./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:48:18,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:48:18,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 11:48:18,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:48:18,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:48:18,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:48:18,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:48:18,740 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:48:18,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:48:18,742 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:48:18,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:48:18,743 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:48:18,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:48:18,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:48:18,745 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:48:18,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:48:18,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:48:18,747 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:48:18,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:48:18,749 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:48:18,749 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:48:18,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:48:18,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:48:18,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:48:18,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:48:18,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:48:18,752 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:48:18,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:48:18,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:48:18,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:48:18,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:48:18,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:18,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:48:18,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:48:18,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:48:18,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:48:18,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:48:18,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:48:18,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:48:18,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:48:18,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:48:18,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:48:18,758 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_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2023-11-26 11:48:19,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:48:19,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:48:19,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:48:19,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:48:19,114 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:48:19,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2023-11-26 11:48:22,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:48:22,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:48:22,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2023-11-26 11:48:22,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/data/2de26fc36/4a008b7ff54549049bb3dbc11da2f3af/FLAG0112ed288 [2023-11-26 11:48:22,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/data/2de26fc36/4a008b7ff54549049bb3dbc11da2f3af [2023-11-26 11:48:22,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:48:22,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:48:22,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:22,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:48:22,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:48:22,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:22" (1/1) ... [2023-11-26 11:48:22,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b74572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:22, skipping insertion in model container [2023-11-26 11:48:22,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:48:22" (1/1) ... [2023-11-26 11:48:22,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:48:22,825 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2023-11-26 11:48:22,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:23,008 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:48:23,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-26 11:48:23,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2023-11-26 11:48:23,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2023-11-26 11:48:23,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [462] [2023-11-26 11:48:23,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [587] [2023-11-26 11:48:23,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [622] [2023-11-26 11:48:23,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] [2023-11-26 11:48:23,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [788] [2023-11-26 11:48:23,042 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2023-11-26 11:48:23,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:48:23,137 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:48:23,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23 WrapperNode [2023-11-26 11:48:23,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:48:23,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:23,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:48:23,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:48:23,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,189 INFO L138 Inliner]: procedures = 50, calls = 90, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 142 [2023-11-26 11:48:23,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:48:23,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:48:23,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:48:23,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:48:23,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,221 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:48:23,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:48:23,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:48:23,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:48:23,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:48:23,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (1/1) ... [2023-11-26 11:48:23,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:48:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:48:23,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:48:23,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:48:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:48:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 11:48:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 11:48:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 11:48:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 11:48:23,314 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 11:48:23,314 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 11:48:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 11:48:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 11:48:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:48:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 11:48:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 11:48:23,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:48:23,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:48:23,397 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:48:23,400 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:48:23,653 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:48:23,733 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:48:23,734 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:48:23,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:23 BoogieIcfgContainer [2023-11-26 11:48:23,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:48:23,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:48:23,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:48:23,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:48:23,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:48:22" (1/3) ... [2023-11-26 11:48:23,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e98cbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:23, skipping insertion in model container [2023-11-26 11:48:23,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:48:23" (2/3) ... [2023-11-26 11:48:23,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e98cbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:48:23, skipping insertion in model container [2023-11-26 11:48:23,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:23" (3/3) ... [2023-11-26 11:48:23,749 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2023-11-26 11:48:23,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:48:23,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:48:23,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:48:23,832 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77fa1608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:48:23,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:48:23,838 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 34 states have (on average 1.588235294117647) internal successors, (54), 38 states have internal predecessors, (54), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-26 11:48:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 11:48:23,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:23,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:23,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:23,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1024153947, now seen corresponding path program 1 times [2023-11-26 11:48:23,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:23,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975058106] [2023-11-26 11:48:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:23,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 11:48:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:24,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:24,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975058106] [2023-11-26 11:48:24,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975058106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:24,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:24,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:48:24,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585628971] [2023-11-26 11:48:24,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:24,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:48:24,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:48:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:48:24,118 INFO L87 Difference]: Start difference. First operand has 48 states, 34 states have (on average 1.588235294117647) internal successors, (54), 38 states have internal predecessors, (54), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:24,204 INFO L93 Difference]: Finished difference Result 94 states and 137 transitions. [2023-11-26 11:48:24,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:48:24,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-26 11:48:24,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:24,217 INFO L225 Difference]: With dead ends: 94 [2023-11-26 11:48:24,217 INFO L226 Difference]: Without dead ends: 43 [2023-11-26 11:48:24,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:48:24,230 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:24,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-26 11:48:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-26 11:48:24,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 34 states have internal predecessors, (44), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:48:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2023-11-26 11:48:24,289 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 17 [2023-11-26 11:48:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:24,290 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2023-11-26 11:48:24,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2023-11-26 11:48:24,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 11:48:24,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:24,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:24,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:48:24,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:24,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:24,298 INFO L85 PathProgramCache]: Analyzing trace with hash -352610414, now seen corresponding path program 1 times [2023-11-26 11:48:24,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:24,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734053466] [2023-11-26 11:48:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:24,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 11:48:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:24,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734053466] [2023-11-26 11:48:24,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734053466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:24,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:24,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:48:24,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474751108] [2023-11-26 11:48:24,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:24,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:48:24,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:24,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:48:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:24,454 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:24,486 INFO L93 Difference]: Finished difference Result 59 states and 77 transitions. [2023-11-26 11:48:24,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:48:24,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-26 11:48:24,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:24,488 INFO L225 Difference]: With dead ends: 59 [2023-11-26 11:48:24,488 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 11:48:24,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:48:24,491 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:24,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 61 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 11:48:24,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-26 11:48:24,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 29 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:48:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2023-11-26 11:48:24,499 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 18 [2023-11-26 11:48:24,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:24,500 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2023-11-26 11:48:24,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-11-26 11:48:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:48:24,501 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:24,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:24,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:48:24,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:24,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash 788179009, now seen corresponding path program 1 times [2023-11-26 11:48:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:24,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715837752] [2023-11-26 11:48:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:24,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:48:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:24,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715837752] [2023-11-26 11:48:24,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715837752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:24,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:24,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:24,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905774039] [2023-11-26 11:48:24,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:24,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:48:24,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:24,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:48:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:48:24,665 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:24,731 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2023-11-26 11:48:24,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:48:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 11:48:24,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:24,733 INFO L225 Difference]: With dead ends: 68 [2023-11-26 11:48:24,734 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 11:48:24,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:24,736 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:24,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 56 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:48:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 11:48:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-26 11:48:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 29 states have internal predecessors, (37), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 11:48:24,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2023-11-26 11:48:24,747 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 21 [2023-11-26 11:48:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:24,748 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2023-11-26 11:48:24,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:24,749 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2023-11-26 11:48:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:48:24,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:24,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:24,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:48:24,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:24,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 225173115, now seen corresponding path program 1 times [2023-11-26 11:48:24,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:24,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033999407] [2023-11-26 11:48:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:24,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 11:48:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:48:24,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:24,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033999407] [2023-11-26 11:48:24,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033999407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:24,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:24,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:24,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766647359] [2023-11-26 11:48:24,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:24,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:48:24,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:24,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:48:24,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:48:24,948 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:25,067 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2023-11-26 11:48:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:48:25,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-26 11:48:25,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:25,075 INFO L225 Difference]: With dead ends: 96 [2023-11-26 11:48:25,075 INFO L226 Difference]: Without dead ends: 63 [2023-11-26 11:48:25,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:25,081 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:25,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 97 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:48:25,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-26 11:48:25,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2023-11-26 11:48:25,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 46 states have (on average 1.391304347826087) internal successors, (64), 50 states have internal predecessors, (64), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-26 11:48:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 81 transitions. [2023-11-26 11:48:25,099 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 81 transitions. Word has length 21 [2023-11-26 11:48:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:25,100 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 81 transitions. [2023-11-26 11:48:25,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:48:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2023-11-26 11:48:25,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-26 11:48:25,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:25,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:25,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:48:25,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:25,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:25,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1824350123, now seen corresponding path program 1 times [2023-11-26 11:48:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:25,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140716394] [2023-11-26 11:48:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:25,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:48:25,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:48:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:48:25,169 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:48:25,170 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:48:25,171 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 11:48:25,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:48:25,177 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 11:48:25,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:48:25,206 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret37 could not be translated [2023-11-26 11:48:25,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:48:25 BoogieIcfgContainer [2023-11-26 11:48:25,220 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:48:25,221 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:48:25,221 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:48:25,221 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:48:25,222 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:48:23" (3/4) ... [2023-11-26 11:48:25,223 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 11:48:25,233 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret37 could not be translated [2023-11-26 11:48:25,282 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:48:25,282 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:48:25,283 INFO L158 Benchmark]: Toolchain (without parser) took 2725.35ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 105.2MB in the beginning and 112.0MB in the end (delta: -6.8MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,283 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 108.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:48:25,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.01ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 86.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 84.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,285 INFO L158 Benchmark]: Boogie Preprocessor took 52.58ms. Allocated memory is still 138.4MB. Free memory was 84.4MB in the beginning and 82.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,285 INFO L158 Benchmark]: RCFGBuilder took 490.74ms. Allocated memory is still 138.4MB. Free memory was 82.2MB in the beginning and 63.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,285 INFO L158 Benchmark]: TraceAbstraction took 1482.57ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 62.6MB in the beginning and 115.1MB in the end (delta: -52.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,286 INFO L158 Benchmark]: Witness Printer took 61.61ms. Allocated memory is still 199.2MB. Free memory was 115.1MB in the beginning and 112.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:48:25,288 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 108.8MB in the beginning and 108.7MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.01ms. Allocated memory is still 138.4MB. Free memory was 105.2MB in the beginning and 86.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 138.4MB. Free memory was 86.4MB in the beginning and 84.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.58ms. Allocated memory is still 138.4MB. Free memory was 84.4MB in the beginning and 82.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.74ms. Allocated memory is still 138.4MB. Free memory was 82.2MB in the beginning and 63.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1482.57ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 62.6MB in the beginning and 115.1MB in the end (delta: -52.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 61.61ms. Allocated memory is still 199.2MB. Free memory was 115.1MB in the beginning and 112.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [462] - GenericResultAtLocation [Line: 587]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [587] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [622] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [692] - GenericResultAtLocation [Line: 788]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [788] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret37 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret37 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L472] int pumpRunning = 0; [L473] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L789] int waterLevel = 1; [L790] int methaneLevelCritical = 0; [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L627] int splverifierCounter ; [L628] int tmp ; [L629] int tmp___0 ; [L630] int tmp___1 ; [L631] int tmp___2 ; [L634] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L636] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L638] COND TRUE splverifierCounter < 4 [L644] tmp = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L648] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] COND TRUE waterLevel < 2 [L808] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L654] tmp___0 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L664] tmp___2 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___2) [L668] CALL startSystem() [L583] systemActive = 1 [L668] RET startSystem() [L681] CALL timeShift() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(pumpRunning)) VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L487] COND TRUE \read(systemActive) [L489] FCALL processEnvironment() [L495] CALL __utac_acc__Specification3_spec__1() [L590] int tmp ; [L591] int tmp___0 ; [L592] int tmp___1 ; VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] int retValue_acc ; [L831] retValue_acc = methaneLevelCritical [L832] return (retValue_acc); [L596] RET, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isMethaneLevelCritical() [L598] COND FALSE !(\read(tmp)) [L602] CALL, EXPR getWaterLevel() [L860] int retValue_acc ; [L863] retValue_acc = waterLevel [L864] return (retValue_acc); [L602] RET, EXPR getWaterLevel() [L602] tmp___0 = getWaterLevel() [L604] COND TRUE tmp___0 == 2 [L606] CALL, EXPR isPumpRunning() [L535] int retValue_acc ; [L538] retValue_acc = pumpRunning [L539] return (retValue_acc); [L606] RET, EXPR isPumpRunning() [L606] tmp___1 = isPumpRunning() [L608] COND FALSE !(\read(tmp___1)) [L612] CALL __automaton_fail() [L92] reach_error() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 265 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 154 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 11:48:25,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_623362b8-a440-4baf-b7df-34969dcd8002/bin/uautomizer-verify-VRDe98Ueme/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE