./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:18:16,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:18:16,082 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:18:16,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:18:16,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:18:16,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:18:16,112 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:18:16,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:18:16,113 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:18:16,115 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:18:16,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:18:16,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:18:16,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:18:16,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:18:16,117 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:18:16,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:18:16,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:18:16,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:18:16,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:18:16,119 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:18:16,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:18:16,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:18:16,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:18:16,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:18:16,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:18:16,120 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:18:16,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:18:16,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:18:16,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:18:16,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:18:16,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:18:16,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:18:16,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:16,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:18:16,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:18:16,127 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5780768f89256c506186805750dd5ec09f07e7c3b9baffd6ca5edbcb4a88d3de [2024-11-18 14:18:16,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:18:16,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:18:16,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:18:16,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:18:16,320 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:18:16,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2024-11-18 14:18:17,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:18:17,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:18:17,702 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c [2024-11-18 14:18:17,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd45aded/68de57ae7eeb42398e08f689c98c3076/FLAG2a23221e4 [2024-11-18 14:18:17,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd45aded/68de57ae7eeb42398e08f689c98c3076 [2024-11-18 14:18:17,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:18:17,738 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:18:17,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:17,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:18:17,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:18:17,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:17" (1/1) ... [2024-11-18 14:18:17,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c104f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:17, skipping insertion in model container [2024-11-18 14:18:17,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:18:17" (1/1) ... [2024-11-18 14:18:17,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:18:17,977 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2024-11-18 14:18:18,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:18,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:18:18,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2024-11-18 14:18:18,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2024-11-18 14:18:18,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2024-11-18 14:18:18,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2024-11-18 14:18:18,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] [2024-11-18 14:18:18,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] [2024-11-18 14:18:18,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] [2024-11-18 14:18:18,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] [2024-11-18 14:18:18,065 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product46.cil.c[7019,7032] [2024-11-18 14:18:18,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:18:18,103 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:18:18,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18 WrapperNode [2024-11-18 14:18:18,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:18:18,104 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:18,104 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:18:18,104 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:18:18,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,121 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,141 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 188 [2024-11-18 14:18:18,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:18:18,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:18:18,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:18:18,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:18:18,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,164 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]. [2024-11-18 14:18:18,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,175 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:18:18,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:18:18,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:18:18,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:18:18,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (1/1) ... [2024-11-18 14:18:18,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:18:18,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:18,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:18:18,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:18:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:18:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:18:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:18:18,238 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-18 14:18:18,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-18 14:18:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:18:18,239 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:18:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:18:18,239 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:18:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:18:18,239 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:18:18,239 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-18 14:18:18,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-18 14:18:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:18:18,240 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:18:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:18:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:18:18,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:18:18,303 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:18:18,306 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:18:18,490 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-11-18 14:18:18,491 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:18:18,503 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:18:18,503 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:18:18,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:18 BoogieIcfgContainer [2024-11-18 14:18:18,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:18:18,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:18:18,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:18:18,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:18:18,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:18:17" (1/3) ... [2024-11-18 14:18:18,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100f4c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:18, skipping insertion in model container [2024-11-18 14:18:18,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:18:18" (2/3) ... [2024-11-18 14:18:18,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100f4c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:18:18, skipping insertion in model container [2024-11-18 14:18:18,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:18" (3/3) ... [2024-11-18 14:18:18,510 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product46.cil.c [2024-11-18 14:18:18,524 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:18:18,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:18:18,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:18:18,569 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;@24112f10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:18:18,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:18:18,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-18 14:18:18,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 14:18:18,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:18,579 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] [2024-11-18 14:18:18,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:18,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash 460925055, now seen corresponding path program 1 times [2024-11-18 14:18:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:18,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591462176] [2024-11-18 14:18:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:18,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:18,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591462176] [2024-11-18 14:18:18,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591462176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:18,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:18,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:18:18,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676604544] [2024-11-18 14:18:18,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:18,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:18:18,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:18:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:18:18,796 INFO L87 Difference]: Start difference. First operand has 94 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 78 states have internal predecessors, (96), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-18 14:18:18,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:18,821 INFO L93 Difference]: Finished difference Result 180 states and 243 transitions. [2024-11-18 14:18:18,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:18:18,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2024-11-18 14:18:18,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:18,833 INFO L225 Difference]: With dead ends: 180 [2024-11-18 14:18:18,833 INFO L226 Difference]: Without dead ends: 85 [2024-11-18 14:18:18,835 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 [2024-11-18 14:18:18,838 INFO L432 NwaCegarLoop]: 118 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, 118 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 [2024-11-18 14:18:18,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:18,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-18 14:18:18,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-18 14:18:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 70 states have internal predecessors, (82), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-18 14:18:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-18 14:18:18,868 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 23 [2024-11-18 14:18:18,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:18,868 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-18 14:18:18,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2024-11-18 14:18:18,868 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-18 14:18:18,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-18 14:18:18,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:18,870 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] [2024-11-18 14:18:18,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:18:18,870 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:18,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:18,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1826997256, now seen corresponding path program 1 times [2024-11-18 14:18:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:18,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256103878] [2024-11-18 14:18:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:18,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:18,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:18,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:18,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256103878] [2024-11-18 14:18:18,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256103878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:18,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:18,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:18,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895719529] [2024-11-18 14:18:18,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:18,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:18,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:18,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:18,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:18,975 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-18 14:18:18,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:18,993 INFO L93 Difference]: Finished difference Result 135 states and 173 transitions. [2024-11-18 14:18:18,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:18,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2024-11-18 14:18:18,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:18,995 INFO L225 Difference]: With dead ends: 135 [2024-11-18 14:18:18,995 INFO L226 Difference]: Without dead ends: 76 [2024-11-18 14:18:18,995 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 [2024-11-18 14:18:18,996 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 175 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 [2024-11-18 14:18:18,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 175 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:18,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-18 14:18:19,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-18 14:18:19,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:18:19,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2024-11-18 14:18:19,003 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 24 [2024-11-18 14:18:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:19,003 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2024-11-18 14:18:19,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-18 14:18:19,004 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2024-11-18 14:18:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 14:18:19,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:19,004 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] [2024-11-18 14:18:19,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:18:19,005 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:19,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:19,005 INFO L85 PathProgramCache]: Analyzing trace with hash 844834205, now seen corresponding path program 1 times [2024-11-18 14:18:19,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:19,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298237380] [2024-11-18 14:18:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:19,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:19,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:19,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298237380] [2024-11-18 14:18:19,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298237380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:19,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:19,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:18:19,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974231133] [2024-11-18 14:18:19,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:19,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:18:19,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:18:19,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:18:19,093 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2024-11-18 14:18:19,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:19,113 INFO L93 Difference]: Finished difference Result 145 states and 188 transitions. [2024-11-18 14:18:19,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:18:19,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 [2024-11-18 14:18:19,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:19,115 INFO L225 Difference]: With dead ends: 145 [2024-11-18 14:18:19,115 INFO L226 Difference]: Without dead ends: 76 [2024-11-18 14:18:19,115 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 [2024-11-18 14:18:19,116 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 91 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:19,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 95 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:19,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-18 14:18:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-18 14:18:19,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 64 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-18 14:18:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2024-11-18 14:18:19,126 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 29 [2024-11-18 14:18:19,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:19,127 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2024-11-18 14:18:19,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2024-11-18 14:18:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2024-11-18 14:18:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-18 14:18:19,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:19,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:19,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:18:19,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:19,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:19,129 INFO L85 PathProgramCache]: Analyzing trace with hash -589702700, now seen corresponding path program 1 times [2024-11-18 14:18:19,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:19,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121529504] [2024-11-18 14:18:19,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:19,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:19,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:19,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:19,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121529504] [2024-11-18 14:18:19,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121529504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:19,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:19,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:19,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049551224] [2024-11-18 14:18:19,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:19,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:19,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:19,251 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:19,455 INFO L93 Difference]: Finished difference Result 223 states and 280 transitions. [2024-11-18 14:18:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-18 14:18:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:19,461 INFO L225 Difference]: With dead ends: 223 [2024-11-18 14:18:19,461 INFO L226 Difference]: Without dead ends: 154 [2024-11-18 14:18:19,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:19,462 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 169 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:19,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 259 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:18:19,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-18 14:18:19,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 148. [2024-11-18 14:18:19,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 119 states have internal predecessors, (138), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-18 14:18:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 179 transitions. [2024-11-18 14:18:19,493 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 179 transitions. Word has length 39 [2024-11-18 14:18:19,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:19,493 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 179 transitions. [2024-11-18 14:18:19,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2024-11-18 14:18:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:18:19,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:19,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:19,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:18:19,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:19,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:19,495 INFO L85 PathProgramCache]: Analyzing trace with hash -504032566, now seen corresponding path program 1 times [2024-11-18 14:18:19,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:19,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058585526] [2024-11-18 14:18:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:19,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:19,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:19,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058585526] [2024-11-18 14:18:19,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058585526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:19,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:19,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:18:19,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455564643] [2024-11-18 14:18:19,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:19,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:18:19,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:19,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:18:19,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:19,579 INFO L87 Difference]: Start difference. First operand 148 states and 179 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:19,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:19,669 INFO L93 Difference]: Finished difference Result 524 states and 669 transitions. [2024-11-18 14:18:19,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:18:19,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-18 14:18:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:19,675 INFO L225 Difference]: With dead ends: 524 [2024-11-18 14:18:19,676 INFO L226 Difference]: Without dead ends: 383 [2024-11-18 14:18:19,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:18:19,678 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 139 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:19,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 298 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:19,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-18 14:18:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 374. [2024-11-18 14:18:19,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 281 states have (on average 1.2455516014234875) internal successors, (350), 299 states have internal predecessors, (350), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-11-18 14:18:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 469 transitions. [2024-11-18 14:18:19,730 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 469 transitions. Word has length 45 [2024-11-18 14:18:19,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:19,731 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 469 transitions. [2024-11-18 14:18:19,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-18 14:18:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 469 transitions. [2024-11-18 14:18:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-18 14:18:19,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:19,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:19,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:18:19,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:19,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash -722887284, now seen corresponding path program 1 times [2024-11-18 14:18:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:19,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851220319] [2024-11-18 14:18:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:19,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:19,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851220319] [2024-11-18 14:18:19,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851220319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:19,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:19,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:18:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802918713] [2024-11-18 14:18:19,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:19,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:19,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:19,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:19,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:19,857 INFO L87 Difference]: Start difference. First operand 374 states and 469 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:20,038 INFO L93 Difference]: Finished difference Result 378 states and 471 transitions. [2024-11-18 14:18:20,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 14:18:20,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-18 14:18:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:20,042 INFO L225 Difference]: With dead ends: 378 [2024-11-18 14:18:20,042 INFO L226 Difference]: Without dead ends: 376 [2024-11-18 14:18:20,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:18:20,047 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 112 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:20,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 303 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-18 14:18:20,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 374. [2024-11-18 14:18:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 281 states have (on average 1.2277580071174377) internal successors, (345), 299 states have internal predecessors, (345), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-11-18 14:18:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2024-11-18 14:18:20,080 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 45 [2024-11-18 14:18:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:20,080 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2024-11-18 14:18:20,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-18 14:18:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2024-11-18 14:18:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:18:20,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:20,082 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:20,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:18:20,083 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:20,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1539826399, now seen corresponding path program 1 times [2024-11-18 14:18:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:20,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342658733] [2024-11-18 14:18:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:20,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:20,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342658733] [2024-11-18 14:18:20,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342658733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:20,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:20,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76558417] [2024-11-18 14:18:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:20,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:20,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:20,169 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:20,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:20,210 INFO L93 Difference]: Finished difference Result 750 states and 957 transitions. [2024-11-18 14:18:20,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:20,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-18 14:18:20,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:20,215 INFO L225 Difference]: With dead ends: 750 [2024-11-18 14:18:20,215 INFO L226 Difference]: Without dead ends: 383 [2024-11-18 14:18:20,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:20,217 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:20,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 366 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-18 14:18:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-11-18 14:18:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 290 states have (on average 1.2206896551724138) internal successors, (354), 308 states have internal predecessors, (354), 46 states have call successors, (46), 39 states have call predecessors, (46), 46 states have return successors, (73), 49 states have call predecessors, (73), 46 states have call successors, (73) [2024-11-18 14:18:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 473 transitions. [2024-11-18 14:18:20,260 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 473 transitions. Word has length 55 [2024-11-18 14:18:20,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:20,260 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 473 transitions. [2024-11-18 14:18:20,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 473 transitions. [2024-11-18 14:18:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 14:18:20,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:20,262 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:20,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:18:20,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:20,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1562458653, now seen corresponding path program 1 times [2024-11-18 14:18:20,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:20,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383707746] [2024-11-18 14:18:20,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:18:20,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:20,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383707746] [2024-11-18 14:18:20,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383707746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:20,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:20,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:18:20,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343496836] [2024-11-18 14:18:20,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:20,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:20,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:20,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:20,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:18:20,329 INFO L87 Difference]: Start difference. First operand 383 states and 473 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:20,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:20,367 INFO L93 Difference]: Finished difference Result 684 states and 859 transitions. [2024-11-18 14:18:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:18:20,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-11-18 14:18:20,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:20,369 INFO L225 Difference]: With dead ends: 684 [2024-11-18 14:18:20,369 INFO L226 Difference]: Without dead ends: 308 [2024-11-18 14:18:20,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:18:20,371 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 93 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:20,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 273 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:18:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-18 14:18:20,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2024-11-18 14:18:20,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 233 states have (on average 1.206008583690987) internal successors, (281), 247 states have internal predecessors, (281), 37 states have call successors, (37), 32 states have call predecessors, (37), 37 states have return successors, (56), 39 states have call predecessors, (56), 37 states have call successors, (56) [2024-11-18 14:18:20,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 374 transitions. [2024-11-18 14:18:20,392 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 374 transitions. Word has length 55 [2024-11-18 14:18:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:20,392 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 374 transitions. [2024-11-18 14:18:20,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-18 14:18:20,393 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 374 transitions. [2024-11-18 14:18:20,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 14:18:20,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:20,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:20,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:18:20,394 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:20,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1860054005, now seen corresponding path program 1 times [2024-11-18 14:18:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:20,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012827523] [2024-11-18 14:18:20,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:20,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:18:20,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:20,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012827523] [2024-11-18 14:18:20,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012827523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:20,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:18:20,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:18:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106701166] [2024-11-18 14:18:20,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:20,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:18:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:20,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:18:20,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:20,472 INFO L87 Difference]: Start difference. First operand 308 states and 374 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:18:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:20,584 INFO L93 Difference]: Finished difference Result 892 states and 1117 transitions. [2024-11-18 14:18:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:18:20,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-18 14:18:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:20,587 INFO L225 Difference]: With dead ends: 892 [2024-11-18 14:18:20,587 INFO L226 Difference]: Without dead ends: 591 [2024-11-18 14:18:20,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:18:20,588 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 64 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:20,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 426 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:20,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-18 14:18:20,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2024-11-18 14:18:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 442 states have (on average 1.1809954751131222) internal successors, (522), 469 states have internal predecessors, (522), 74 states have call successors, (74), 64 states have call predecessors, (74), 74 states have return successors, (117), 78 states have call predecessors, (117), 74 states have call successors, (117) [2024-11-18 14:18:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 713 transitions. [2024-11-18 14:18:20,624 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 713 transitions. Word has length 59 [2024-11-18 14:18:20,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:20,624 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 713 transitions. [2024-11-18 14:18:20,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:18:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 713 transitions. [2024-11-18 14:18:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 14:18:20,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:20,625 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:20,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:18:20,625 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:20,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2111451217, now seen corresponding path program 1 times [2024-11-18 14:18:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:20,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021483674] [2024-11-18 14:18:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:20,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:20,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:18:20,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:20,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021483674] [2024-11-18 14:18:20,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021483674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:20,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279715066] [2024-11-18 14:18:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:20,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:20,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:20,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:20,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:18:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:20,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:18:20,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:18:20,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279715066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-18 14:18:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449936809] [2024-11-18 14:18:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:20,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:18:20,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:18:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:18:20,998 INFO L87 Difference]: Start difference. First operand 591 states and 713 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 14:18:21,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:21,129 INFO L93 Difference]: Finished difference Result 1158 states and 1402 transitions. [2024-11-18 14:18:21,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:18:21,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2024-11-18 14:18:21,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:21,132 INFO L225 Difference]: With dead ends: 1158 [2024-11-18 14:18:21,133 INFO L226 Difference]: Without dead ends: 574 [2024-11-18 14:18:21,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:18:21,134 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 55 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:21,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 629 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:21,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-18 14:18:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2024-11-18 14:18:21,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 429 states have (on average 1.167832167832168) internal successors, (501), 455 states have internal predecessors, (501), 73 states have call successors, (73), 63 states have call predecessors, (73), 71 states have return successors, (105), 76 states have call predecessors, (105), 73 states have call successors, (105) [2024-11-18 14:18:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 679 transitions. [2024-11-18 14:18:21,180 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 679 transitions. Word has length 63 [2024-11-18 14:18:21,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:21,180 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 679 transitions. [2024-11-18 14:18:21,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-18 14:18:21,180 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 679 transitions. [2024-11-18 14:18:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 14:18:21,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:21,183 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:21,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:18:21,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 14:18:21,387 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:21,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:21,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1927537688, now seen corresponding path program 1 times [2024-11-18 14:18:21,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:21,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772292662] [2024-11-18 14:18:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:21,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:21,474 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 14:18:21,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772292662] [2024-11-18 14:18:21,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772292662] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916357595] [2024-11-18 14:18:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:21,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:21,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:21,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:21,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:18:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:21,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 14:18:21,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:18:21,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916357595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:21,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-11-18 14:18:21,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248032396] [2024-11-18 14:18:21,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:21,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:18:21,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:21,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:18:21,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:18:21,626 INFO L87 Difference]: Start difference. First operand 574 states and 679 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:18:21,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:21,806 INFO L93 Difference]: Finished difference Result 1175 states and 1427 transitions. [2024-11-18 14:18:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:18:21,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-18 14:18:21,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:21,810 INFO L225 Difference]: With dead ends: 1175 [2024-11-18 14:18:21,810 INFO L226 Difference]: Without dead ends: 700 [2024-11-18 14:18:21,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:18:21,812 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 133 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:21,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 276 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-18 14:18:21,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 698. [2024-11-18 14:18:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 522 states have (on average 1.1724137931034482) internal successors, (612), 552 states have internal predecessors, (612), 90 states have call successors, (90), 80 states have call predecessors, (90), 85 states have return successors, (135), 91 states have call predecessors, (135), 90 states have call successors, (135) [2024-11-18 14:18:21,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 837 transitions. [2024-11-18 14:18:21,858 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 837 transitions. Word has length 112 [2024-11-18 14:18:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:21,858 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 837 transitions. [2024-11-18 14:18:21,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-18 14:18:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 837 transitions. [2024-11-18 14:18:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 14:18:21,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:18:21,860 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:21,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 14:18:22,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-18 14:18:22,062 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:18:22,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:18:22,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1925782386, now seen corresponding path program 1 times [2024-11-18 14:18:22,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:18:22,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821703825] [2024-11-18 14:18:22,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:18:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 14:18:22,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:18:22,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821703825] [2024-11-18 14:18:22,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821703825] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:18:22,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608631087] [2024-11-18 14:18:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:18:22,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:22,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:18:22,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:18:22,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:18:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:18:22,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 14:18:22,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:18:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 14:18:22,374 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:18:22,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608631087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:18:22,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:18:22,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-18 14:18:22,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373745532] [2024-11-18 14:18:22,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:18:22,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:18:22,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:18:22,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:18:22,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:18:22,376 INFO L87 Difference]: Start difference. First operand 698 states and 837 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:18:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:18:22,489 INFO L93 Difference]: Finished difference Result 1223 states and 1483 transitions. [2024-11-18 14:18:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:18:22,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2024-11-18 14:18:22,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:18:22,491 INFO L225 Difference]: With dead ends: 1223 [2024-11-18 14:18:22,491 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:18:22,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-18 14:18:22,494 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 55 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:18:22,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 894 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:18:22,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:18:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:18:22,494 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) [2024-11-18 14:18:22,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:18:22,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2024-11-18 14:18:22,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:18:22,495 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:18:22,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 14:18:22,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:18:22,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:18:22,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:18:22,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:18:22,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:18:22,700 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:18:22,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:18:25,217 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:18:25,241 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-11-18 14:18:25,246 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:25,255 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse2 (= |old(~waterLevel~0)| 1)) (.cse1 (= ~waterLevel~0 1))) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (or (not .cse1) .cse2) (<= |old(~waterLevel~0)| ~waterLevel~0) (or (not (= |old(~pumpRunning~0)| 0)) (not .cse2) .cse1))) Eliminated clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (exists ((|old(~waterLevel~0)| Int)) (let ((.cse2 (= ~waterLevel~0 1)) (.cse1 (= |old(~waterLevel~0)| 1))) (and (or (not (= ~pumpRunning~0 0)) (not .cse1) .cse2) (or (not .cse2) .cse1) (<= |old(~waterLevel~0)| ~waterLevel~0))))) [2024-11-18 14:18:25,262 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:25,266 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (let ((.cse1 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse0))) (or (not .cse1) (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) Eliminated clause: (let ((.cse1 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and .cse1 (<= 1 ~methaneLevelCritical~0) .cse0))) (exists ((|old(~waterLevel~0)| Int)) (and (or (not .cse1) (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))))) [2024-11-18 14:18:25,270 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:18:25,271 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-18 14:18:25,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:18:25 BoogieIcfgContainer [2024-11-18 14:18:25,284 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:18:25,284 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:18:25,284 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:18:25,284 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:18:25,285 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:18:18" (3/4) ... [2024-11-18 14:18:25,287 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:18:25,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-18 14:18:25,294 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-18 14:18:25,295 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:18:25,295 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:18:25,295 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:25,295 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:18:25,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:18:25,390 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:18:25,391 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:18:25,391 INFO L158 Benchmark]: Toolchain (without parser) took 7652.85ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 139.4MB in the beginning and 192.4MB in the end (delta: -53.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,391 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:18:25,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.56ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 117.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.99ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,392 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,392 INFO L158 Benchmark]: RCFGBuilder took 327.86ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 94.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,392 INFO L158 Benchmark]: TraceAbstraction took 6778.23ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 94.0MB in the beginning and 199.7MB in the end (delta: -105.7MB). Peak memory consumption was 117.2MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,392 INFO L158 Benchmark]: Witness Printer took 106.51ms. Allocated memory is still 257.9MB. Free memory was 199.7MB in the beginning and 192.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:18:25,393 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.56ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 117.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.99ms. Allocated memory is still 167.8MB. Free memory was 117.0MB in the beginning and 114.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 112.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.86ms. Allocated memory is still 167.8MB. Free memory was 112.8MB in the beginning and 94.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6778.23ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 94.0MB in the beginning and 199.7MB in the end (delta: -105.7MB). Peak memory consumption was 117.2MB. Max. memory is 16.1GB. * Witness Printer took 106.51ms. Allocated memory is still 257.9MB. Free memory was 199.7MB in the beginning and 192.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] - GenericResultAtLocation [Line: 467]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [467] - GenericResultAtLocation [Line: 476]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [476] - GenericResultAtLocation [Line: 502]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [502] - GenericResultAtLocation [Line: 597]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [597] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 472]: 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 9 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 947 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 924 mSDsluCounter, 4112 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2752 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 861 IncrementalHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 1360 mSDtfsCounter, 861 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 375 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=698occurred in iteration=11, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 940 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 925 ConstructedInterpolants, 0 QuantifiedInterpolants, 1626 SizeOfPredicates, 1 NumberOfNonLiveVariables, 912 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 194/203 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: 65]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 64]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 158]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 530]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (head == \old(head)))) - ProcedureContractResult [Line: 542]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((methaneLevelCritical <= \result) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((methaneLevelCritical != 0) || (\result == 0))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 335]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 134]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((waterLevel != 1) || (\old(pumpRunning) != 0)) || (\old(waterLevel) == 1))) && ((((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0)) || ((\old(pumpRunning) != 0) && (pumpRunning == 0))) || (\old(waterLevel) < ((long long) waterLevel + 1)))) && (((pumpRunning == 0) || (1 < waterLevel)) || ((pumpRunning == \old(pumpRunning)) && (\old(pumpRunning) != 0)))) && (((\old(pumpRunning) != 0) || (\old(waterLevel) != 1)) || (waterLevel == 1))) && ((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 518]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && (((waterLevel != 1) || (pumpRunning != 0)) || (\old(waterLevel) != 1))) && (\old(waterLevel) <= waterLevel)) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 166]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((((pumpRunning == 0) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) == 0))) && (((((systemActive == \old(systemActive)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) - ProcedureContractResult [Line: 250]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) Ensures: ((((((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) || (((pumpRunning != 0) && (methaneLevelCritical == 0)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (2 <= waterLevel)) && (1 == systemActive))) || (((1 <= methaneLevelCritical) && (pumpRunning != 0)) && (1 == systemActive))) && ((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:18:25,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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