./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:37:38,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:37:38,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:37:38,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:37:38,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:37:38,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:37:38,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:37:38,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:37:38,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:37:38,193 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:37:38,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:37:38,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:37:38,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:37:38,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:37:38,197 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:37:38,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:37:38,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:37:38,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:37:38,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:37:38,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:37:38,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:37:38,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:37:38,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:37:38,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:37:38,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:37:38,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:37:38,205 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:37:38,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:37:38,206 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:37:38,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:37:38,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:37:38,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:38,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:37:38,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:37:38,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:37:38,210 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:37:38,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:37:38,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:37:38,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:37:38,212 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:37:38,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:37:38,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:37:38,216 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_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 [2023-11-23 22:37:38,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:37:38,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:37:38,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:37:38,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:37:38,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:37:38,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2023-11-23 22:37:41,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:37:42,305 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:37:42,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2023-11-23 22:37:42,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/data/4cea77fb8/f34138cb7960436183b9ddc781f83068/FLAGaca7833b3 [2023-11-23 22:37:42,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/data/4cea77fb8/f34138cb7960436183b9ddc781f83068 [2023-11-23 22:37:42,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:37:42,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:37:42,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:42,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:37:42,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:37:42,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:42" (1/1) ... [2023-11-23 22:37:42,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdf9c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:42, skipping insertion in model container [2023-11-23 22:37:42,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:42" (1/1) ... [2023-11-23 22:37:42,443 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:37:42,836 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_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2023-11-23 22:37:42,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:42,859 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:37:42,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-11-23 22:37:42,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [224] [2023-11-23 22:37:42,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [294] [2023-11-23 22:37:42,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [660] [2023-11-23 22:37:42,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] [2023-11-23 22:37:42,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [840] [2023-11-23 22:37:42,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [875] [2023-11-23 22:37:42,876 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [884] [2023-11-23 22:37:42,985 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_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2023-11-23 22:37:42,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:43,020 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:37:43,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43 WrapperNode [2023-11-23 22:37:43,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:43,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:43,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:37:43,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:37:43,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,096 INFO L138 Inliner]: procedures = 52, calls = 97, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 154 [2023-11-23 22:37:43,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:43,098 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:37:43,098 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:37:43,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:37:43,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,117 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,150 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:37:43,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,158 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:37:43,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:37:43,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:37:43,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:37:43,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (1/1) ... [2023-11-23 22:37:43,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:43,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:43,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:37:43,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:37:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:37:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 22:37:43,299 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 22:37:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 22:37:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 22:37:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 22:37:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 22:37:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 22:37:43,300 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 22:37:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 22:37:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-23 22:37:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-23 22:37:43,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-23 22:37:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-23 22:37:43,303 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-23 22:37:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:37:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 22:37:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 22:37:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:37:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:37:43,441 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:37:43,446 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:37:43,765 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:37:43,900 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:37:43,900 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:37:43,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:43 BoogieIcfgContainer [2023-11-23 22:37:43,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:37:43,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:37:43,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:37:43,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:37:43,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:37:42" (1/3) ... [2023-11-23 22:37:43,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a764614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:43, skipping insertion in model container [2023-11-23 22:37:43,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:43" (2/3) ... [2023-11-23 22:37:43,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a764614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:43, skipping insertion in model container [2023-11-23 22:37:43,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:43" (3/3) ... [2023-11-23 22:37:43,914 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2023-11-23 22:37:43,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:37:43,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:37:44,025 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:37:44,035 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;@7bc3b8b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:37:44,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:37:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:37:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 22:37:44,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:44,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:44,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:44,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1973998854, now seen corresponding path program 1 times [2023-11-23 22:37:44,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:44,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963420146] [2023-11-23 22:37:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 22:37:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:44,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:44,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963420146] [2023-11-23 22:37:44,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963420146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:44,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:44,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:37:44,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079652020] [2023-11-23 22:37:44,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:44,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:37:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:37:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:37:44,430 INFO L87 Difference]: Start difference. First operand has 67 states, 44 states have (on average 1.5227272727272727) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:44,533 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2023-11-23 22:37:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:37:44,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 22:37:44,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:44,549 INFO L225 Difference]: With dead ends: 132 [2023-11-23 22:37:44,549 INFO L226 Difference]: Without dead ends: 62 [2023-11-23 22:37:44,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:37:44,560 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:44,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-23 22:37:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-23 22:37:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 47 states have internal predecessors, (57), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:37:44,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2023-11-23 22:37:44,636 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 17 [2023-11-23 22:37:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:44,637 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2023-11-23 22:37:44,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:44,638 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2023-11-23 22:37:44,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 22:37:44,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:44,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:44,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:37:44,644 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:44,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:44,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1409400026, now seen corresponding path program 1 times [2023-11-23 22:37:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:44,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289152896] [2023-11-23 22:37:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:44,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 22:37:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:44,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:44,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:44,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289152896] [2023-11-23 22:37:44,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289152896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:44,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:44,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:44,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134248620] [2023-11-23 22:37:44,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:44,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:44,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:44,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:44,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:44,829 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:44,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:44,867 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2023-11-23 22:37:44,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:44,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-23 22:37:44,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:44,869 INFO L225 Difference]: With dead ends: 94 [2023-11-23 22:37:44,870 INFO L226 Difference]: Without dead ends: 54 [2023-11-23 22:37:44,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:44,875 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:44,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 105 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-23 22:37:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-23 22:37:44,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 42 states have internal predecessors, (51), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 22:37:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2023-11-23 22:37:44,896 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 18 [2023-11-23 22:37:44,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:44,897 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2023-11-23 22:37:44,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2023-11-23 22:37:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 22:37:44,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:44,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:37:44,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:37:44,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:44,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:44,904 INFO L85 PathProgramCache]: Analyzing trace with hash 246620679, now seen corresponding path program 1 times [2023-11-23 22:37:44,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:44,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393494993] [2023-11-23 22:37:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:44,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 22:37:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:45,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:45,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393494993] [2023-11-23 22:37:45,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393494993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:45,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:45,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762754151] [2023-11-23 22:37:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:45,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:45,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:45,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:45,157 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:45,327 INFO L93 Difference]: Finished difference Result 158 states and 216 transitions. [2023-11-23 22:37:45,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:45,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-23 22:37:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:45,331 INFO L225 Difference]: With dead ends: 158 [2023-11-23 22:37:45,331 INFO L226 Difference]: Without dead ends: 106 [2023-11-23 22:37:45,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:45,334 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:45,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 172 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:37:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-23 22:37:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 89. [2023-11-23 22:37:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 70 states have internal predecessors, (88), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 12 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-23 22:37:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2023-11-23 22:37:45,358 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 21 [2023-11-23 22:37:45,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:45,358 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2023-11-23 22:37:45,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2023-11-23 22:37:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 22:37:45,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:45,362 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] [2023-11-23 22:37:45,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:37:45,363 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:45,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:45,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1182582526, now seen corresponding path program 1 times [2023-11-23 22:37:45,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:45,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579450248] [2023-11-23 22:37:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:45,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 22:37:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:45,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579450248] [2023-11-23 22:37:45,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579450248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:45,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:45,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:37:45,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743798685] [2023-11-23 22:37:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:45,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:37:45,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:37:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:37:45,478 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:45,552 INFO L93 Difference]: Finished difference Result 255 states and 354 transitions. [2023-11-23 22:37:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:37:45,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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 24 [2023-11-23 22:37:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:45,556 INFO L225 Difference]: With dead ends: 255 [2023-11-23 22:37:45,556 INFO L226 Difference]: Without dead ends: 168 [2023-11-23 22:37:45,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:37:45,559 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:45,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 172 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:45,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-23 22:37:45,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2023-11-23 22:37:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 113 states have (on average 1.407079646017699) internal successors, (159), 128 states have internal predecessors, (159), 30 states have call successors, (30), 24 states have call predecessors, (30), 22 states have return successors, (35), 22 states have call predecessors, (35), 30 states have call successors, (35) [2023-11-23 22:37:45,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 224 transitions. [2023-11-23 22:37:45,607 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 224 transitions. Word has length 24 [2023-11-23 22:37:45,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:45,607 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 224 transitions. [2023-11-23 22:37:45,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 224 transitions. [2023-11-23 22:37:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:37:45,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:45,620 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] [2023-11-23 22:37:45,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:37:45,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:45,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash -538556359, now seen corresponding path program 1 times [2023-11-23 22:37:45,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:45,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144651093] [2023-11-23 22:37:45,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:45,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 22:37:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:37:45,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:37:45,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:37:45,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144651093] [2023-11-23 22:37:45,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144651093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:37:45,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:37:45,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:37:45,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304245960] [2023-11-23 22:37:45,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:37:45,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:37:45,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:37:45,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:37:45,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:45,696 INFO L87 Difference]: Start difference. First operand 166 states and 224 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:37:45,745 INFO L93 Difference]: Finished difference Result 294 states and 405 transitions. [2023-11-23 22:37:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:37:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 26 [2023-11-23 22:37:45,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:37:45,748 INFO L225 Difference]: With dead ends: 294 [2023-11-23 22:37:45,748 INFO L226 Difference]: Without dead ends: 130 [2023-11-23 22:37:45,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:37:45,752 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:37:45,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:37:45,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-23 22:37:45,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2023-11-23 22:37:45,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 100 states have internal predecessors, (125), 18 states have call successors, (18), 18 states have call predecessors, (18), 16 states have return successors, (20), 16 states have call predecessors, (20), 18 states have call successors, (20) [2023-11-23 22:37:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 163 transitions. [2023-11-23 22:37:45,776 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 163 transitions. Word has length 26 [2023-11-23 22:37:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:37:45,777 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 163 transitions. [2023-11-23 22:37:45,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:37:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 163 transitions. [2023-11-23 22:37:45,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 22:37:45,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:37:45,779 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] [2023-11-23 22:37:45,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:37:45,779 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:37:45,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:37:45,780 INFO L85 PathProgramCache]: Analyzing trace with hash -486805948, now seen corresponding path program 1 times [2023-11-23 22:37:45,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:37:45,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114405759] [2023-11-23 22:37:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:37:45,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:37:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:37:45,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:37:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:37:45,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:37:45,866 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:37:45,866 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:37:45,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:37:45,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-23 22:37:45,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:37:45,914 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-23 22:37:45,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:37:45 BoogieIcfgContainer [2023-11-23 22:37:45,937 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:37:45,938 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:37:45,938 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:37:45,938 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:37:45,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:43" (3/4) ... [2023-11-23 22:37:45,940 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 22:37:45,961 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated [2023-11-23 22:37:46,024 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:37:46,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:37:46,025 INFO L158 Benchmark]: Toolchain (without parser) took 3668.93ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 94.0MB in the beginning and 123.7MB in the end (delta: -29.8MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,025 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 136.3MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:37:46,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 663.09ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 75.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.47ms. Allocated memory is still 136.3MB. Free memory was 74.8MB in the beginning and 72.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,026 INFO L158 Benchmark]: Boogie Preprocessor took 87.28ms. Allocated memory is still 136.3MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,027 INFO L158 Benchmark]: RCFGBuilder took 715.01ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 70.6MB in the beginning and 139.8MB in the end (delta: -69.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,027 INFO L158 Benchmark]: TraceAbstraction took 2031.21ms. Allocated memory is still 172.0MB. Free memory was 139.1MB in the beginning and 126.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,028 INFO L158 Benchmark]: Witness Printer took 86.42ms. Allocated memory is still 172.0MB. Free memory was 126.9MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:37:46,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 136.3MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 663.09ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 75.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.47ms. Allocated memory is still 136.3MB. Free memory was 74.8MB in the beginning and 72.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.28ms. Allocated memory is still 136.3MB. Free memory was 72.7MB in the beginning and 70.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 715.01ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 70.6MB in the beginning and 139.8MB in the end (delta: -69.2MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2031.21ms. Allocated memory is still 172.0MB. Free memory was 139.1MB in the beginning and 126.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 86.42ms. Allocated memory is still 172.0MB. Free memory was 126.9MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 224]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [224] - GenericResultAtLocation [Line: 294]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [294] - GenericResultAtLocation [Line: 660]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [660] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [741] - GenericResultAtLocation [Line: 840]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [840] - GenericResultAtLocation [Line: 875]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [875] - GenericResultAtLocation [Line: 884]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [884] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret48 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 880]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L464] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int waterLevel = 1; [L663] int methaneLevelCritical = 0; [L742] int cleanupTimeShifts = 4; [L818] int retValue_acc ; [L819] int tmp ; [L823] FCALL select_helpers() [L824] FCALL select_features() [L825] CALL, EXPR valid_product() [L911] int retValue_acc ; [L914] retValue_acc = 1 [L915] return (retValue_acc); [L825] RET, EXPR valid_product() [L825] tmp = valid_product() [L827] COND TRUE \read(tmp) [L829] FCALL setup() [L830] CALL runTest() [L809] CALL test() [L229] int splverifierCounter ; [L230] int tmp ; [L231] int tmp___0 ; [L232] int tmp___1 ; [L233] int tmp___2 ; [L236] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L238] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L240] COND TRUE splverifierCounter < 4 [L246] tmp = __VERIFIER_nondet_int() [L248] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L250] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L680] COND TRUE waterLevel < 2 [L681] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L250] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L256] tmp___0 = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L266] tmp___2 = __VERIFIER_nondet_int() [L268] COND FALSE !(\read(tmp___2)) [L272] tmp___1 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___1) [L276] CALL stopSystem() [L213] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] systemActive = 0 [L276] RET stopSystem() [L283] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L67] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L74] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L82] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L849] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] int retValue_acc ; [L704] retValue_acc = methaneLevelCritical [L705] return (retValue_acc); [L849] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L733] int retValue_acc ; [L736] retValue_acc = waterLevel [L737] return (retValue_acc); [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L165] int retValue_acc ; [L168] retValue_acc = pumpRunning [L169] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L880] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 562 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 264 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 298 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 22:37:46,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf36c3aa-84ef-4e62-83f2-9249e10b8b83/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE