difference]: Without dead ends: 609 [2023-11-23 22:37:05,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:37:05,869 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 43 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:05,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 282 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:05,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-23 22:37:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 556. [2023-11-23 22:37:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 398 states have (on average 1.2311557788944723) internal successors, (490), 432 states have internal predecessors, (490), 81 states have call successors, (81), 65 states have call predecessors, (81), 76 states have return successors, (117), 81 states have call predecessors, (117), 81 states have call successors, (117) [2023-11-23 22:37:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 688 transitions. [2023-11-23 22:37:05,944 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 688 transitions. Word has length 74 [2023-11-23 22:37:05,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:05,945 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 688 transitions. [2023-11-23 22:37:05,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 22:37:05,945 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 688 transitions. [2023-11-23 22:37:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 22:37:05,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:05,950 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-23 22:37:05,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:37:06,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:06,170 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:06,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 619209870, now seen corresponding path program 1 times [2023-11-23 22:37:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522984367] [2023-11-23 22:37:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 22:37:06,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 22:37:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-23 22:37:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-23 22:37:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 22:37:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-23 22:37:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 22:37:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 22:37:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-23 22:37:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 22:37:06,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:06,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522984367] [2023-11-23 22:37:06,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522984367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:37:06,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796330352] [2023-11-23 22:37:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:06,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:06,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:06,357 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:37:06,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:37:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:06,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:37:06,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:37:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 22:37:06,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:37:06,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796330352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:06,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:37:06,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-23 22:37:06,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718759103] [2023-11-23 22:37:06,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:06,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:37:06,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:06,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:37:06,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-23 22:37:06,581 INFO L87 Difference]: Start difference. First operand 556 states and 688 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:37:06,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:06,744 INFO L93 Difference]: Finished difference Result 1012 states and 1247 transitions. [2023-11-23 22:37:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:37:06,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2023-11-23 22:37:06,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:06,745 INFO L225 Difference]: With dead ends: 1012 [2023-11-23 22:37:06,746 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:37:06,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-11-23 22:37:06,749 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 23 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:06,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 417 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:06,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:37:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:37:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:37:06,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:37:06,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-11-23 22:37:06,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:06,751 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:37:06,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-23 22:37:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:37:06,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:37:06,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:37:06,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 22:37:06,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:37:06,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:37:09,591 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 173 179) no Hoare annotation was computed. [2023-11-23 22:37:09,591 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 173 179) the Hoare annotation is: true [2023-11-23 22:37:09,592 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 526 537) no Hoare annotation was computed. [2023-11-23 22:37:09,593 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 526 537) the Hoare annotation is: (let ((.cse0 (< ~pumpRunning~0 1)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~methaneLevelCritical~0)| 1)) (.cse7 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~waterLevel~0 2)) (or .cse4 .cse5 .cse6 .cse2 .cse7) (or .cse0 .cse4 .cse6 .cse2 .cse7) (or .cse1 .cse5 .cse2 .cse3 .cse7))) [2023-11-23 22:37:09,593 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 526 537) no Hoare annotation was computed. [2023-11-23 22:37:09,593 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 421) no Hoare annotation was computed. [2023-11-23 22:37:09,594 INFO L902 garLoopResultBuilder]: At program point L417-1(lines 417 421) the Hoare annotation is: true [2023-11-23 22:37:09,594 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 403 432) no Hoare annotation was computed. [2023-11-23 22:37:09,594 INFO L902 garLoopResultBuilder]: At program point L413-2(lines 413 427) the Hoare annotation is: true [2023-11-23 22:37:09,594 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2023-11-23 22:37:09,595 INFO L899 garLoopResultBuilder]: For program point L409-1(line 409) no Hoare annotation was computed. [2023-11-23 22:37:09,595 INFO L899 garLoopResultBuilder]: For program point L428(lines 403 432) no Hoare annotation was computed. [2023-11-23 22:37:09,596 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 403 432) the Hoare annotation is: true [2023-11-23 22:37:09,596 INFO L899 garLoopResultBuilder]: For program point L424(line 424) no Hoare annotation was computed. [2023-11-23 22:37:09,596 INFO L895 garLoopResultBuilder]: At program point L221(line 221) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse4 .cse2) (or .cse5 .cse0 .cse1 .cse4) (or .cse1 (< |old(~waterLevel~0)| 2) .cse2 .cse3) (or .cse5 .cse0 .cse1 .cse3))) [2023-11-23 22:37:09,596 INFO L899 garLoopResultBuilder]: For program point L506(lines 506 510) no Hoare annotation was computed. [2023-11-23 22:37:09,596 INFO L899 garLoopResultBuilder]: For program point L506-2(lines 502 513) no Hoare annotation was computed. [2023-11-23 22:37:09,598 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse6 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< |old(~pumpRunning~0)| 1)) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse2) (or .cse5 .cse0 .cse1 .cse6 .cse3) (or .cse5 .cse0 .cse1 .cse4 .cse6) (or .cse1 (< |old(~waterLevel~0)| 2) .cse2 .cse3))) [2023-11-23 22:37:09,598 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 207 231) no Hoare annotation was computed. [2023-11-23 22:37:09,598 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 160 166) no Hoare annotation was computed. [2023-11-23 22:37:09,598 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 92) no Hoare annotation was computed. [2023-11-23 22:37:09,598 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 95) no Hoare annotation was computed. [2023-11-23 22:37:09,598 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 70 98) no Hoare annotation was computed. [2023-11-23 22:37:09,599 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 152 171) no Hoare annotation was computed. [2023-11-23 22:37:09,599 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 223) no Hoare annotation was computed. [2023-11-23 22:37:09,599 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-23 22:37:09,599 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 228) no Hoare annotation was computed. [2023-11-23 22:37:09,599 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2023-11-23 22:37:09,600 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 149 172) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (and .cse0 .cse2 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse10 (and (= ~pumpRunning~0 0) .cse1 .cse2)) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5 .cse6) (or .cse4 .cse7 .cse8 .cse5) (or .cse4 (< |old(~waterLevel~0)| 2) .cse7 .cse5 .cse6) (or .cse9 .cse3 .cse4 .cse10 .cse6) (or .cse9 .cse3 .cse4 .cse10 .cse8)))) [2023-11-23 22:37:09,602 INFO L895 garLoopResultBuilder]: At program point L253(line 253) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2) .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse2) (or .cse6 .cse1 (and .cse0 (= ~methAndRunningLastTime~0 0)) .cse3 .cse4) (or .cse5 .cse6 .cse1 .cse4))) [2023-11-23 22:37:09,603 INFO L899 garLoopResultBuilder]: For program point L253-1(line 253) no Hoare annotation was computed. [2023-11-23 22:37:09,604 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse9 (= ~pumpRunning~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse11)) (.cse4 (and (<= 1 ~pumpRunning~0) (= ~methAndRunningLastTime~0 0) (<= 2 |old(~waterLevel~0)|) .cse12)) (.cse5 (and .cse9 .cse10 .cse11 .cse12 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (and .cse9 .cse10)) (.cse2 (not .cse10)) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse4 .cse5) (or .cse1 .cse2 .cse7 .cse8 .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse6 .cse7 .cse8) (or .cse9 .cse2 (< |old(~waterLevel~0)| 2) .cse7 .cse3)))) [2023-11-23 22:37:09,604 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-11-23 22:37:09,604 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 149 172) no Hoare annotation was computed. [2023-11-23 22:37:09,604 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-23 22:37:09,604 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 538 546) the Hoare annotation is: true [2023-11-23 22:37:09,605 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 538 546) no Hoare annotation was computed. [2023-11-23 22:37:09,605 INFO L899 garLoopResultBuilder]: For program point L383(lines 383 387) no Hoare annotation was computed. [2023-11-23 22:37:09,605 INFO L895 garLoopResultBuilder]: At program point L383-2(lines 375 388) the Hoare annotation is: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse5 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse1 .cse2 .cse3) (and .cse5 .cse4 .cse6 .cse2 .cse3) (and .cse0 .cse6 .cse2 .cse3))) [2023-11-23 22:37:09,605 INFO L899 garLoopResultBuilder]: For program point L346(lines 345 392) no Hoare annotation was computed. [2023-11-23 22:37:09,606 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 388) no Hoare annotation was computed. [2023-11-23 22:37:09,606 INFO L895 garLoopResultBuilder]: At program point L367(line 367) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2023-11-23 22:37:09,606 INFO L899 garLoopResultBuilder]: For program point L396(lines 335 400) no Hoare annotation was computed. [2023-11-23 22:37:09,606 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 361) no Hoare annotation was computed. [2023-11-23 22:37:09,606 INFO L899 garLoopResultBuilder]: For program point L355-1(lines 355 361) no Hoare annotation was computed. [2023-11-23 22:37:09,606 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:37:09,607 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:37:09,607 INFO L895 garLoopResultBuilder]: At program point L393(lines 344 394) the Hoare annotation is: false [2023-11-23 22:37:09,607 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 371) no Hoare annotation was computed. [2023-11-23 22:37:09,608 INFO L899 garLoopResultBuilder]: For program point L365-1(lines 365 371) no Hoare annotation was computed. [2023-11-23 22:37:09,608 INFO L895 garLoopResultBuilder]: At program point L390(lines 345 392) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2023-11-23 22:37:09,608 INFO L899 garLoopResultBuilder]: For program point L485(lines 485 492) no Hoare annotation was computed. [2023-11-23 22:37:09,608 INFO L895 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse2 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse2 .cse3))) [2023-11-23 22:37:09,609 INFO L899 garLoopResultBuilder]: For program point L485-2(lines 485 492) no Hoare annotation was computed. [2023-11-23 22:37:09,609 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 181 205) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse3 .cse0 .cse1 .cse4) (or .cse2 .cse3 .cse0 .cse4 (< ~methaneLevelCritical~0 1)))) [2023-11-23 22:37:09,609 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 589) no Hoare annotation was computed. [2023-11-23 22:37:09,609 INFO L895 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse6 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not .cse6)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= ~pumpRunning~0 0) .cse5 .cse6 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse3 (not .cse5))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse1 .cse4 (< |old(~pumpRunning~0)| 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3)))) [2023-11-23 22:37:09,609 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 579 592) no Hoare annotation was computed. [2023-11-23 22:37:09,609 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 197) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 181 205) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 202) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point L313(lines 313 317) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point L313-2(lines 313 317) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 (< |old(~pumpRunning~0)| 1)) (or .cse2 .cse0 .cse1 .cse3) (or .cse2 .cse0 .cse3 (< ~methaneLevelCritical~0 1)))) [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point L200-1(lines 181 205) no Hoare annotation was computed. [2023-11-23 22:37:09,610 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 514 525) no Hoare annotation was computed. [2023-11-23 22:37:09,611 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 514 525) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse6 (< ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse2 .cse3) (or .cse6 .cse1 .cse5 .cse2 .cse3) (or .cse6 .cse1 (< |old(~waterLevel~0)| 2) .cse2 .cse4))) [2023-11-23 22:37:09,611 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 514 525) no Hoare annotation was computed. [2023-11-23 22:37:09,613 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:09,616 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:37:09,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:37:09 BoogieIcfgContainer [2023-11-23 22:37:09,634 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:37:09,634 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:37:09,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:37:09,635 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:37:09,635 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:36:59" (3/4) ... [2023-11-23 22:37:09,637 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:37:09,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 22:37:09,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 22:37:09,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 22:37:09,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 22:37:09,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 22:37:09,642 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-23 22:37:09,643 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 22:37:09,657 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-11-23 22:37:09,658 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 22:37:09,659 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 22:37:09,660 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:37:09,660 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:37:09,797 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:37:09,797 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:37:09,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:37:09,798 INFO L158 Benchmark]: Toolchain (without parser) took 11551.61ms. Allocated memory was 134.2MB in the beginning and 209.7MB in the end (delta: 75.5MB). Free memory was 88.8MB in the beginning and 163.8MB in the end (delta: -75.0MB). Peak memory consumption was 797.9kB. Max. memory is 16.1GB. [2023-11-23 22:37:09,798 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:37:09,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.30ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 68.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.21ms. Allocated memory is still 134.2MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,799 INFO L158 Benchmark]: Boogie Preprocessor took 68.86ms. Allocated memory is still 134.2MB. Free memory was 66.7MB in the beginning and 64.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,799 INFO L158 Benchmark]: RCFGBuilder took 630.81ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 64.3MB in the beginning and 142.1MB in the end (delta: -77.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,800 INFO L158 Benchmark]: TraceAbstraction took 10014.80ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 141.2MB in the beginning and 171.2MB in the end (delta: -30.0MB). Peak memory consumption was 121.5MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,800 INFO L158 Benchmark]: Witness Printer took 163.07ms. Allocated memory is still 209.7MB. Free memory was 171.2MB in the beginning and 163.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:37:09,802 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 134.2MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.30ms. Allocated memory is still 134.2MB. Free memory was 88.4MB in the beginning and 68.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.21ms. Allocated memory is still 134.2MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.86ms. Allocated memory is still 134.2MB. Free memory was 66.7MB in the beginning and 64.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.81ms. Allocated memory was 134.2MB in the beginning and 174.1MB in the end (delta: 39.8MB). Free memory was 64.3MB in the beginning and 142.1MB in the end (delta: -77.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10014.80ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 141.2MB in the beginning and 171.2MB in the end (delta: -30.0MB). Peak memory consumption was 121.5MB. Max. memory is 16.1GB. * Witness Printer took 163.07ms. Allocated memory is still 209.7MB. Free memory was 171.2MB in the beginning and 163.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [58] - GenericResultAtLocation [Line: 99]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [99] - GenericResultAtLocation [Line: 137]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [137] - GenericResultAtLocation [Line: 331]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [331] - GenericResultAtLocation [Line: 401]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [401] - GenericResultAtLocation [Line: 498]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [498] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [593] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 862 mSDsluCounter, 2186 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1358 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1237 IncrementalHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 828 mSDtfsCounter, 1237 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 537 GetRequests, 458 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=582occurred in iteration=8, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 341 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 891 PreInvPairs, 972 NumberOfFragments, 1147 HoareAnnotationTreeSize, 891 FomulaSimplifications, 2965 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 21 FomulaSimplificationsInter, 5247 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 934 ConstructedInterpolants, 0 QuantifiedInterpolants, 1714 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1162 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 310/322 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 344]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 413]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:37:09,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9665daf0-b86a-48c2-ad2c-4127e9f67eb6/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE