./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl --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 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:31:30,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:31:31,018 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:31:31,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:31:31,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:31:31,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:31:31,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:31:31,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:31:31,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:31:31,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:31:31,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:31:31,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:31:31,079 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:31:31,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:31:31,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:31:31,082 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:31:31,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:31:31,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:31:31,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:31:31,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:31:31,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:31:31,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:31:31,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:31:31,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:31:31,086 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:31:31,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:31:31,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:31:31,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:31:31,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:31,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:31:31,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:31:31,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:31:31,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:31:31,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:31:31,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:31:31,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:31:31,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:31:31,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:31:31,093 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:31:31,093 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_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ebbbe9395fd7f6497497f0e6f84282075bb296e20acc9821d0fb2d7075b331d [2023-11-12 02:31:31,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:31:31,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:31:31,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:31:31,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:31:31,435 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:31:31,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2023-11-12 02:31:34,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:31:35,094 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:31:35,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c [2023-11-12 02:31:35,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/data/a5dbb0fbd/e69c0faf2a5f46bca85e291f49d8f828/FLAGfc712e8e4 [2023-11-12 02:31:35,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/data/a5dbb0fbd/e69c0faf2a5f46bca85e291f49d8f828 [2023-11-12 02:31:35,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:31:35,149 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:31:35,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:35,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:31:35,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:31:35,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5add6c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35, skipping insertion in model container [2023-11-12 02:31:35,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:31:35,616 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_03eb3011-99ec-4a24-8285-9497fad0ea56/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2023-11-12 02:31:35,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:35,655 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:31:35,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-11-12 02:31:35,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [155] [2023-11-12 02:31:35,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [264] [2023-11-12 02:31:35,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [305] [2023-11-12 02:31:35,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [370] [2023-11-12 02:31:35,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [569] [2023-11-12 02:31:35,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [935] [2023-11-12 02:31:35,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [944] [2023-11-12 02:31:35,783 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_03eb3011-99ec-4a24-8285-9497fad0ea56/sv-benchmarks/c/product-lines/minepump_spec2_product49.cil.c[18359,18372] [2023-11-12 02:31:35,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:31:35,811 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:31:35,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35 WrapperNode [2023-11-12 02:31:35,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:31:35,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:35,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:31:35,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:31:35,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,889 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 206 [2023-11-12 02:31:35,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:31:35,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:31:35,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:31:35,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:31:35,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:31:35,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:31:35,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:31:35,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:31:35,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (1/1) ... [2023-11-12 02:31:35,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:31:35,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:35,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:31:35,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:31:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:31:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:31:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:31:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-12 02:31:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-12 02:31:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:31:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:31:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:31:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:31:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:31:36,003 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:31:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:31:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:31:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:31:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:31:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:31:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:31:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:31:36,159 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:31:36,165 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:31:36,548 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:31:36,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:31:36,556 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:31:36,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:36 BoogieIcfgContainer [2023-11-12 02:31:36,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:31:36,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:31:36,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:31:36,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:31:36,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:31:35" (1/3) ... [2023-11-12 02:31:36,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fd3198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:36, skipping insertion in model container [2023-11-12 02:31:36,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:31:35" (2/3) ... [2023-11-12 02:31:36,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58fd3198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:31:36, skipping insertion in model container [2023-11-12 02:31:36,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:36" (3/3) ... [2023-11-12 02:31:36,569 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2023-11-12 02:31:36,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:31:36,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:31:36,645 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:31:36,652 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;@60b05191, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:31:36,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:31:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:31:36,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:31:36,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:36,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:36,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:36,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:36,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1277571174, now seen corresponding path program 1 times [2023-11-12 02:31:36,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:36,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54700863] [2023-11-12 02:31:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:31:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:36,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:36,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54700863] [2023-11-12 02:31:36,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54700863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:36,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:36,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:31:36,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735018156] [2023-11-12 02:31:36,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:36,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:31:36,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:36,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:31:36,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:31:36,964 INFO L87 Difference]: Start difference. First operand has 88 states, 68 states have (on average 1.3970588235294117) internal successors, (95), 76 states have internal predecessors, (95), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:37,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:37,009 INFO L93 Difference]: Finished difference Result 167 states and 228 transitions. [2023-11-12 02:31:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:31:37,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-12 02:31:37,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:37,021 INFO L225 Difference]: With dead ends: 167 [2023-11-12 02:31:37,022 INFO L226 Difference]: Without dead ends: 79 [2023-11-12 02:31:37,026 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 [2023-11-12 02:31:37,029 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:37,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-12 02:31:37,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-12 02:31:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 68 states have internal predecessors, (81), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:31:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 102 transitions. [2023-11-12 02:31:37,079 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 102 transitions. Word has length 25 [2023-11-12 02:31:37,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:37,080 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 102 transitions. [2023-11-12 02:31:37,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2023-11-12 02:31:37,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:31:37,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:37,084 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] [2023-11-12 02:31:37,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:31:37,084 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:37,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:37,085 INFO L85 PathProgramCache]: Analyzing trace with hash -941221246, now seen corresponding path program 1 times [2023-11-12 02:31:37,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:37,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516377793] [2023-11-12 02:31:37,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:37,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:31:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:37,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:37,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516377793] [2023-11-12 02:31:37,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516377793] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:37,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:37,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:31:37,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675085934] [2023-11-12 02:31:37,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:37,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:37,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:31:37,240 INFO L87 Difference]: Start difference. First operand 79 states and 102 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:31:37,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:37,256 INFO L93 Difference]: Finished difference Result 123 states and 159 transitions. [2023-11-12 02:31:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:37,257 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), 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 26 [2023-11-12 02:31:37,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:37,259 INFO L225 Difference]: With dead ends: 123 [2023-11-12 02:31:37,259 INFO L226 Difference]: Without dead ends: 70 [2023-11-12 02:31:37,260 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 [2023-11-12 02:31:37,262 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:37,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:37,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-12 02:31:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-12 02:31:37,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 62 states have internal predecessors, (74), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:31:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2023-11-12 02:31:37,275 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 26 [2023-11-12 02:31:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:37,275 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2023-11-12 02:31:37,275 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), 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) [2023-11-12 02:31:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2023-11-12 02:31:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:31:37,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:37,277 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] [2023-11-12 02:31:37,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:31:37,278 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:37,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash -913943674, now seen corresponding path program 1 times [2023-11-12 02:31:37,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:37,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296101942] [2023-11-12 02:31:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:37,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:37,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:37,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296101942] [2023-11-12 02:31:37,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296101942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:37,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:37,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:31:37,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040011947] [2023-11-12 02:31:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:37,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:31:37,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:37,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:31:37,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:37,565 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:37,720 INFO L93 Difference]: Finished difference Result 132 states and 173 transitions. [2023-11-12 02:31:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-12 02:31:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:37,722 INFO L225 Difference]: With dead ends: 132 [2023-11-12 02:31:37,723 INFO L226 Difference]: Without dead ends: 70 [2023-11-12 02:31:37,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:31:37,725 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 174 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:37,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 189 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:37,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-12 02:31:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-12 02:31:37,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 62 states have internal predecessors, (73), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:31:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2023-11-12 02:31:37,738 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 30 [2023-11-12 02:31:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:37,739 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2023-11-12 02:31:37,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:31:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2023-11-12 02:31:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-12 02:31:37,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:37,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:37,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:31:37,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:37,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1798308510, now seen corresponding path program 1 times [2023-11-12 02:31:37,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:37,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182136251] [2023-11-12 02:31:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:31:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:37,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:37,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182136251] [2023-11-12 02:31:37,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182136251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:37,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:37,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:31:37,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369519823] [2023-11-12 02:31:37,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:37,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:37,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:37,869 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:31:38,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:38,052 INFO L93 Difference]: Finished difference Result 206 states and 264 transitions. [2023-11-12 02:31:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:31:38,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2023-11-12 02:31:38,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:38,055 INFO L225 Difference]: With dead ends: 206 [2023-11-12 02:31:38,055 INFO L226 Difference]: Without dead ends: 144 [2023-11-12 02:31:38,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:31:38,058 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 167 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:38,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 282 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-12 02:31:38,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2023-11-12 02:31:38,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 114 states have internal predecessors, (138), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-12 02:31:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 171 transitions. [2023-11-12 02:31:38,084 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 171 transitions. Word has length 40 [2023-11-12 02:31:38,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:38,085 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 171 transitions. [2023-11-12 02:31:38,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:31:38,085 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 171 transitions. [2023-11-12 02:31:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:31:38,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:38,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:38,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:31:38,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:38,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1579167755, now seen corresponding path program 1 times [2023-11-12 02:31:38,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:38,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312971277] [2023-11-12 02:31:38,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:38,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:31:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:38,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:38,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312971277] [2023-11-12 02:31:38,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312971277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:38,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:38,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:31:38,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627672259] [2023-11-12 02:31:38,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:38,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:31:38,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:38,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:31:38,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:38,254 INFO L87 Difference]: Start difference. First operand 138 states and 171 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:38,434 INFO L93 Difference]: Finished difference Result 276 states and 346 transitions. [2023-11-12 02:31:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:31:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:31:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:38,440 INFO L225 Difference]: With dead ends: 276 [2023-11-12 02:31:38,440 INFO L226 Difference]: Without dead ends: 146 [2023-11-12 02:31:38,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:31:38,443 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 60 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:38,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 356 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:38,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-12 02:31:38,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2023-11-12 02:31:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 117 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-12 02:31:38,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2023-11-12 02:31:38,481 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 44 [2023-11-12 02:31:38,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:38,483 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2023-11-12 02:31:38,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2023-11-12 02:31:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:31:38,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:38,492 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:38,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:31:38,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:38,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash -109775987, now seen corresponding path program 1 times [2023-11-12 02:31:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422754488] [2023-11-12 02:31:38,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:31:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:38,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:38,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422754488] [2023-11-12 02:31:38,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422754488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:38,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:38,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:31:38,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380780083] [2023-11-12 02:31:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:38,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:38,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:38,642 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:38,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:38,760 INFO L93 Difference]: Finished difference Result 284 states and 357 transitions. [2023-11-12 02:31:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:31:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:31:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:38,763 INFO L225 Difference]: With dead ends: 284 [2023-11-12 02:31:38,763 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 02:31:38,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:31:38,765 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 62 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:38,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 279 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 02:31:38,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2023-11-12 02:31:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 119 states have internal predecessors, (143), 14 states have call successors, (14), 13 states have call predecessors, (14), 16 states have return successors, (19), 15 states have call predecessors, (19), 14 states have call successors, (19) [2023-11-12 02:31:38,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 176 transitions. [2023-11-12 02:31:38,785 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 176 transitions. Word has length 44 [2023-11-12 02:31:38,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:38,786 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 176 transitions. [2023-11-12 02:31:38,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 176 transitions. [2023-11-12 02:31:38,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 02:31:38,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:38,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:38,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:31:38,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:38,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:38,789 INFO L85 PathProgramCache]: Analyzing trace with hash 312925839, now seen corresponding path program 1 times [2023-11-12 02:31:38,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:38,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75993214] [2023-11-12 02:31:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:31:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:38,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:38,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:38,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75993214] [2023-11-12 02:31:38,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75993214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:38,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:38,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:31:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946438022] [2023-11-12 02:31:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:38,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:38,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:38,915 INFO L87 Difference]: Start difference. First operand 143 states and 176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:39,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:39,154 INFO L93 Difference]: Finished difference Result 400 states and 514 transitions. [2023-11-12 02:31:39,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:31:39,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2023-11-12 02:31:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:39,158 INFO L225 Difference]: With dead ends: 400 [2023-11-12 02:31:39,159 INFO L226 Difference]: Without dead ends: 265 [2023-11-12 02:31:39,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:31:39,164 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 200 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:39,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 287 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:31:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-12 02:31:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 257. [2023-11-12 02:31:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 209 states have internal predecessors, (251), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2023-11-12 02:31:39,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 324 transitions. [2023-11-12 02:31:39,215 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 324 transitions. Word has length 44 [2023-11-12 02:31:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:39,215 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 324 transitions. [2023-11-12 02:31:39,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:31:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 324 transitions. [2023-11-12 02:31:39,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-12 02:31:39,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:39,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:39,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:31:39,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:39,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:39,225 INFO L85 PathProgramCache]: Analyzing trace with hash 299238822, now seen corresponding path program 1 times [2023-11-12 02:31:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:39,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435968340] [2023-11-12 02:31:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:39,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:31:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:31:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:39,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:39,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435968340] [2023-11-12 02:31:39,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435968340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:39,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:39,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:31:39,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585325442] [2023-11-12 02:31:39,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:39,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:31:39,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:31:39,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:31:39,461 INFO L87 Difference]: Start difference. First operand 257 states and 324 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:31:39,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:39,723 INFO L93 Difference]: Finished difference Result 518 states and 661 transitions. [2023-11-12 02:31:39,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:31:39,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-12 02:31:39,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:39,727 INFO L225 Difference]: With dead ends: 518 [2023-11-12 02:31:39,728 INFO L226 Difference]: Without dead ends: 269 [2023-11-12 02:31:39,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:31:39,733 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 112 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:39,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 307 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:31:39,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-12 02:31:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 253. [2023-11-12 02:31:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 194 states have (on average 1.231958762886598) internal successors, (239), 205 states have internal predecessors, (239), 29 states have call successors, (29), 28 states have call predecessors, (29), 29 states have return successors, (44), 29 states have call predecessors, (44), 29 states have call successors, (44) [2023-11-12 02:31:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 312 transitions. [2023-11-12 02:31:39,770 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 312 transitions. Word has length 46 [2023-11-12 02:31:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:39,772 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 312 transitions. [2023-11-12 02:31:39,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:31:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 312 transitions. [2023-11-12 02:31:39,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-12 02:31:39,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:39,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:39,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:31:39,775 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:39,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:39,775 INFO L85 PathProgramCache]: Analyzing trace with hash 657916201, now seen corresponding path program 1 times [2023-11-12 02:31:39,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:39,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429290985] [2023-11-12 02:31:39,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:39,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:31:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:31:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:31:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:39,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:39,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429290985] [2023-11-12 02:31:39,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429290985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:39,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:31:39,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:31:39,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050506343] [2023-11-12 02:31:39,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:39,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:39,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:39,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:31:39,872 INFO L87 Difference]: Start difference. First operand 253 states and 312 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:31:40,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:40,249 INFO L93 Difference]: Finished difference Result 470 states and 595 transitions. [2023-11-12 02:31:40,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:31:40,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-12 02:31:40,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:40,255 INFO L225 Difference]: With dead ends: 470 [2023-11-12 02:31:40,256 INFO L226 Difference]: Without dead ends: 468 [2023-11-12 02:31:40,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:31:40,259 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 279 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:40,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 221 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:31:40,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-12 02:31:40,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 428. [2023-11-12 02:31:40,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 331 states have (on average 1.2356495468277946) internal successors, (409), 352 states have internal predecessors, (409), 48 states have call successors, (48), 42 states have call predecessors, (48), 48 states have return successors, (90), 47 states have call predecessors, (90), 48 states have call successors, (90) [2023-11-12 02:31:40,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 547 transitions. [2023-11-12 02:31:40,325 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 547 transitions. Word has length 48 [2023-11-12 02:31:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:40,326 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 547 transitions. [2023-11-12 02:31:40,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:31:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 547 transitions. [2023-11-12 02:31:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 02:31:40,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:40,345 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, 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] [2023-11-12 02:31:40,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:31:40,345 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:40,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:40,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1908194548, now seen corresponding path program 1 times [2023-11-12 02:31:40,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:40,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022273851] [2023-11-12 02:31:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:40,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:31:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:31:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:31:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:31:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:31:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,540 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 02:31:40,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:40,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022273851] [2023-11-12 02:31:40,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022273851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:40,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140083461] [2023-11-12 02:31:40,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:40,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:40,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:40,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:40,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:31:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:40,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:31:40,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:40,916 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:40,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140083461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:40,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:40,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2023-11-12 02:31:40,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386781961] [2023-11-12 02:31:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:40,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:31:40,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:40,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:31:40,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:31:40,920 INFO L87 Difference]: Start difference. First operand 428 states and 547 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-12 02:31:40,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:40,982 INFO L93 Difference]: Finished difference Result 751 states and 975 transitions. [2023-11-12 02:31:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:31:40,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 86 [2023-11-12 02:31:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:40,989 INFO L225 Difference]: With dead ends: 751 [2023-11-12 02:31:40,990 INFO L226 Difference]: Without dead ends: 379 [2023-11-12 02:31:40,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:31:40,992 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:40,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-12 02:31:41,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2023-11-12 02:31:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 293 states have (on average 1.2320819112627985) internal successors, (361), 312 states have internal predecessors, (361), 43 states have call successors, (43), 37 states have call predecessors, (43), 42 states have return successors, (68), 43 states have call predecessors, (68), 43 states have call successors, (68) [2023-11-12 02:31:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 472 transitions. [2023-11-12 02:31:41,063 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 472 transitions. Word has length 86 [2023-11-12 02:31:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:41,065 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 472 transitions. [2023-11-12 02:31:41,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2023-11-12 02:31:41,066 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 472 transitions. [2023-11-12 02:31:41,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:31:41,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:41,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:41,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:41,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:31:41,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:41,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1350194604, now seen corresponding path program 1 times [2023-11-12 02:31:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:41,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465535284] [2023-11-12 02:31:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:31:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:31:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:31:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:31:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:31:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:31:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:41,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465535284] [2023-11-12 02:31:41,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465535284] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:41,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707457365] [2023-11-12 02:31:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:41,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:41,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:41,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:41,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:31:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:41,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:31:41,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:31:41,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:41,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707457365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:41,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:41,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-12 02:31:41,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095633840] [2023-11-12 02:31:41,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:41,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:31:41,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:31:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:31:41,881 INFO L87 Difference]: Start difference. First operand 379 states and 472 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:31:42,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:42,074 INFO L93 Difference]: Finished difference Result 912 states and 1187 transitions. [2023-11-12 02:31:42,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:31:42,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 89 [2023-11-12 02:31:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:42,080 INFO L225 Difference]: With dead ends: 912 [2023-11-12 02:31:42,081 INFO L226 Difference]: Without dead ends: 589 [2023-11-12 02:31:42,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:31:42,084 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 125 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:42,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 566 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:31:42,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-11-12 02:31:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 538. [2023-11-12 02:31:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 414 states have (on average 1.2318840579710144) internal successors, (510), 440 states have internal predecessors, (510), 62 states have call successors, (62), 55 states have call predecessors, (62), 61 states have return successors, (99), 59 states have call predecessors, (99), 62 states have call successors, (99) [2023-11-12 02:31:42,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 671 transitions. [2023-11-12 02:31:42,145 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 671 transitions. Word has length 89 [2023-11-12 02:31:42,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:42,146 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 671 transitions. [2023-11-12 02:31:42,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 02:31:42,146 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 671 transitions. [2023-11-12 02:31:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:31:42,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:31:42,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:42,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:42,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:31:42,355 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:31:42,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:31:42,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1484208110, now seen corresponding path program 1 times [2023-11-12 02:31:42,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:31:42,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458475772] [2023-11-12 02:31:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:42,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:31:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:31:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:31:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:31:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-12 02:31:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:31:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:31:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:31:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:31:42,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:31:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458475772] [2023-11-12 02:31:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458475772] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:31:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846192742] [2023-11-12 02:31:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:31:42,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:31:42,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:31:42,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:31:42,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:31:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:31:42,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:31:42,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:31:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:31:42,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:31:42,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846192742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:31:42,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:31:42,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-12 02:31:42,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843482807] [2023-11-12 02:31:42,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:31:42,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:31:42,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:31:42,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:31:42,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:31:42,706 INFO L87 Difference]: Start difference. First operand 538 states and 671 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:31:42,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:31:42,769 INFO L93 Difference]: Finished difference Result 724 states and 900 transitions. [2023-11-12 02:31:42,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:31:42,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2023-11-12 02:31:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:31:42,771 INFO L225 Difference]: With dead ends: 724 [2023-11-12 02:31:42,771 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:31:42,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:31:42,774 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 15 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:31:42,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 334 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:31:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:31:42,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:31:42,776 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) [2023-11-12 02:31:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:31:42,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2023-11-12 02:31:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:31:42,777 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:31:42,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:31:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:31:42,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:31:42,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:31:42,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:31:42,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-12 02:31:42,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:31:44,439 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 400 406) no Hoare annotation was computed. [2023-11-12 02:31:44,439 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 400 406) the Hoare annotation is: true [2023-11-12 02:31:44,439 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 188 199) no Hoare annotation was computed. [2023-11-12 02:31:44,440 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 188 199) the Hoare annotation is: true [2023-11-12 02:31:44,440 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 188 199) no Hoare annotation was computed. [2023-11-12 02:31:44,440 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 200 208) the Hoare annotation is: true [2023-11-12 02:31:44,440 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 200 208) no Hoare annotation was computed. [2023-11-12 02:31:44,440 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 200 208) no Hoare annotation was computed. [2023-11-12 02:31:44,441 INFO L895 garLoopResultBuilder]: At program point L448(line 448) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (< |old(~pumpRunning~0)| 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2023-11-12 02:31:44,441 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 255 263) no Hoare annotation was computed. [2023-11-12 02:31:44,441 INFO L899 garLoopResultBuilder]: For program point L940(line 940) no Hoare annotation was computed. [2023-11-12 02:31:44,441 INFO L899 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2023-11-12 02:31:44,442 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 376 399) no Hoare annotation was computed. [2023-11-12 02:31:44,442 INFO L899 garLoopResultBuilder]: For program point L168-2(lines 164 175) no Hoare annotation was computed. [2023-11-12 02:31:44,445 INFO L895 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methAndRunningLastTime~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (< |old(~waterLevel~0)| 2) (< |old(~pumpRunning~0)| 1)))) [2023-11-12 02:31:44,445 INFO L899 garLoopResultBuilder]: For program point L453-1(lines 434 458) no Hoare annotation was computed. [2023-11-12 02:31:44,445 INFO L899 garLoopResultBuilder]: For program point L387-1(lines 387 393) no Hoare annotation was computed. [2023-11-12 02:31:44,446 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 298) no Hoare annotation was computed. [2023-11-12 02:31:44,446 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 301) no Hoare annotation was computed. [2023-11-12 02:31:44,446 INFO L899 garLoopResultBuilder]: For program point L284-1(lines 276 304) no Hoare annotation was computed. [2023-11-12 02:31:44,446 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2023-11-12 02:31:44,447 INFO L899 garLoopResultBuilder]: For program point L380-1(lines 379 398) no Hoare annotation was computed. [2023-11-12 02:31:44,447 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 450) no Hoare annotation was computed. [2023-11-12 02:31:44,447 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 455) no Hoare annotation was computed. [2023-11-12 02:31:44,447 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 936 943) no Hoare annotation was computed. [2023-11-12 02:31:44,448 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 376 399) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse5 (< |old(~pumpRunning~0)| 1))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3)) (or .cse1 .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3) .cse5) (or .cse0 .cse2 .cse1 .cse4 .cse5))) [2023-11-12 02:31:44,448 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 467 474) no Hoare annotation was computed. [2023-11-12 02:31:44,448 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 550 568) no Hoare annotation was computed. [2023-11-12 02:31:44,449 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 .cse2 (= ~waterLevel~0 1)) .cse3 (not (= |old(~waterLevel~0)| 1)) .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse3 (and .cse1 .cse5) .cse4 (and (<= 1 ~pumpRunning~0) .cse2 .cse5) .cse6)) (or .cse4 .cse6 (< |old(~pumpRunning~0)| 1) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0))))) [2023-11-12 02:31:44,449 INFO L899 garLoopResultBuilder]: For program point L282-1(line 282) no Hoare annotation was computed. [2023-11-12 02:31:44,449 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 563) no Hoare annotation was computed. [2023-11-12 02:31:44,450 INFO L899 garLoopResultBuilder]: For program point L559-2(lines 559 563) no Hoare annotation was computed. [2023-11-12 02:31:44,450 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 376 399) no Hoare annotation was computed. [2023-11-12 02:31:44,450 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 486 494) no Hoare annotation was computed. [2023-11-12 02:31:44,450 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 940) no Hoare annotation was computed. [2023-11-12 02:31:44,451 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-11-12 02:31:44,451 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-11-12 02:31:44,451 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2023-11-12 02:31:44,452 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-11-12 02:31:44,452 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-11-12 02:31:44,452 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-12 02:31:44,452 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-11-12 02:31:44,452 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-11-12 02:31:44,453 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-12 02:31:44,453 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-11-12 02:31:44,453 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 118 128) no Hoare annotation was computed. [2023-11-12 02:31:44,453 INFO L895 garLoopResultBuilder]: At program point L362(lines 315 363) the Hoare annotation is: false [2023-11-12 02:31:44,454 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 956 962) no Hoare annotation was computed. [2023-11-12 02:31:44,454 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 132 154) no Hoare annotation was computed. [2023-11-12 02:31:44,454 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:31:44,454 INFO L899 garLoopResultBuilder]: For program point L317(lines 316 361) no Hoare annotation was computed. [2023-11-12 02:31:44,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:31:44,455 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 357) no Hoare annotation was computed. [2023-11-12 02:31:44,455 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse1 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse5 .cse6 .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-11-12 02:31:44,455 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 109 115) no Hoare annotation was computed. [2023-11-12 02:31:44,456 INFO L895 garLoopResultBuilder]: At program point L359(lines 316 361) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse1 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse5 .cse6 .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-11-12 02:31:44,456 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2023-11-12 02:31:44,456 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2023-11-12 02:31:44,457 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:31:44,457 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2023-11-12 02:31:44,457 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:31:44,457 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 963 969) no Hoare annotation was computed. [2023-11-12 02:31:44,458 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 356) no Hoare annotation was computed. [2023-11-12 02:31:44,458 INFO L895 garLoopResultBuilder]: At program point L352-2(lines 346 357) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse1 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse5 .cse6 .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-11-12 02:31:44,458 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 268 275) no Hoare annotation was computed. [2023-11-12 02:31:44,459 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2023-11-12 02:31:44,459 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2023-11-12 02:31:44,459 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 149) no Hoare annotation was computed. [2023-11-12 02:31:44,459 INFO L899 garLoopResultBuilder]: For program point L365(lines 306 369) no Hoare annotation was computed. [2023-11-12 02:31:44,459 INFO L899 garLoopResultBuilder]: For program point L142-2(lines 142 149) no Hoare annotation was computed. [2023-11-12 02:31:44,460 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 970 978) no Hoare annotation was computed. [2023-11-12 02:31:44,460 INFO L895 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse0 .cse1 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse5 .cse6 .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-11-12 02:31:44,460 INFO L899 garLoopResultBuilder]: For program point activatePump_returnLabel#1(lines 459 466) no Hoare annotation was computed. [2023-11-12 02:31:44,461 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 408 432) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2023-11-12 02:31:44,461 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2023-11-12 02:31:44,461 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 241 254) no Hoare annotation was computed. [2023-11-12 02:31:44,462 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2023-11-12 02:31:44,462 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 531 549) no Hoare annotation was computed. [2023-11-12 02:31:44,462 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 429) no Hoare annotation was computed. [2023-11-12 02:31:44,462 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 544) no Hoare annotation was computed. [2023-11-12 02:31:44,462 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 408 432) no Hoare annotation was computed. [2023-11-12 02:31:44,463 INFO L899 garLoopResultBuilder]: For program point L540-2(lines 540 544) no Hoare annotation was computed. [2023-11-12 02:31:44,463 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2023-11-12 02:31:44,463 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (not (= ~methAndRunningLastTime~0 0))) [2023-11-12 02:31:44,463 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 408 432) no Hoare annotation was computed. [2023-11-12 02:31:44,464 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 176 187) no Hoare annotation was computed. [2023-11-12 02:31:44,464 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 176 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (< ~pumpRunning~0 1) .cse0 (< |old(~waterLevel~0)| 2) .cse1))) [2023-11-12 02:31:44,464 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 176 187) no Hoare annotation was computed. [2023-11-12 02:31:44,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:31:44,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:31:44,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:31:44 BoogieIcfgContainer [2023-11-12 02:31:44,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:31:44,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:31:44,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:31:44,502 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:31:44,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:31:36" (3/4) ... [2023-11-12 02:31:44,505 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:31:44,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:31:44,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:31:44,511 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-12 02:31:44,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:31:44,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:31:44,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:31:44,512 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:31:44,531 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:31:44,532 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:31:44,532 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:31:44,533 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:31:44,534 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:31:44,573 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) [2023-11-12 02:31:44,622 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) [2023-11-12 02:31:44,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:31:44,692 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:31:44,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:31:44,693 INFO L158 Benchmark]: Toolchain (without parser) took 9543.96ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 108.9MB in the beginning and 179.3MB in the end (delta: -70.4MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,694 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:31:44,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.63ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 89.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.99ms. Allocated memory is still 155.2MB. Free memory was 89.4MB in the beginning and 87.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,695 INFO L158 Benchmark]: Boogie Preprocessor took 33.78ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,696 INFO L158 Benchmark]: RCFGBuilder took 634.61ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 115.9MB in the end (delta: -30.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,697 INFO L158 Benchmark]: TraceAbstraction took 7939.02ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 114.9MB in the beginning and 186.7MB in the end (delta: -71.8MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,699 INFO L158 Benchmark]: Witness Printer took 191.16ms. Allocated memory is still 224.4MB. Free memory was 186.7MB in the beginning and 179.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:31:44,701 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 113.2MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.63ms. Allocated memory is still 155.2MB. Free memory was 108.9MB in the beginning and 89.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.99ms. Allocated memory is still 155.2MB. Free memory was 89.4MB in the beginning and 87.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.78ms. Allocated memory is still 155.2MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 634.61ms. Allocated memory is still 155.2MB. Free memory was 85.5MB in the beginning and 115.9MB in the end (delta: -30.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7939.02ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 114.9MB in the beginning and 186.7MB in the end (delta: -71.8MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. * Witness Printer took 191.16ms. Allocated memory is still 224.4MB. Free memory was 186.7MB in the beginning and 179.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [155] - GenericResultAtLocation [Line: 264]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [264] - GenericResultAtLocation [Line: 305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [305] - GenericResultAtLocation [Line: 370]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [370] - GenericResultAtLocation [Line: 569]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [569] - GenericResultAtLocation [Line: 935]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [935] - GenericResultAtLocation [Line: 944]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [944] * 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: 940]: 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, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1268 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1244 mSDsluCounter, 3285 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2099 mSDsCounter, 252 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 795 IncrementalHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 252 mSolverCounterUnsat, 1186 mSDtfsCounter, 795 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 432 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=538occurred in iteration=11, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 134 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 498 PreInvPairs, 533 NumberOfFragments, 570 HoareAnnotationTreeSize, 498 FomulaSimplifications, 341 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 20 FomulaSimplificationsInter, 1531 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 875 NumberOfCodeBlocks, 875 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 860 ConstructedInterpolants, 0 QuantifiedInterpolants, 1471 SizeOfPredicates, 8 NumberOfNonLiveVariables, 947 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 171/178 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: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel == 1))) || (((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (\result == 1)) && (tmp == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:31:44,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03eb3011-99ec-4a24-8285-9497fad0ea56/bin/uautomizer-verify-uTZkv6EMXl/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