./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme --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 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:06,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:06,834 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:44:06,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:06,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:06,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:06,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:06,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:06,869 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:44:06,870 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:44:06,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:06,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:06,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:06,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:06,873 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:06,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:06,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:06,875 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:06,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:06,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:06,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:06,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:06,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:06,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:06,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:06,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:06,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:06,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:06,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:06,882 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:44:06,882 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:06,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:06,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:06,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:06,885 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:06,885 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:06,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:06,886 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:06,886 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:06,887 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:06,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:06,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:06,888 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_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2023-11-26 11:44:07,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:07,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:07,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:07,140 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:07,141 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:07,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2023-11-26 11:44:10,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:10,683 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:10,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2023-11-26 11:44:10,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/data/aa4d1f7e9/3b0512fd43f84cf285eb9e3315a1d668/FLAG1b9d95e17 [2023-11-26 11:44:10,723 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/data/aa4d1f7e9/3b0512fd43f84cf285eb9e3315a1d668 [2023-11-26 11:44:10,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:10,729 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:10,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:10,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:10,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:10,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:10" (1/1) ... [2023-11-26 11:44:10,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445abe6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:10, skipping insertion in model container [2023-11-26 11:44:10,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:10" (1/1) ... [2023-11-26 11:44:10,796 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:11,163 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_15670b2b-079f-4d65-90e2-7c3afd3c14ff/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2023-11-26 11:44:11,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:11,187 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:11,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-26 11:44:11,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-11-26 11:44:11,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] [2023-11-26 11:44:11,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] [2023-11-26 11:44:11,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2023-11-26 11:44:11,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] [2023-11-26 11:44:11,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] [2023-11-26 11:44:11,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2023-11-26 11:44:11,308 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_15670b2b-079f-4d65-90e2-7c3afd3c14ff/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2023-11-26 11:44:11,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:11,331 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:11,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11 WrapperNode [2023-11-26 11:44:11,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:11,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:11,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:11,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:11,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,404 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2023-11-26 11:44:11,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:11,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:11,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:11,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:11,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,452 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:44:11,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:11,478 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:11,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:11,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:11,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (1/1) ... [2023-11-26 11:44:11,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:11,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:11,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:11,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 11:44:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 11:44:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:44:11,629 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:44:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 11:44:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 11:44:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:44:11,630 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:44:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:44:11,631 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:44:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:44:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:44:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:44:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:11,783 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:11,786 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:12,086 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:12,181 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:12,182 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:44:12,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:12 BoogieIcfgContainer [2023-11-26 11:44:12,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:12,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:12,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:12,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:12,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:10" (1/3) ... [2023-11-26 11:44:12,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f564640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:12, skipping insertion in model container [2023-11-26 11:44:12,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:11" (2/3) ... [2023-11-26 11:44:12,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f564640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:12, skipping insertion in model container [2023-11-26 11:44:12,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:12" (3/3) ... [2023-11-26 11:44:12,195 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2023-11-26 11:44:12,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:12,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:44:12,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:12,311 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;@7fa066a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:12,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:44:12,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:44:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:44:12,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:12,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:12,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:12,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,335 INFO L85 PathProgramCache]: Analyzing trace with hash 225823669, now seen corresponding path program 1 times [2023-11-26 11:44:12,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265564058] [2023-11-26 11:44:12,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:44:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:12,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:12,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265564058] [2023-11-26 11:44:12,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265564058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:12,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:12,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629855486] [2023-11-26 11:44:12,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:12,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:44:12,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:44:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:44:12,636 INFO L87 Difference]: Start difference. First operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-26 11:44:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:12,719 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2023-11-26 11:44:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:44:12,723 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 [2023-11-26 11:44:12,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:12,735 INFO L225 Difference]: With dead ends: 124 [2023-11-26 11:44:12,735 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 11:44:12,740 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 [2023-11-26 11:44:12,745 INFO L413 NwaCegarLoop]: 72 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, 72 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 [2023-11-26 11:44:12,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:44:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 11:44:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-26 11:44:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 47 states have internal predecessors, (60), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:44:12,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-26 11:44:12,806 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-11-26 11:44:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:12,806 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-26 11:44:12,807 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) [2023-11-26 11:44:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-11-26 11:44:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:44:12,811 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:12,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:12,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:12,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:12,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash -438802985, now seen corresponding path program 1 times [2023-11-26 11:44:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138443461] [2023-11-26 11:44:12,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:44:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:12,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:12,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:12,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138443461] [2023-11-26 11:44:12,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138443461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:12,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:12,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:12,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051869919] [2023-11-26 11:44:12,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:12,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:12,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:12,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:12,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:12,972 INFO L87 Difference]: Start difference. First operand 58 states and 79 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) [2023-11-26 11:44:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,010 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2023-11-26 11:44:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:13,011 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 [2023-11-26 11:44:13,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,013 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:44:13,013 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 11:44:13,014 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 [2023-11-26 11:44:13,016 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:13,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 102 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:44:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 11:44:13,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-26 11:44:13,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 42 states have internal predecessors, (54), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:44:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2023-11-26 11:44:13,028 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 18 [2023-11-26 11:44:13,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,028 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2023-11-26 11:44:13,029 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) [2023-11-26 11:44:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2023-11-26 11:44:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:44:13,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,031 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] [2023-11-26 11:44:13,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:13,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:13,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1374327041, now seen corresponding path program 1 times [2023-11-26 11:44:13,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434637661] [2023-11-26 11:44:13,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:13,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434637661] [2023-11-26 11:44:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434637661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357394655] [2023-11-26 11:44:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:13,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:13,247 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:44:13,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,294 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-11-26 11:44:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 11:44:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,296 INFO L225 Difference]: With dead ends: 98 [2023-11-26 11:44:13,297 INFO L226 Difference]: Without dead ends: 50 [2023-11-26 11:44:13,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:13,300 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 56 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 [2023-11-26 11:44:13,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 56 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:44:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-26 11:44:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-26 11:44:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 42 states have internal predecessors, (53), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:44:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-11-26 11:44:13,313 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 21 [2023-11-26 11:44:13,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,313 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-11-26 11:44:13,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:44:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-11-26 11:44:13,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 11:44:13,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,316 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] [2023-11-26 11:44:13,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:13,316 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:13,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,317 INFO L85 PathProgramCache]: Analyzing trace with hash -435334036, now seen corresponding path program 1 times [2023-11-26 11:44:13,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579015472] [2023-11-26 11:44:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:44:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:44:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:13,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579015472] [2023-11-26 11:44:13,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579015472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:13,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626925604] [2023-11-26 11:44:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:13,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:13,377 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:44:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,434 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-11-26 11:44:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:13,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-26 11:44:13,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,437 INFO L225 Difference]: With dead ends: 134 [2023-11-26 11:44:13,437 INFO L226 Difference]: Without dead ends: 86 [2023-11-26 11:44:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:13,440 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 57 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:13,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 104 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:44:13,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-26 11:44:13,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-26 11:44:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.403225806451613) internal successors, (87), 69 states have internal predecessors, (87), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-26 11:44:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-11-26 11:44:13,461 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 26 [2023-11-26 11:44:13,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,462 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-11-26 11:44:13,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:44:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-11-26 11:44:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 11:44:13,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,465 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] [2023-11-26 11:44:13,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:13,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:13,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1966722297, now seen corresponding path program 1 times [2023-11-26 11:44:13,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417791002] [2023-11-26 11:44:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 11:44:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 11:44:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:13,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417791002] [2023-11-26 11:44:13,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417791002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:44:13,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802954935] [2023-11-26 11:44:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:44:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:44:13,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:44:13,677 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:44:13,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,864 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2023-11-26 11:44:13,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:44:13,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-26 11:44:13,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,872 INFO L225 Difference]: With dead ends: 242 [2023-11-26 11:44:13,873 INFO L226 Difference]: Without dead ends: 160 [2023-11-26 11:44:13,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:13,885 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:13,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 154 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:13,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-26 11:44:13,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2023-11-26 11:44:13,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 states have internal predecessors, (160), 22 states have call successors, (22), 20 states have call predecessors, (22), 18 states have return successors, (30), 20 states have call predecessors, (30), 22 states have call successors, (30) [2023-11-26 11:44:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2023-11-26 11:44:13,937 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 31 [2023-11-26 11:44:13,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,941 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2023-11-26 11:44:13,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:44:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2023-11-26 11:44:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 11:44:13,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,948 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] [2023-11-26 11:44:13,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:13,950 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:13,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash -802325487, now seen corresponding path program 1 times [2023-11-26 11:44:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768277498] [2023-11-26 11:44:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 11:44:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-26 11:44:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:14,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768277498] [2023-11-26 11:44:14,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768277498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:14,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:14,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:14,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235089414] [2023-11-26 11:44:14,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:14,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:14,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:14,122 INFO L87 Difference]: Start difference. First operand 158 states and 212 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:14,387 INFO L93 Difference]: Finished difference Result 393 states and 534 transitions. [2023-11-26 11:44:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-26 11:44:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:14,396 INFO L225 Difference]: With dead ends: 393 [2023-11-26 11:44:14,396 INFO L226 Difference]: Without dead ends: 237 [2023-11-26 11:44:14,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:44:14,408 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 77 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:14,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 211 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:44:14,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-26 11:44:14,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 222. [2023-11-26 11:44:14,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 186 states have internal predecessors, (223), 31 states have call successors, (31), 20 states have call predecessors, (31), 24 states have return successors, (47), 29 states have call predecessors, (47), 31 states have call successors, (47) [2023-11-26 11:44:14,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 301 transitions. [2023-11-26 11:44:14,471 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 301 transitions. Word has length 35 [2023-11-26 11:44:14,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:14,472 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 301 transitions. [2023-11-26 11:44:14,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:14,472 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 301 transitions. [2023-11-26 11:44:14,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 11:44:14,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:14,481 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] [2023-11-26 11:44:14,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:44:14,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:14,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1823393841, now seen corresponding path program 1 times [2023-11-26 11:44:14,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:14,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444561074] [2023-11-26 11:44:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:14,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 11:44:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-26 11:44:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:14,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444561074] [2023-11-26 11:44:14,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444561074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:14,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:14,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:44:14,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36380274] [2023-11-26 11:44:14,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:14,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:14,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:14,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:14,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:14,619 INFO L87 Difference]: Start difference. First operand 222 states and 301 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:14,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:14,870 INFO L93 Difference]: Finished difference Result 449 states and 616 transitions. [2023-11-26 11:44:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:44:14,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-26 11:44:14,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:14,873 INFO L225 Difference]: With dead ends: 449 [2023-11-26 11:44:14,873 INFO L226 Difference]: Without dead ends: 229 [2023-11-26 11:44:14,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:44:14,876 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:14,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 165 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:44:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-26 11:44:14,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 222. [2023-11-26 11:44:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 169 states have (on average 1.3254437869822486) internal successors, (224), 187 states have internal predecessors, (224), 29 states have call successors, (29), 19 states have call predecessors, (29), 23 states have return successors, (45), 27 states have call predecessors, (45), 29 states have call successors, (45) [2023-11-26 11:44:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 298 transitions. [2023-11-26 11:44:14,903 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 298 transitions. Word has length 35 [2023-11-26 11:44:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:14,912 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 298 transitions. [2023-11-26 11:44:14,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 298 transitions. [2023-11-26 11:44:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 11:44:14,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:14,914 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:14,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:44:14,915 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:14,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1474385726, now seen corresponding path program 1 times [2023-11-26 11:44:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941423358] [2023-11-26 11:44:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:14,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 11:44:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:44:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:15,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:15,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941423358] [2023-11-26 11:44:15,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941423358] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:15,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113296567] [2023-11-26 11:44:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:15,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:15,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:15,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:44:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:44:15,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:15,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:15,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:15,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113296567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:15,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:15,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-11-26 11:44:15,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463725243] [2023-11-26 11:44:15,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:15,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:15,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:44:15,301 INFO L87 Difference]: Start difference. First operand 222 states and 298 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:15,440 INFO L93 Difference]: Finished difference Result 633 states and 866 transitions. [2023-11-26 11:44:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:15,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-26 11:44:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:15,446 INFO L225 Difference]: With dead ends: 633 [2023-11-26 11:44:15,446 INFO L226 Difference]: Without dead ends: 413 [2023-11-26 11:44:15,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:44:15,449 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:15,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 269 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:15,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-26 11:44:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2023-11-26 11:44:15,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 312 states have (on average 1.3012820512820513) internal successors, (406), 342 states have internal predecessors, (406), 55 states have call successors, (55), 37 states have call predecessors, (55), 43 states have return successors, (87), 51 states have call predecessors, (87), 55 states have call successors, (87) [2023-11-26 11:44:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 548 transitions. [2023-11-26 11:44:15,501 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 548 transitions. Word has length 38 [2023-11-26 11:44:15,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:15,502 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 548 transitions. [2023-11-26 11:44:15,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:15,502 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 548 transitions. [2023-11-26 11:44:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 11:44:15,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:15,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:15,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:44:15,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:15,711 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:15,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:15,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1740814692, now seen corresponding path program 1 times [2023-11-26 11:44:15,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:15,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326607520] [2023-11-26 11:44:15,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 11:44:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 11:44:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:44:15,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326607520] [2023-11-26 11:44:15,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326607520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:15,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:15,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:15,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122796497] [2023-11-26 11:44:15,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:15,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:15,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:15,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:15,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:15,799 INFO L87 Difference]: Start difference. First operand 411 states and 548 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:16,004 INFO L93 Difference]: Finished difference Result 755 states and 1018 transitions. [2023-11-26 11:44:16,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:16,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-26 11:44:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:16,006 INFO L225 Difference]: With dead ends: 755 [2023-11-26 11:44:16,006 INFO L226 Difference]: Without dead ends: 140 [2023-11-26 11:44:16,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:44:16,010 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 93 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:16,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 203 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-26 11:44:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 132. [2023-11-26 11:44:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 107 states have internal predecessors, (123), 17 states have call successors, (17), 15 states have call predecessors, (17), 15 states have return successors, (21), 15 states have call predecessors, (21), 17 states have call successors, (21) [2023-11-26 11:44:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 161 transitions. [2023-11-26 11:44:16,023 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 161 transitions. Word has length 38 [2023-11-26 11:44:16,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:16,024 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 161 transitions. [2023-11-26 11:44:16,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:44:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 161 transitions. [2023-11-26 11:44:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 11:44:16,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:16,025 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:16,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:44:16,025 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:44:16,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1154635206, now seen corresponding path program 1 times [2023-11-26 11:44:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:16,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875005512] [2023-11-26 11:44:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:16,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 11:44:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 11:44:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-26 11:44:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 11:44:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:16,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:16,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:16,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875005512] [2023-11-26 11:44:16,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875005512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:16,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:16,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-26 11:44:16,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309479709] [2023-11-26 11:44:16,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:16,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 11:44:16,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:16,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 11:44:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:44:16,230 INFO L87 Difference]: Start difference. First operand 132 states and 161 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:44:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:16,705 INFO L93 Difference]: Finished difference Result 258 states and 318 transitions. [2023-11-26 11:44:16,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:44:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-26 11:44:16,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:16,708 INFO L225 Difference]: With dead ends: 258 [2023-11-26 11:44:16,708 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:44:16,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-11-26 11:44:16,711 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 195 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:16,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 181 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:44:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:44:16,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:44:16,714 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) [2023-11-26 11:44:16,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:44:16,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-11-26 11:44:16,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:16,716 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:44:16,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:44:16,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:44:16,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:44:16,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:44:16,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:44:16,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:44:18,398 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2023-11-26 11:44:18,398 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2023-11-26 11:44:18,398 INFO L899 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2023-11-26 11:44:18,399 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 398 409) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 1))) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse2 (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1))))) [2023-11-26 11:44:18,399 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2023-11-26 11:44:18,399 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2023-11-26 11:44:18,399 INFO L902 garLoopResultBuilder]: At program point L481-1(lines 481 485) the Hoare annotation is: true [2023-11-26 11:44:18,400 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 467 496) no Hoare annotation was computed. [2023-11-26 11:44:18,400 INFO L902 garLoopResultBuilder]: At program point L477-2(lines 477 491) the Hoare annotation is: true [2023-11-26 11:44:18,400 INFO L902 garLoopResultBuilder]: At program point L473(line 473) the Hoare annotation is: true [2023-11-26 11:44:18,400 INFO L899 garLoopResultBuilder]: For program point L473-1(line 473) no Hoare annotation was computed. [2023-11-26 11:44:18,400 INFO L899 garLoopResultBuilder]: For program point L492(lines 467 496) no Hoare annotation was computed. [2023-11-26 11:44:18,400 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 467 496) the Hoare annotation is: true [2023-11-26 11:44:18,400 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2023-11-26 11:44:18,401 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 418) the Hoare annotation is: true [2023-11-26 11:44:18,401 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 410 418) no Hoare annotation was computed. [2023-11-26 11:44:18,401 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 366) no Hoare annotation was computed. [2023-11-26 11:44:18,401 INFO L899 garLoopResultBuilder]: For program point L353-1(lines 338 370) no Hoare annotation was computed. [2023-11-26 11:44:18,401 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-26 11:44:18,401 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (<= ~waterLevel~0 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse7 .cse3 .cse9)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (and .cse3 .cse9 .cse2))) (and (or .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse3 .cse1) (or .cse4 .cse5 .cse0 .cse6 (not (= ~methaneLevelCritical~0 0))) (let ((.cse8 (= |timeShift_isHighWaterSensorDry_#res#1| 0))) (or .cse4 .cse5 .cse0 .cse6 (not (= ~methaneLevelCritical~0 1)) (and .cse7 .cse8 .cse9) (and .cse8 .cse9 .cse2)))))) [2023-11-26 11:44:18,402 INFO L899 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2023-11-26 11:44:18,402 INFO L899 garLoopResultBuilder]: For program point L345-1(line 345) no Hoare annotation was computed. [2023-11-26 11:44:18,402 INFO L895 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2023-11-26 11:44:18,403 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (not (= |timeShift_processEnvironment_~tmp~0#1| 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and .cse3 (<= ~waterLevel~0 1) .cse4 .cse5))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse1 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2 (and .cse3 .cse4 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse5))))) [2023-11-26 11:44:18,403 INFO L899 garLoopResultBuilder]: For program point L197-1(line 197) no Hoare annotation was computed. [2023-11-26 11:44:18,403 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-11-26 11:44:18,403 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 451 464) no Hoare annotation was computed. [2023-11-26 11:44:18,403 INFO L895 garLoopResultBuilder]: At program point L152(line 152) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1))) (or .cse1 .cse2 (= ~pumpRunning~0 1)) (or (< 1 |old(~waterLevel~0)|) .cse1 (<= ~waterLevel~0 1) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2023-11-26 11:44:18,403 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2023-11-26 11:44:18,404 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 367) no Hoare annotation was computed. [2023-11-26 11:44:18,407 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 118) no Hoare annotation was computed. [2023-11-26 11:44:18,408 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2023-11-26 11:44:18,408 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 149) no Hoare annotation was computed. [2023-11-26 11:44:18,408 INFO L899 garLoopResultBuilder]: For program point L174-2(lines 167 183) no Hoare annotation was computed. [2023-11-26 11:44:18,408 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 101 124) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse3)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (and .cse3 (= ~pumpRunning~0 1)))))) [2023-11-26 11:44:18,408 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 154) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 261) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point L257-2(lines 257 261) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 104 123) no Hoare annotation was computed. [2023-11-26 11:44:18,409 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2023-11-26 11:44:18,410 INFO L899 garLoopResultBuilder]: For program point L548(lines 548 555) no Hoare annotation was computed. [2023-11-26 11:44:18,410 INFO L899 garLoopResultBuilder]: For program point L548-2(lines 548 555) no Hoare annotation was computed. [2023-11-26 11:44:18,410 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 321) no Hoare annotation was computed. [2023-11-26 11:44:18,410 INFO L895 garLoopResultBuilder]: At program point L317-2(lines 311 322) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-11-26 11:44:18,410 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 307) no Hoare annotation was computed. [2023-11-26 11:44:18,410 INFO L899 garLoopResultBuilder]: For program point L301-1(lines 301 307) no Hoare annotation was computed. [2023-11-26 11:44:18,411 INFO L899 garLoopResultBuilder]: For program point L330(lines 271 334) no Hoare annotation was computed. [2023-11-26 11:44:18,411 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2023-11-26 11:44:18,411 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:44:18,411 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:44:18,411 INFO L895 garLoopResultBuilder]: At program point L327(lines 280 328) the Hoare annotation is: false [2023-11-26 11:44:18,411 INFO L899 garLoopResultBuilder]: For program point L282(lines 281 326) no Hoare annotation was computed. [2023-11-26 11:44:18,411 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 322) no Hoare annotation was computed. [2023-11-26 11:44:18,412 INFO L895 garLoopResultBuilder]: At program point L303(line 303) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-11-26 11:44:18,412 INFO L895 garLoopResultBuilder]: At program point L324(lines 281 326) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2023-11-26 11:44:18,412 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2023-11-26 11:44:18,412 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2023-11-26 11:44:18,413 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2023-11-26 11:44:18,413 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse1 (not (= ~pumpRunning~0 1)) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2))) [2023-11-26 11:44:18,413 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2023-11-26 11:44:18,416 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:18,419 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:44:18,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:44:18 BoogieIcfgContainer [2023-11-26 11:44:18,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:44:18,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:44:18,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:44:18,441 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:44:18,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:12" (3/4) ... [2023-11-26 11:44:18,444 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:44:18,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 11:44:18,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 11:44:18,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 11:44:18,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-26 11:44:18,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 11:44:18,451 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 11:44:18,471 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-26 11:44:18,472 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 11:44:18,473 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:44:18,474 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:44:18,475 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:44:18,623 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:44:18,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:44:18,624 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:44:18,625 INFO L158 Benchmark]: Toolchain (without parser) took 7896.25ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 101.6MB in the beginning and 91.8MB in the end (delta: 9.8MB). Peak memory consumption was 73.7MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,626 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:44:18,626 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.88ms. Allocated memory is still 134.2MB. Free memory was 101.1MB in the beginning and 81.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.47ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,627 INFO L158 Benchmark]: Boogie Preprocessor took 71.34ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,628 INFO L158 Benchmark]: RCFGBuilder took 705.23ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 56.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,629 INFO L158 Benchmark]: TraceAbstraction took 6253.36ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 56.0MB in the beginning and 99.2MB in the end (delta: -43.1MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,630 INFO L158 Benchmark]: Witness Printer took 184.03ms. Allocated memory is still 195.0MB. Free memory was 99.2MB in the beginning and 91.8MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:44:18,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.88ms. Allocated memory is still 134.2MB. Free memory was 101.1MB in the beginning and 81.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.47ms. Allocated memory is still 134.2MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.34ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 705.23ms. Allocated memory is still 134.2MB. Free memory was 77.5MB in the beginning and 56.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6253.36ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 56.0MB in the beginning and 99.2MB in the end (delta: -43.1MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Witness Printer took 184.03ms. Allocated memory is still 195.0MB. Free memory was 99.2MB in the beginning and 91.8MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 267]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 465]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] * 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: 932]: 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 7 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 1517 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 949 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 896 IncrementalHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 568 mSDtfsCounter, 896 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=8, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 408 PreInvPairs, 473 NumberOfFragments, 617 HoareAnnotationTreeSize, 408 FomulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1673 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 619 SizeOfPredicates, 3 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 7/8 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: 477]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) || (((1 == systemActive) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-26 11:44:18,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15670b2b-079f-4d65-90e2-7c3afd3c14ff/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE