./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX --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 bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:45:09,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:45:09,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:45:09,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:45:09,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:45:09,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:45:09,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:45:09,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:45:09,632 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:45:09,633 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:45:09,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:45:09,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:45:09,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:45:09,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:45:09,635 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:45:09,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:45:09,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:45:09,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:45:09,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:45:09,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:45:09,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:45:09,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:45:09,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:45:09,646 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:45:09,646 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:45:09,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:45:09,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:45:09,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:45:09,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:45:09,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:45:09,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:45:09,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:45:09,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:45:09,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:45:09,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:45:09,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:45:09,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:45:09,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:45:09,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:45:09,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:45:09,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:45:09,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:45:09,653 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_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd7f84863cb412e83f8c5773a09de3282aa45b8f86409f0c880aae27635b0b5f [2024-11-08 17:45:09,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:45:09,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:45:09,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:45:09,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:45:09,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:45:09,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c Unable to find full path for "g++" [2024-11-08 17:45:12,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:45:12,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:45:12,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c [2024-11-08 17:45:12,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/data/4620fc9d8/0b7ad3a54f604d47a69d6e59da739983/FLAGcbfff1098 [2024-11-08 17:45:12,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/data/4620fc9d8/0b7ad3a54f604d47a69d6e59da739983 [2024-11-08 17:45:12,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:45:12,574 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:45:12,576 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:45:12,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:45:12,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:45:12,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:12" (1/1) ... [2024-11-08 17:45:12,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca84f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:12, skipping insertion in model container [2024-11-08 17:45:12,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:45:12" (1/1) ... [2024-11-08 17:45:12,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:45:13,060 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c[1605,1618] [2024-11-08 17:45:13,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:45:13,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:45:13,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-08 17:45:13,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-11-08 17:45:13,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [208] [2024-11-08 17:45:13,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [278] [2024-11-08 17:45:13,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [305] [2024-11-08 17:45:13,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [385] [2024-11-08 17:45:13,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [484] [2024-11-08 17:45:13,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [850] [2024-11-08 17:45:13,215 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/sv-benchmarks/c/product-lines/minepump_spec4_product11.cil.c[1605,1618] [2024-11-08 17:45:13,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:45:13,342 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:45:13,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13 WrapperNode [2024-11-08 17:45:13,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:45:13,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:45:13,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:45:13,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:45:13,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,372 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,421 INFO L138 Inliner]: procedures = 51, calls = 92, calls flagged for inlining = 22, calls inlined = 16, statements flattened = 139 [2024-11-08 17:45:13,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:45:13,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:45:13,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:45:13,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:45:13,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,436 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,450 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 17:45:13,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,460 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,462 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:45:13,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:45:13,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:45:13,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:45:13,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (1/1) ... [2024-11-08 17:45:13,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:45:13,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:45:13,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:45:13,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:45:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:45:13,547 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 17:45:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 17:45:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 17:45:13,548 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 17:45:13,548 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 17:45:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 17:45:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:45:13,549 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 17:45:13,549 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 17:45:13,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:45:13,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:45:13,629 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:45:13,632 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:45:13,888 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 17:45:13,888 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:45:13,903 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:45:13,904 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 17:45:13,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:13 BoogieIcfgContainer [2024-11-08 17:45:13,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:45:13,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:45:13,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:45:13,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:45:13,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:45:12" (1/3) ... [2024-11-08 17:45:13,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bf2646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:13, skipping insertion in model container [2024-11-08 17:45:13,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:45:13" (2/3) ... [2024-11-08 17:45:13,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67bf2646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:45:13, skipping insertion in model container [2024-11-08 17:45:13,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:13" (3/3) ... [2024-11-08 17:45:13,914 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product11.cil.c [2024-11-08 17:45:13,928 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:45:13,928 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:45:14,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:45:14,024 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@58e8a520, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:45:14,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:45:14,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 17:45:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:45:14,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:14,038 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:14,038 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:14,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash 93431607, now seen corresponding path program 1 times [2024-11-08 17:45:14,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:14,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632231640] [2024-11-08 17:45:14,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:14,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:14,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:14,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632231640] [2024-11-08 17:45:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632231640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:14,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:45:14,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414685633] [2024-11-08 17:45:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:45:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:14,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:45:14,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:45:14,309 INFO L87 Difference]: Start difference. First operand has 62 states, 50 states have (on average 1.4) internal successors, (70), 54 states have internal predecessors, (70), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:14,333 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2024-11-08 17:45:14,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:45:14,336 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-08 17:45:14,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:14,343 INFO L225 Difference]: With dead ends: 116 [2024-11-08 17:45:14,343 INFO L226 Difference]: Without dead ends: 53 [2024-11-08 17:45:14,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:45:14,354 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:14,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:45:14,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-08 17:45:14,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-08 17:45:14,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.302325581395349) internal successors, (56), 46 states have internal predecessors, (56), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 17:45:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2024-11-08 17:45:14,404 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 19 [2024-11-08 17:45:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:14,405 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2024-11-08 17:45:14,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2024-11-08 17:45:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:45:14,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:14,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:14,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:45:14,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:14,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1319297493, now seen corresponding path program 1 times [2024-11-08 17:45:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:14,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989496258] [2024-11-08 17:45:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:14,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:14,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:14,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:14,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989496258] [2024-11-08 17:45:14,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989496258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:14,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:14,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:45:14,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410205162] [2024-11-08 17:45:14,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:14,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:45:14,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:14,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:45:14,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:14,590 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:14,608 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2024-11-08 17:45:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:45:14,610 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-08 17:45:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:14,611 INFO L225 Difference]: With dead ends: 68 [2024-11-08 17:45:14,611 INFO L226 Difference]: Without dead ends: 44 [2024-11-08 17:45:14,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:14,613 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:14,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:45:14,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-08 17:45:14,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-08 17:45:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 40 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:45:14,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2024-11-08 17:45:14,621 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 55 transitions. Word has length 20 [2024-11-08 17:45:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:14,621 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 55 transitions. [2024-11-08 17:45:14,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2024-11-08 17:45:14,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 17:45:14,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:14,623 INFO L215 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] [2024-11-08 17:45:14,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:45:14,623 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:14,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash -110636615, now seen corresponding path program 1 times [2024-11-08 17:45:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375321027] [2024-11-08 17:45:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:14,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:14,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375321027] [2024-11-08 17:45:14,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375321027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:14,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:14,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:45:14,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375293164] [2024-11-08 17:45:14,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:14,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:45:14,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:45:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:14,816 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:14,839 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2024-11-08 17:45:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:45:14,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-08 17:45:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:14,842 INFO L225 Difference]: With dead ends: 117 [2024-11-08 17:45:14,842 INFO L226 Difference]: Without dead ends: 80 [2024-11-08 17:45:14,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:14,844 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:14,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 99 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:45:14,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-08 17:45:14,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-11-08 17:45:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 67 states have internal predecessors, (84), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 17:45:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2024-11-08 17:45:14,862 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2024-11-08 17:45:14,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:14,862 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2024-11-08 17:45:14,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2024-11-08 17:45:14,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 17:45:14,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:14,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:14,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:45:14,864 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:14,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:14,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1126180567, now seen corresponding path program 1 times [2024-11-08 17:45:14,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:14,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974902973] [2024-11-08 17:45:14,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:14,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:15,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:15,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974902973] [2024-11-08 17:45:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974902973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:15,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:15,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:45:15,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101955408] [2024-11-08 17:45:15,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:15,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:45:15,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:45:15,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:45:15,083 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:15,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:15,399 INFO L93 Difference]: Finished difference Result 237 states and 320 transitions. [2024-11-08 17:45:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:45:15,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-08 17:45:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:15,412 INFO L225 Difference]: With dead ends: 237 [2024-11-08 17:45:15,412 INFO L226 Difference]: Without dead ends: 169 [2024-11-08 17:45:15,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:45:15,414 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 99 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:15,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 252 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:45:15,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-08 17:45:15,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 133. [2024-11-08 17:45:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 110 states have (on average 1.3454545454545455) internal successors, (148), 119 states have internal predecessors, (148), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (14), 12 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-08 17:45:15,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2024-11-08 17:45:15,462 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 25 [2024-11-08 17:45:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:15,463 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2024-11-08 17:45:15,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:15,463 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2024-11-08 17:45:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 17:45:15,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:15,465 INFO L215 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] [2024-11-08 17:45:15,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:45:15,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:15,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1553363204, now seen corresponding path program 1 times [2024-11-08 17:45:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742255547] [2024-11-08 17:45:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:15,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:15,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742255547] [2024-11-08 17:45:15,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742255547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:15,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:15,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:45:15,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144321542] [2024-11-08 17:45:15,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:15,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:45:15,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:15,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:45:15,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:15,519 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:15,556 INFO L93 Difference]: Finished difference Result 249 states and 327 transitions. [2024-11-08 17:45:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:45:15,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-08 17:45:15,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:15,560 INFO L225 Difference]: With dead ends: 249 [2024-11-08 17:45:15,560 INFO L226 Difference]: Without dead ends: 123 [2024-11-08 17:45:15,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:45:15,562 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:15,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:45:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-08 17:45:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-08 17:45:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 109 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 12 states have return successors, (12), 12 states have call predecessors, (12), 10 states have call successors, (12) [2024-11-08 17:45:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2024-11-08 17:45:15,583 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 27 [2024-11-08 17:45:15,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:15,583 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2024-11-08 17:45:15,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:15,584 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2024-11-08 17:45:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 17:45:15,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:15,588 INFO L215 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] [2024-11-08 17:45:15,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 17:45:15,588 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:15,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:15,589 INFO L85 PathProgramCache]: Analyzing trace with hash -235804861, now seen corresponding path program 1 times [2024-11-08 17:45:15,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:15,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417122103] [2024-11-08 17:45:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:15,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:15,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:45:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:15,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:15,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417122103] [2024-11-08 17:45:15,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417122103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:45:15,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:45:15,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:45:15,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449576354] [2024-11-08 17:45:15,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:45:15,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:45:15,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:15,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:45:15,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:45:15,815 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:45:16,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:16,058 INFO L93 Difference]: Finished difference Result 349 states and 439 transitions. [2024-11-08 17:45:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:45:16,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 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 29 [2024-11-08 17:45:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:16,061 INFO L225 Difference]: With dead ends: 349 [2024-11-08 17:45:16,062 INFO L226 Difference]: Without dead ends: 233 [2024-11-08 17:45:16,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:45:16,067 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 97 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:16,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 234 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:45:16,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-08 17:45:16,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 180. [2024-11-08 17:45:16,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 145 states have (on average 1.2689655172413794) internal successors, (184), 158 states have internal predecessors, (184), 16 states have call successors, (16), 16 states have call predecessors, (16), 18 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-08 17:45:16,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 218 transitions. [2024-11-08 17:45:16,120 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 218 transitions. Word has length 29 [2024-11-08 17:45:16,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:16,120 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 218 transitions. [2024-11-08 17:45:16,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 17:45:16,120 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 218 transitions. [2024-11-08 17:45:16,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 17:45:16,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:45:16,122 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:16,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:45:16,123 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:45:16,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:45:16,123 INFO L85 PathProgramCache]: Analyzing trace with hash 678480278, now seen corresponding path program 1 times [2024-11-08 17:45:16,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:45:16,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229464388] [2024-11-08 17:45:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:16,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:45:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:16,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:45:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:16,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 17:45:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:16,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 17:45:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:45:16,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:45:16,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229464388] [2024-11-08 17:45:16,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229464388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:45:16,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40634711] [2024-11-08 17:45:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:45:16,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:45:16,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:45:16,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:45:16,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:45:16,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:45:16,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 17:45:16,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:45:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:45:16,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:45:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:45:17,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40634711] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:45:17,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:45:17,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 7] total 14 [2024-11-08 17:45:17,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790955472] [2024-11-08 17:45:17,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:45:17,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:45:17,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:45:17,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:45:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-08 17:45:17,257 INFO L87 Difference]: Start difference. First operand 180 states and 218 transitions. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:45:17,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:45:17,525 INFO L93 Difference]: Finished difference Result 237 states and 290 transitions. [2024-11-08 17:45:17,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:45:17,526 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2024-11-08 17:45:17,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:45:17,527 INFO L225 Difference]: With dead ends: 237 [2024-11-08 17:45:17,527 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:45:17,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:45:17,529 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 102 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:45:17,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 324 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:45:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:45:17,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:45:17,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:45:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:45:17,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-08 17:45:17,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:45:17,532 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:45:17,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 13 states have internal predecessors, (86), 5 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 17:45:17,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:45:17,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:45:17,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:45:17,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:45:17,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:45:17,743 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:45:17,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:45:18,731 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:45:18,777 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~waterLevel~0)| 1)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0)))) [2024-11-08 17:45:18,790 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~waterLevel~0)| 1)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0)))) [2024-11-08 17:45:18,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:45:18 BoogieIcfgContainer [2024-11-08 17:45:18,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:45:18,804 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:45:18,804 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:45:18,804 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:45:18,805 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:45:13" (3/4) ... [2024-11-08 17:45:18,808 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:45:18,816 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 17:45:18,816 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 17:45:18,817 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 17:45:18,817 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 17:45:18,827 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-08 17:45:18,827 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 17:45:18,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 17:45:18,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:45:18,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:45:18,960 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:45:18,960 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:45:18,961 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:45:18,961 INFO L158 Benchmark]: Toolchain (without parser) took 6387.46ms. Allocated memory was 125.8MB in the beginning and 197.1MB in the end (delta: 71.3MB). Free memory was 82.2MB in the beginning and 114.1MB in the end (delta: -31.9MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,962 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:45:18,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.48ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 82.2MB in the beginning and 131.5MB in the end (delta: -49.3MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.10ms. Allocated memory is still 163.6MB. Free memory was 131.4MB in the beginning and 134.0MB in the end (delta: -2.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,963 INFO L158 Benchmark]: Boogie Preprocessor took 42.97ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,964 INFO L158 Benchmark]: RCFGBuilder took 438.86ms. Allocated memory is still 163.6MB. Free memory was 131.9MB in the beginning and 116.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,964 INFO L158 Benchmark]: TraceAbstraction took 4895.76ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.1MB in the beginning and 120.4MB in the end (delta: -5.3MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,964 INFO L158 Benchmark]: Witness Printer took 157.27ms. Allocated memory is still 197.1MB. Free memory was 120.4MB in the beginning and 114.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:45:18,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.48ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 82.2MB in the beginning and 131.5MB in the end (delta: -49.3MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.10ms. Allocated memory is still 163.6MB. Free memory was 131.4MB in the beginning and 134.0MB in the end (delta: -2.6MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.97ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.86ms. Allocated memory is still 163.6MB. Free memory was 131.9MB in the beginning and 116.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4895.76ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 115.1MB in the beginning and 120.4MB in the end (delta: -5.3MB). Peak memory consumption was 71.6MB. Max. memory is 16.1GB. * Witness Printer took 157.27ms. Allocated memory is still 197.1MB. Free memory was 120.4MB in the beginning and 114.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 208]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [208] - GenericResultAtLocation [Line: 278]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [278] - GenericResultAtLocation [Line: 305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [305] - GenericResultAtLocation [Line: 385]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [385] - GenericResultAtLocation [Line: 484]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [484] - GenericResultAtLocation [Line: 850]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [850] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 390 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 1118 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 740 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 281 IncrementalHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 378 mSDtfsCounter, 281 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=6, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 94 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 778 SizeOfPredicates, 0 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 34/57 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: 222]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (splverifierCounter == 0))) - InvariantResult [Line: 221]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 332]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: ((((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 387]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 72]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: (((((pumpRunning == 0) && (2 <= \old(waterLevel))) || ((pumpRunning == 0) && (\old(waterLevel) == 1))) && (\old(waterLevel) == waterLevel)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 320]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((pumpRunning == 0) && (waterLevel == 1)) || ((pumpRunning == 0) && (2 <= waterLevel))) Ensures: ((((((pumpRunning == 0) && (2 <= \old(waterLevel))) || ((pumpRunning == 0) && (\old(waterLevel) == 1))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && (2 <= waterLevel)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 17:45:19,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a651f56-a0e6-479b-9f47-c0baa066cb12/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE