/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:39:20,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:39:20,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:39:20,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:39:20,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:39:20,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:39:20,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:39:20,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:39:20,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:39:20,935 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:39:20,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:39:20,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:39:20,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:39:20,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:39:20,937 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:39:20,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:39:20,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:39:20,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:39:20,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:39:20,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:39:20,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:39:20,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:39:20,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:39:20,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:39:20,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:39:20,940 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:39:20,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:39:20,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:39:20,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:39:20,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:39:20,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:39:20,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:39:20,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:20,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:39:20,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:39:20,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:39:20,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:39:20,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:39:20,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:39:20,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:39:20,943 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:39:20,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:39:20,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:39:20,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:39:21,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:39:21,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:39:21,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:39:21,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:39:21,212 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:39:21,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2023-12-19 23:39:22,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:39:22,609 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:39:22,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c [2023-12-19 23:39:22,621 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cacfeffbd/49136b6ec16a48b0a6edb3bd70827c10/FLAGe0f1d418a [2023-12-19 23:39:22,633 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cacfeffbd/49136b6ec16a48b0a6edb3bd70827c10 [2023-12-19 23:39:22,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:39:22,636 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:39:22,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:22,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:39:22,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:39:22,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:22" (1/1) ... [2023-12-19 23:39:22,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3e68bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:22, skipping insertion in model container [2023-12-19 23:39:22,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:22" (1/1) ... [2023-12-19 23:39:22,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:39:22,857 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2023-12-19 23:39:22,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:22,950 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:39:22,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-19 23:39:22,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] [2023-12-19 23:39:22,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] [2023-12-19 23:39:22,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [453] [2023-12-19 23:39:22,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [520] [2023-12-19 23:39:22,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [624] [2023-12-19 23:39:22,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [633] [2023-12-19 23:39:22,966 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [667] [2023-12-19 23:39:22,998 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product63.cil.c[9205,9218] [2023-12-19 23:39:23,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:23,052 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:39:23,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23 WrapperNode [2023-12-19 23:39:23,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:23,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:23,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:39:23,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:39:23,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,122 INFO L138 Inliner]: procedures = 58, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 232 [2023-12-19 23:39:23,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:23,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:39:23,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:39:23,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:39:23,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,167 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:39:23,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:39:23,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:39:23,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:39:23,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:39:23,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (1/1) ... [2023-12-19 23:39:23,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:23,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:23,265 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) [2023-12-19 23:39:23,288 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 [2023-12-19 23:39:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:39:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:39:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:39:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:39:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:39:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:39:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:39:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:39:23,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:39:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:39:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:39:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:39:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-19 23:39:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-19 23:39:23,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-19 23:39:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:39:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:39:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:39:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:39:23,298 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:39:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:39:23,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:39:23,368 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:39:23,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:39:23,660 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:39:23,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:39:23,709 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:39:23,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:23 BoogieIcfgContainer [2023-12-19 23:39:23,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:39:23,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:39:23,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:39:23,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:39:23,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:39:22" (1/3) ... [2023-12-19 23:39:23,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c64179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:23, skipping insertion in model container [2023-12-19 23:39:23,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:23" (2/3) ... [2023-12-19 23:39:23,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c64179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:23, skipping insertion in model container [2023-12-19 23:39:23,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:23" (3/3) ... [2023-12-19 23:39:23,717 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2023-12-19 23:39:23,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:39:23,734 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:39:23,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:39:23,774 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7287f11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:39:23,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:39:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-19 23:39:23,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:39:23,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:23,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:23,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:23,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:23,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1730622237, now seen corresponding path program 1 times [2023-12-19 23:39:23,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:23,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368742697] [2023-12-19 23:39:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:23,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:39:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:24,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:24,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368742697] [2023-12-19 23:39:24,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368742697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:24,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:24,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:39:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198590023] [2023-12-19 23:39:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:24,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:39:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:24,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:39:24,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:24,067 INFO L87 Difference]: Start difference. First operand has 92 states, 61 states have (on average 1.5081967213114753) internal successors, (92), 72 states have internal predecessors, (92), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:24,157 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2023-12-19 23:39:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:39:24,160 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:39:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:24,166 INFO L225 Difference]: With dead ends: 182 [2023-12-19 23:39:24,167 INFO L226 Difference]: Without dead ends: 87 [2023-12-19 23:39:24,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:24,174 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:24,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:24,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-19 23:39:24,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-12-19 23:39:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 68 states have internal predecessors, (82), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 23:39:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2023-12-19 23:39:24,239 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 17 [2023-12-19 23:39:24,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:24,240 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2023-12-19 23:39:24,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2023-12-19 23:39:24,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:39:24,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:24,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:24,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:39:24,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:24,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:24,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1869698274, now seen corresponding path program 1 times [2023-12-19 23:39:24,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:24,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174189296] [2023-12-19 23:39:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:24,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:39:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:24,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:24,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174189296] [2023-12-19 23:39:24,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174189296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:24,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:24,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421656086] [2023-12-19 23:39:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:24,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:24,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:24,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:24,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:24,397 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:24,462 INFO L93 Difference]: Finished difference Result 144 states and 196 transitions. [2023-12-19 23:39:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-19 23:39:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:24,466 INFO L225 Difference]: With dead ends: 144 [2023-12-19 23:39:24,467 INFO L226 Difference]: Without dead ends: 79 [2023-12-19 23:39:24,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:24,472 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 171 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:24,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-19 23:39:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-12-19 23:39:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 63 states have internal predecessors, (76), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 23:39:24,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2023-12-19 23:39:24,484 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 18 [2023-12-19 23:39:24,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:24,484 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2023-12-19 23:39:24,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2023-12-19 23:39:24,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:39:24,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:24,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:24,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:39:24,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:24,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash -754775484, now seen corresponding path program 1 times [2023-12-19 23:39:24,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:24,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404751775] [2023-12-19 23:39:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:24,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:24,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404751775] [2023-12-19 23:39:24,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404751775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:24,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:24,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:39:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110680064] [2023-12-19 23:39:24,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:24,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:24,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:39:24,626 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:24,783 INFO L93 Difference]: Finished difference Result 208 states and 290 transitions. [2023-12-19 23:39:24,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:39:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-19 23:39:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:24,790 INFO L225 Difference]: With dead ends: 208 [2023-12-19 23:39:24,790 INFO L226 Difference]: Without dead ends: 131 [2023-12-19 23:39:24,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:24,796 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 121 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:24,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 226 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:24,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-19 23:39:24,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2023-12-19 23:39:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 91 states have internal predecessors, (113), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2023-12-19 23:39:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 156 transitions. [2023-12-19 23:39:24,822 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 156 transitions. Word has length 21 [2023-12-19 23:39:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:24,822 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 156 transitions. [2023-12-19 23:39:24,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-12-19 23:39:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-19 23:39:24,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:24,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:24,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:39:24,825 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:24,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1152164823, now seen corresponding path program 1 times [2023-12-19 23:39:24,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:24,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441460567] [2023-12-19 23:39:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:24,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:39:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:24,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:24,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441460567] [2023-12-19 23:39:24,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441460567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:24,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:24,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:39:24,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829178472] [2023-12-19 23:39:24,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:24,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:24,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:24,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:24,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:39:24,932 INFO L87 Difference]: Start difference. First operand 114 states and 156 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:25,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:25,001 INFO L93 Difference]: Finished difference Result 330 states and 469 transitions. [2023-12-19 23:39:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:39:25,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-12-19 23:39:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:25,007 INFO L225 Difference]: With dead ends: 330 [2023-12-19 23:39:25,007 INFO L226 Difference]: Without dead ends: 218 [2023-12-19 23:39:25,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:25,012 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 79 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:25,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 267 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-19 23:39:25,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2023-12-19 23:39:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 147 states have (on average 1.4149659863945578) internal successors, (208), 170 states have internal predecessors, (208), 42 states have call successors, (42), 28 states have call predecessors, (42), 26 states have return successors, (47), 28 states have call predecessors, (47), 42 states have call successors, (47) [2023-12-19 23:39:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 297 transitions. [2023-12-19 23:39:25,045 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 297 transitions. Word has length 24 [2023-12-19 23:39:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:25,045 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 297 transitions. [2023-12-19 23:39:25,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 297 transitions. [2023-12-19 23:39:25,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:39:25,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:25,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:25,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:39:25,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:25,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash 364834820, now seen corresponding path program 1 times [2023-12-19 23:39:25,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:25,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541593134] [2023-12-19 23:39:25,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:25,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:39:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:25,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541593134] [2023-12-19 23:39:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541593134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:25,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:25,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549533021] [2023-12-19 23:39:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:25,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:25,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:25,095 INFO L87 Difference]: Start difference. First operand 216 states and 297 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:25,162 INFO L93 Difference]: Finished difference Result 491 states and 687 transitions. [2023-12-19 23:39:25,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:25,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-12-19 23:39:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:25,164 INFO L225 Difference]: With dead ends: 491 [2023-12-19 23:39:25,164 INFO L226 Difference]: Without dead ends: 277 [2023-12-19 23:39:25,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:25,166 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 69 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:25,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 157 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-19 23:39:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 273. [2023-12-19 23:39:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 192 states have (on average 1.3385416666666667) internal successors, (257), 209 states have internal predecessors, (257), 43 states have call successors, (43), 38 states have call predecessors, (43), 37 states have return successors, (59), 40 states have call predecessors, (59), 43 states have call successors, (59) [2023-12-19 23:39:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 359 transitions. [2023-12-19 23:39:25,204 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 359 transitions. Word has length 26 [2023-12-19 23:39:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:25,204 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 359 transitions. [2023-12-19 23:39:25,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 359 transitions. [2023-12-19 23:39:25,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 23:39:25,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:25,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:25,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:39:25,213 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:25,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash -135065265, now seen corresponding path program 1 times [2023-12-19 23:39:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:25,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397918052] [2023-12-19 23:39:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:39:25,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 23:39:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 23:39:25,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 23:39:25,260 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 23:39:25,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:39:25,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:39:25,264 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 23:39:25,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:39:25,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:39:25 BoogieIcfgContainer [2023-12-19 23:39:25,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:39:25,305 INFO L158 Benchmark]: Toolchain (without parser) took 2668.42ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 132.1MB in the beginning and 140.8MB in the end (delta: -8.7MB). Peak memory consumption was 92.4MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,305 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:39:25,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.25ms. Allocated memory is still 185.6MB. Free memory was 132.1MB in the beginning and 111.6MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.29ms. Allocated memory is still 185.6MB. Free memory was 111.6MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,305 INFO L158 Benchmark]: Boogie Preprocessor took 72.39ms. Allocated memory is still 185.6MB. Free memory was 109.5MB in the beginning and 107.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,305 INFO L158 Benchmark]: RCFGBuilder took 513.87ms. Allocated memory is still 185.6MB. Free memory was 107.0MB in the beginning and 83.3MB in the end (delta: 23.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,306 INFO L158 Benchmark]: TraceAbstraction took 1592.01ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 82.7MB in the beginning and 140.8MB in the end (delta: -58.1MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:25,307 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.25ms. Allocated memory is still 185.6MB. Free memory was 132.1MB in the beginning and 111.6MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.29ms. Allocated memory is still 185.6MB. Free memory was 111.6MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.39ms. Allocated memory is still 185.6MB. Free memory was 109.5MB in the beginning and 107.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 513.87ms. Allocated memory is still 185.6MB. Free memory was 107.0MB in the beginning and 83.3MB in the end (delta: 23.7MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1592.01ms. Allocated memory was 185.6MB in the beginning and 285.2MB in the end (delta: 99.6MB). Free memory was 82.7MB in the beginning and 140.8MB in the end (delta: -58.1MB). Peak memory consumption was 43.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [153] - GenericResultAtLocation [Line: 188]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [188] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [453] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [520] - GenericResultAtLocation [Line: 624]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [624] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [633] - GenericResultAtLocation [Line: 667]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [667] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 629]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L198] int pumpRunning = 0; [L199] int systemActive = 1; [L522] int waterLevel = 1; [L523] int methaneLevelCritical = 0; [L837] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L455] int splverifierCounter ; [L456] int tmp ; [L457] int tmp___0 ; [L458] int tmp___1 ; [L459] int tmp___2 ; [L462] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L464] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L466] COND TRUE splverifierCounter < 4 [L472] tmp = __VERIFIER_nondet_int() [L474] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L476] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE waterLevel < 2 [L541] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L476] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L482] tmp___0 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L492] tmp___2 = __VERIFIER_nondet_int() [L494] COND FALSE !(\read(tmp___2)) [L498] tmp___1 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___1) [L502] CALL stopSystem() [L442] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L449] systemActive = 0 [L502] RET stopSystem() [L509] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L206] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L213] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] CALL __utac_acc__Specification3_spec__1() [L635] int tmp ; [L636] int tmp___0 ; [L637] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L561] int retValue_acc ; [L564] retValue_acc = methaneLevelCritical [L565] return (retValue_acc); [L641] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] tmp = isMethaneLevelCritical() [L643] COND FALSE !(\read(tmp)) [L647] CALL, EXPR getWaterLevel() [L593] int retValue_acc ; [L596] retValue_acc = waterLevel [L597] return (retValue_acc); [L647] RET, EXPR getWaterLevel() [L647] tmp___0 = getWaterLevel() [L649] COND TRUE tmp___0 == 2 [L651] CALL, EXPR isPumpRunning() [L356] int retValue_acc ; [L359] retValue_acc = pumpRunning [L360] return (retValue_acc); [L651] RET, EXPR isPumpRunning() [L651] tmp___1 = isPumpRunning() [L653] COND FALSE !(\read(tmp___1)) [L657] CALL __automaton_fail() [L629] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 283 mSDsluCounter, 929 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 482 mSDtfsCounter, 212 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=273occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 23 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-19 23:39:25,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...