/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_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:39:28,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:39:28,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:39:28,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:39:28,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:39:28,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:39:28,811 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:39:28,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:39:28,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:39:28,812 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:39:28,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:39:28,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:39:28,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:39:28,813 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:39:28,813 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:39:28,813 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:39:28,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:39:28,814 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:39:28,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:39:28,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:39:28,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:39:28,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:39:28,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:39:28,815 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:39:28,815 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:39:28,816 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:39:28,816 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:39:28,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:39:28,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:39:28,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:39:28,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:39:28,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:39:28,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:39:28,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:39:28,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:39:28,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:39:28,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:39:28,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:39:28,818 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:39:28,818 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:39:28,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:39:28,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:39:28,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:39:28,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:39:28,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:39:28,820 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:39:28,820 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:39:28,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:39:28,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:39:28,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:39:28,969 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:39:28,970 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:39:28,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2023-12-16 17:39:29,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:39:30,113 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:39:30,113 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2023-12-16 17:39:30,121 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e053cb056/06906f207b474c409e4fdd83a6fde3fe/FLAGdf099b349 [2023-12-16 17:39:30,514 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e053cb056/06906f207b474c409e4fdd83a6fde3fe [2023-12-16 17:39:30,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:39:30,517 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:39:30,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:39:30,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:39:30,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:39:30,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:30,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f795d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30, skipping insertion in model container [2023-12-16 17:39:30,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:30,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:39:30,695 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_spec1_product58.cil.c[1605,1618] [2023-12-16 17:39:30,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:30,813 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:39:30,819 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:39:30,832 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_spec1_product58.cil.c[1605,1618] [2023-12-16 17:39:30,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:30,886 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:39:30,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-16 17:39:30,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] [2023-12-16 17:39:30,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] [2023-12-16 17:39:30,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] [2023-12-16 17:39:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] [2023-12-16 17:39:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] [2023-12-16 17:39:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] [2023-12-16 17:39:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] [2023-12-16 17:39:30,900 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_spec1_product58.cil.c[1605,1618] [2023-12-16 17:39:30,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:30,958 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:39:30,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30 WrapperNode [2023-12-16 17:39:30,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:39:30,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:39:30,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:39:30,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:39:30,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:30,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,001 INFO L138 Inliner]: procedures = 59, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 205 [2023-12-16 17:39:31,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:39:31,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:39:31,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:39:31,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:39:31,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,034 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]. [2023-12-16 17:39:31,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,034 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:39:31,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:39:31,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:39:31,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:39:31,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (1/1) ... [2023-12-16 17:39:31,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:39:31,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:39:31,080 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) [2023-12-16 17:39:31,093 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 [2023-12-16 17:39:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:39:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:39:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:39:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:39:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:39:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:39:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:39:31,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:39:31,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:39:31,106 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:39:31,106 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:39:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:39:31,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:39:31,157 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:39:31,159 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:39:31,365 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:39:31,443 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:39:31,443 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:39:31,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:39:31 BoogieIcfgContainer [2023-12-16 17:39:31,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:39:31,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:39:31,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:39:31,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:39:31,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:39:30" (1/3) ... [2023-12-16 17:39:31,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd78a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:39:31, skipping insertion in model container [2023-12-16 17:39:31,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:30" (2/3) ... [2023-12-16 17:39:31,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd78a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:39:31, skipping insertion in model container [2023-12-16 17:39:31,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:39:31" (3/3) ... [2023-12-16 17:39:31,449 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2023-12-16 17:39:31,459 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:39:31,459 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:39:31,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:39:31,494 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;@3fc205cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:39:31,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:39:31,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-16 17:39:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-16 17:39:31,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:31,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:31,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:31,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:31,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1578107500, now seen corresponding path program 1 times [2023-12-16 17:39:31,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:31,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443515588] [2023-12-16 17:39:31,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:31,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:31,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:31,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:31,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:39:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:31,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:39:31,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:31,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:31,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:31,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443515588] [2023-12-16 17:39:31,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443515588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:31,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:31,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939393135] [2023-12-16 17:39:31,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:39:31,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:31,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:39:31,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:39:31,742 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:39:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:31,821 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2023-12-16 17:39:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:39:31,822 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 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 16 [2023-12-16 17:39:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:31,829 INFO L225 Difference]: With dead ends: 140 [2023-12-16 17:39:31,830 INFO L226 Difference]: Without dead ends: 66 [2023-12-16 17:39:31,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:39:31,837 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:31,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:31,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-16 17:39:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-16 17:39:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.425531914893617) internal successors, (67), 54 states have internal predecessors, (67), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-16 17:39:31,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-12-16 17:39:31,869 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 16 [2023-12-16 17:39:31,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:31,869 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-12-16 17:39:31,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:39:31,870 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-12-16 17:39:31,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:39:31,872 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:31,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:31,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:32,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:32,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:32,075 INFO L85 PathProgramCache]: Analyzing trace with hash -728475820, now seen corresponding path program 1 times [2023-12-16 17:39:32,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:32,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281905877] [2023-12-16 17:39:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:32,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:32,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:32,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:39:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:32,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:39:32,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:32,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:32,174 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:32,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281905877] [2023-12-16 17:39:32,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [281905877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:32,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:39:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685417049] [2023-12-16 17:39:32,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:32,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:32,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:32,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,176 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:39:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:32,214 INFO L93 Difference]: Finished difference Result 105 states and 143 transitions. [2023-12-16 17:39:32,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:32,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 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 [2023-12-16 17:39:32,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:32,228 INFO L225 Difference]: With dead ends: 105 [2023-12-16 17:39:32,228 INFO L226 Difference]: Without dead ends: 58 [2023-12-16 17:39:32,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,230 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:32,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 119 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-16 17:39:32,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-16 17:39:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 49 states have internal predecessors, (61), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:39:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-12-16 17:39:32,235 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-12-16 17:39:32,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:32,235 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-12-16 17:39:32,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 17:39:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-12-16 17:39:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 17:39:32,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:32,236 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] [2023-12-16 17:39:32,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:32,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:32,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:32,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1880637593, now seen corresponding path program 1 times [2023-12-16 17:39:32,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:32,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100964768] [2023-12-16 17:39:32,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:32,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:32,442 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:32,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:39:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:32,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:39:32,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:32,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:32,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:32,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:32,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100964768] [2023-12-16 17:39:32,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100964768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:32,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:32,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:39:32,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776400963] [2023-12-16 17:39:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:32,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:32,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,521 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-16 17:39:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:32,565 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2023-12-16 17:39:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:32,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2023-12-16 17:39:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:32,567 INFO L225 Difference]: With dead ends: 114 [2023-12-16 17:39:32,568 INFO L226 Difference]: Without dead ends: 58 [2023-12-16 17:39:32,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,569 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 74 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 64 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 [2023-12-16 17:39:32,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 64 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-16 17:39:32,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-16 17:39:32,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 49 states have internal predecessors, (60), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 17:39:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2023-12-16 17:39:32,574 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 20 [2023-12-16 17:39:32,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:32,575 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2023-12-16 17:39:32,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-12-16 17:39:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2023-12-16 17:39:32,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-16 17:39:32,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:32,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:32,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 17:39:32,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:32,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:32,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1083229865, now seen corresponding path program 1 times [2023-12-16 17:39:32,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:32,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534969883] [2023-12-16 17:39:32,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:32,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:32,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:32,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:32,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:39:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:32,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:32,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:32,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:32,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:32,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534969883] [2023-12-16 17:39:32,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534969883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:32,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:32,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:32,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654344621] [2023-12-16 17:39:32,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:32,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:32,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:32,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:32,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,934 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2023-12-16 17:39:32,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:32,976 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2023-12-16 17:39:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:32,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 25 [2023-12-16 17:39:32,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:32,978 INFO L225 Difference]: With dead ends: 153 [2023-12-16 17:39:32,978 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 17:39:32,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:32,979 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 52 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:32,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 117 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 17:39:32,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-12-16 17:39:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-16 17:39:32,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 125 transitions. [2023-12-16 17:39:32,989 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 125 transitions. Word has length 25 [2023-12-16 17:39:32,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:32,990 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 125 transitions. [2023-12-16 17:39:32,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2023-12-16 17:39:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2023-12-16 17:39:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 17:39:32,990 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:32,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:32,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:33,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:33,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:33,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash -261711306, now seen corresponding path program 1 times [2023-12-16 17:39:33,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:33,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093271830] [2023-12-16 17:39:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:33,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:33,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:33,195 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:33,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:39:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:33,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:39:33,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:33,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:33,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093271830] [2023-12-16 17:39:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093271830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:33,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:33,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:39:33,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036235838] [2023-12-16 17:39:33,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:33,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:39:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:39:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:39:33,314 INFO L87 Difference]: Start difference. First operand 95 states and 125 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:39:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:33,442 INFO L93 Difference]: Finished difference Result 279 states and 376 transitions. [2023-12-16 17:39:33,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:39:33,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-12-16 17:39:33,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:33,444 INFO L225 Difference]: With dead ends: 279 [2023-12-16 17:39:33,444 INFO L226 Difference]: Without dead ends: 186 [2023-12-16 17:39:33,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:39:33,445 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 41 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:33,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 298 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:33,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-16 17:39:33,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2023-12-16 17:39:33,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 133 states have (on average 1.3458646616541354) internal successors, (179), 148 states have internal predecessors, (179), 26 states have call successors, (26), 24 states have call predecessors, (26), 24 states have return successors, (36), 26 states have call predecessors, (36), 26 states have call successors, (36) [2023-12-16 17:39:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 241 transitions. [2023-12-16 17:39:33,460 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 241 transitions. Word has length 35 [2023-12-16 17:39:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:33,460 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 241 transitions. [2023-12-16 17:39:33,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 17:39:33,460 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 241 transitions. [2023-12-16 17:39:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 17:39:33,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:33,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:33,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-16 17:39:33,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:33,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:33,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1968102414, now seen corresponding path program 1 times [2023-12-16 17:39:33,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:33,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840830585] [2023-12-16 17:39:33,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:33,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:33,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:33,666 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:33,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:39:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:33,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:39:33,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:33,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:33,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:33,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:33,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840830585] [2023-12-16 17:39:33,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840830585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:33,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:33,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:39:33,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012574610] [2023-12-16 17:39:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:33,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:39:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:39:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:39:33,771 INFO L87 Difference]: Start difference. First operand 184 states and 241 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:39:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:33,926 INFO L93 Difference]: Finished difference Result 226 states and 289 transitions. [2023-12-16 17:39:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:39:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-12-16 17:39:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:33,928 INFO L225 Difference]: With dead ends: 226 [2023-12-16 17:39:33,928 INFO L226 Difference]: Without dead ends: 224 [2023-12-16 17:39:33,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:39:33,929 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 87 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:33,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 160 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-12-16 17:39:33,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2023-12-16 17:39:33,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 157 states have (on average 1.305732484076433) internal successors, (205), 172 states have internal predecessors, (205), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:39:33,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 281 transitions. [2023-12-16 17:39:33,945 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 281 transitions. Word has length 39 [2023-12-16 17:39:33,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:33,946 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 281 transitions. [2023-12-16 17:39:33,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 17:39:33,946 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2023-12-16 17:39:33,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 17:39:33,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:33,947 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:33,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:39:34,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,150 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:34,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash 242405577, now seen corresponding path program 1 times [2023-12-16 17:39:34,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:34,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789139707] [2023-12-16 17:39:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:34,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:34,153 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:34,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:39:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:34,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:34,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:39:34,226 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:34,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:34,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789139707] [2023-12-16 17:39:34,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789139707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:34,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:34,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:39:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469240065] [2023-12-16 17:39:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:34,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:39:34,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:39:34,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:34,228 INFO L87 Difference]: Start difference. First operand 218 states and 281 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:34,274 INFO L93 Difference]: Finished difference Result 442 states and 588 transitions. [2023-12-16 17:39:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:39:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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 42 [2023-12-16 17:39:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:34,278 INFO L225 Difference]: With dead ends: 442 [2023-12-16 17:39:34,278 INFO L226 Difference]: Without dead ends: 226 [2023-12-16 17:39:34,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:34,280 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 2 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:34,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 189 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:34,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-16 17:39:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 222. [2023-12-16 17:39:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 161 states have (on average 1.2981366459627328) internal successors, (209), 176 states have internal predecessors, (209), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:39:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 285 transitions. [2023-12-16 17:39:34,299 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 285 transitions. Word has length 42 [2023-12-16 17:39:34,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:34,299 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 285 transitions. [2023-12-16 17:39:34,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 285 transitions. [2023-12-16 17:39:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 17:39:34,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:34,301 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:34,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-16 17:39:34,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,505 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:34,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash -575242873, now seen corresponding path program 1 times [2023-12-16 17:39:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:34,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306990766] [2023-12-16 17:39:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:34,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:34,605 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:34,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:39:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:34,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:34,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:39:34,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:34,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:34,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306990766] [2023-12-16 17:39:34,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306990766] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:34,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:34,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:39:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967178264] [2023-12-16 17:39:34,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:34,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:39:34,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:34,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:39:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:34,665 INFO L87 Difference]: Start difference. First operand 222 states and 285 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:34,710 INFO L93 Difference]: Finished difference Result 456 states and 604 transitions. [2023-12-16 17:39:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:39:34,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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 42 [2023-12-16 17:39:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:34,712 INFO L225 Difference]: With dead ends: 456 [2023-12-16 17:39:34,712 INFO L226 Difference]: Without dead ends: 236 [2023-12-16 17:39:34,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:39:34,713 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 6 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:34,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 195 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:34,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-12-16 17:39:34,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 226. [2023-12-16 17:39:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 165 states have (on average 1.290909090909091) internal successors, (213), 180 states have internal predecessors, (213), 30 states have call successors, (30), 24 states have call predecessors, (30), 30 states have return successors, (46), 32 states have call predecessors, (46), 30 states have call successors, (46) [2023-12-16 17:39:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 289 transitions. [2023-12-16 17:39:34,729 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 289 transitions. Word has length 42 [2023-12-16 17:39:34,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:34,729 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 289 transitions. [2023-12-16 17:39:34,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 289 transitions. [2023-12-16 17:39:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-16 17:39:34,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:34,730 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:34,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:39:34,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:34,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:34,933 INFO L85 PathProgramCache]: Analyzing trace with hash -356388155, now seen corresponding path program 1 times [2023-12-16 17:39:34,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:34,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287169903] [2023-12-16 17:39:34,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:34,933 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:34,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:34,941 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:34,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:39:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:34,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:34,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 17:39:35,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:35,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:35,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287169903] [2023-12-16 17:39:35,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287169903] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:35,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:35,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:35,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593313463] [2023-12-16 17:39:35,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:35,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:35,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:35,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:35,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:35,006 INFO L87 Difference]: Start difference. First operand 226 states and 289 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:35,078 INFO L93 Difference]: Finished difference Result 531 states and 684 transitions. [2023-12-16 17:39:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:35,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 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 42 [2023-12-16 17:39:35,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:35,080 INFO L225 Difference]: With dead ends: 531 [2023-12-16 17:39:35,080 INFO L226 Difference]: Without dead ends: 307 [2023-12-16 17:39:35,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:35,082 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 28 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:35,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 122 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-16 17:39:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-12-16 17:39:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 224 states have (on average 1.2589285714285714) internal successors, (282), 241 states have internal predecessors, (282), 42 states have call successors, (42), 36 states have call predecessors, (42), 40 states have return successors, (59), 42 states have call predecessors, (59), 42 states have call successors, (59) [2023-12-16 17:39:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 383 transitions. [2023-12-16 17:39:35,138 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 383 transitions. Word has length 42 [2023-12-16 17:39:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:35,138 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 383 transitions. [2023-12-16 17:39:35,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 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) [2023-12-16 17:39:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 383 transitions. [2023-12-16 17:39:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-16 17:39:35,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:35,139 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:35,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:35,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:35,340 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:35,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:35,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1181880981, now seen corresponding path program 1 times [2023-12-16 17:39:35,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:35,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103051355] [2023-12-16 17:39:35,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:35,341 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:35,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:35,342 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:35,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:39:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:35,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:39:35,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:39:35,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:35,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:35,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103051355] [2023-12-16 17:39:35,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103051355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:35,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:35,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 17:39:35,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813801368] [2023-12-16 17:39:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:35,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:39:35,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:35,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:39:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:39:35,489 INFO L87 Difference]: Start difference. First operand 307 states and 383 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:39:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:35,636 INFO L93 Difference]: Finished difference Result 601 states and 752 transitions. [2023-12-16 17:39:35,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:39:35,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2023-12-16 17:39:35,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:35,647 INFO L225 Difference]: With dead ends: 601 [2023-12-16 17:39:35,647 INFO L226 Difference]: Without dead ends: 296 [2023-12-16 17:39:35,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:39:35,648 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 53 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:35,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 369 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:35,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-16 17:39:35,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-12-16 17:39:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 216 states have (on average 1.2407407407407407) internal successors, (268), 232 states have internal predecessors, (268), 41 states have call successors, (41), 36 states have call predecessors, (41), 38 states have return successors, (51), 40 states have call predecessors, (51), 41 states have call successors, (51) [2023-12-16 17:39:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 360 transitions. [2023-12-16 17:39:35,684 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 360 transitions. Word has length 46 [2023-12-16 17:39:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:35,684 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 360 transitions. [2023-12-16 17:39:35,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 17:39:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 360 transitions. [2023-12-16 17:39:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:39:35,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:35,686 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-16 17:39:35,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:35,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:35,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:35,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:35,888 INFO L85 PathProgramCache]: Analyzing trace with hash -801837340, now seen corresponding path program 1 times [2023-12-16 17:39:35,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:35,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659612760] [2023-12-16 17:39:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:35,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:35,890 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:35,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:39:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:35,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:39:35,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:36,101 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 17:39:36,102 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:39:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:39:36,384 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:36,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659612760] [2023-12-16 17:39:36,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659612760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:39:36,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:39:36,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-12-16 17:39:36,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504551883] [2023-12-16 17:39:36,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:39:36,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 17:39:36,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:36,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 17:39:36,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:39:36,385 INFO L87 Difference]: Start difference. First operand 296 states and 360 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-16 17:39:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:37,068 INFO L93 Difference]: Finished difference Result 1531 states and 2055 transitions. [2023-12-16 17:39:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 17:39:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) Word has length 79 [2023-12-16 17:39:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:37,074 INFO L225 Difference]: With dead ends: 1531 [2023-12-16 17:39:37,074 INFO L226 Difference]: Without dead ends: 1318 [2023-12-16 17:39:37,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2023-12-16 17:39:37,076 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 678 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:37,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 373 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:39:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2023-12-16 17:39:37,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1222. [2023-12-16 17:39:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 886 states have (on average 1.242663656884876) internal successors, (1101), 958 states have internal predecessors, (1101), 172 states have call successors, (172), 140 states have call predecessors, (172), 163 states have return successors, (304), 177 states have call predecessors, (304), 172 states have call successors, (304) [2023-12-16 17:39:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1577 transitions. [2023-12-16 17:39:37,143 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1577 transitions. Word has length 79 [2023-12-16 17:39:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:37,143 INFO L495 AbstractCegarLoop]: Abstraction has 1222 states and 1577 transitions. [2023-12-16 17:39:37,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 11 states have internal predecessors, (88), 8 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (17), 6 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-16 17:39:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1577 transitions. [2023-12-16 17:39:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-16 17:39:37,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:37,145 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-16 17:39:37,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-16 17:39:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:37,348 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:37,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1619485790, now seen corresponding path program 1 times [2023-12-16 17:39:37,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:37,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087048481] [2023-12-16 17:39:37,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:37,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:37,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:37,354 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:39:37,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:39:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:37,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:37,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:37,409 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:39:37,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:37,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:37,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087048481] [2023-12-16 17:39:37,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087048481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:37,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:37,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:39:37,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528290132] [2023-12-16 17:39:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:37,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:39:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:39:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:37,410 INFO L87 Difference]: Start difference. First operand 1222 states and 1577 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:39:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:37,455 INFO L93 Difference]: Finished difference Result 1472 states and 1876 transitions. [2023-12-16 17:39:37,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:39:37,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2023-12-16 17:39:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:37,456 INFO L225 Difference]: With dead ends: 1472 [2023-12-16 17:39:37,456 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 17:39:37,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:37,459 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:37,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 164 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 17:39:37,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 17:39:37,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 17:39:37,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 17:39:37,460 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2023-12-16 17:39:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:37,460 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 17:39:37,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 17:39:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 17:39:37,461 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 17:39:37,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:39:37,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:37,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:39:37,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 17:39:39,098 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 304 310) no Hoare annotation was computed. [2023-12-16 17:39:39,099 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 304 310) the Hoare annotation is: true [2023-12-16 17:39:39,099 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2023-12-16 17:39:39,100 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 93 104) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= |old(~methaneLevelCritical~0)| (_ bv0 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse6 (not (= |old(~methaneLevelCritical~0)| (_ bv1 32)))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6 .cse7) (or .cse4 .cse0 .cse1 .cse3 .cse5) (or .cse4 .cse0 .cse2 .cse6 .cse7))) [2023-12-16 17:39:39,100 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2023-12-16 17:39:39,100 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2023-12-16 17:39:39,100 INFO L899 garLoopResultBuilder]: For program point L481-2(lines 481 485) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L895 garLoopResultBuilder]: At program point L506(line 506) the Hoare annotation is: (let ((.cse13 (= ~waterLevel~0 (_ bv2 32))) (.cse14 (= (_ bv2 32) |old(~waterLevel~0)|)) (.cse11 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse7 (and .cse13 .cse14 .cse11 .cse9 .cse10 .cse12)) (.cse5 (not .cse14)) (.cse8 (and .cse13 .cse14 .cse11)) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse12)) (.cse1 (not .cse11)) (.cse2 (not .cse10)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse6 (not .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse1 .cse6 .cse7) (or .cse5 .cse1 .cse2 .cse6 .cse7) (or .cse5 .cse0 .cse1 .cse8 .cse4) (or .cse5 .cse1 .cse8 .cse2 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse6)))) [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L506-1(line 506) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 69 80) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L284-1(lines 283 302) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 354) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 359) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 500 524) no Hoare annotation was computed. [2023-12-16 17:39:39,102 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-16 17:39:39,104 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 280 303) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (and (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (and (= ~waterLevel~0 (_ bv2 32)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse7 (not (= ~methaneLevelCritical~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse7) (or .cse5 .cse1 .cse6 .cse7))) [2023-12-16 17:39:39,104 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse3 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse4 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32))))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse4 .cse2) (or .cse0 .cse1 .cse5) (or .cse1 .cse3 .cse4 .cse5))) [2023-12-16 17:39:39,104 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 280 303) no Hoare annotation was computed. [2023-12-16 17:39:39,104 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L895 garLoopResultBuilder]: At program point L357(line 357) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0))) (let ((.cse0 (and (= ~waterLevel~0 (_ bv1 32)) .cse9)) (.cse2 (not .cse8)) (.cse3 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse6 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse7 (and (= ~waterLevel~0 (_ bv2 32)) .cse8 .cse9))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse3 .cse5) (or .cse6 .cse1 .cse4 .cse7) (or .cse6 .cse1 .cse5 .cse7)))) [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 338 362) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L902 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2023-12-16 17:39:39,105 INFO L902 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2023-12-16 17:39:39,105 INFO L902 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 201) the Hoare annotation is: true [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L197(lines 172 201) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 105 113) the Hoare annotation is: true [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 105 113) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2023-12-16 17:39:39,105 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 556 562) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L895 garLoopResultBuilder]: At program point L581(lines 536 583) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:39:39,106 INFO L895 garLoopResultBuilder]: At program point L548(line 548) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L895 garLoopResultBuilder]: At program point L574-2(lines 566 579) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse3) (and .cse4 .cse1 .cse5 .cse3 .cse6) (and .cse1 .cse5 .cse2 .cse3 .cse6))) [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L537(lines 536 583) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 579) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L895 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse2 .cse3 .cse4))) [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L587(lines 526 591) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 552) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L546-1(lines 546 552) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L895 garLoopResultBuilder]: At program point L584(lines 535 585) the Hoare annotation is: false [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 328) no Hoare annotation was computed. [2023-12-16 17:39:39,106 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 333) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L895 garLoopResultBuilder]: At program point L331(line 331) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse2 .cse3 .cse5))) [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 312 336) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 312 336) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse5 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse1 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse6 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse3 (not (= ~waterLevel~0 (_ bv1 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse0 .cse5 .cse1 .cse6 .cse4) (or .cse0 .cse1 .cse6 .cse3 .cse4))) [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 146 159) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 312 336) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 385) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L379-2(lines 372 388) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L895 garLoopResultBuilder]: At program point L402(line 402) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse0 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (not (= |old(~pumpRunning~0)| (_ bv0 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse6 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse5 .cse6) (or .cse0 .cse2 .cse3 .cse6))) [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L402-1(line 402) no Hoare annotation was computed. [2023-12-16 17:39:39,107 INFO L899 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2023-12-16 17:39:39,108 INFO L899 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2023-12-16 17:39:39,108 INFO L895 garLoopResultBuilder]: At program point L326(line 326) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| (_ bv0 32))) (.cse7 (= ~systemActive~0 (_ bv1 32)))) (let ((.cse1 (not (= ~waterLevel~0 (_ bv2 32)))) (.cse3 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse0 (not .cse7)) (.cse2 (not .cse8)) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse4 (and .cse7 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| (_ bv0 32)) .cse8 (= (_ bv0 32) ~pumpRunning~0))) (.cse6 (not (= ~waterLevel~0 (_ bv1 32))))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse2 .cse3 .cse4 .cse6) (or .cse0 .cse2 .cse5 .cse4 .cse6)))) [2023-12-16 17:39:39,108 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2023-12-16 17:39:39,108 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 81 92) the Hoare annotation is: (let ((.cse0 (not (= (_ bv2 32) |old(~waterLevel~0)|))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (not (= ~methaneLevelCritical~0 (_ bv0 32)))) (.cse2 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse3 (not (= ~systemActive~0 (_ bv1 32)))) (.cse6 (not (= (_ bv1 32) |old(~waterLevel~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 (_ bv1 32)))) (.cse7 (= ~waterLevel~0 (_ bv1 32)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse2 .cse3 .cse6 .cse7 .cse5) (or .cse2 .cse3 .cse6 .cse4 .cse7))) [2023-12-16 17:39:39,109 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2023-12-16 17:39:39,111 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:39,112 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:39:39,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:39:39 BoogieIcfgContainer [2023-12-16 17:39:39,120 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:39:39,121 INFO L158 Benchmark]: Toolchain (without parser) took 8603.76ms. Allocated memory was 264.2MB in the beginning and 325.1MB in the end (delta: 60.8MB). Free memory was 221.6MB in the beginning and 164.0MB in the end (delta: 57.6MB). Peak memory consumption was 118.0MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,121 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:39:39,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.34ms. Allocated memory is still 264.2MB. Free memory was 221.6MB in the beginning and 195.2MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.78ms. Allocated memory is still 264.2MB. Free memory was 195.2MB in the beginning and 193.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,122 INFO L158 Benchmark]: Boogie Preprocessor took 50.27ms. Allocated memory is still 264.2MB. Free memory was 193.0MB in the beginning and 190.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,122 INFO L158 Benchmark]: RCFGBuilder took 390.38ms. Allocated memory is still 264.2MB. Free memory was 190.4MB in the beginning and 226.0MB in the end (delta: -35.5MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,122 INFO L158 Benchmark]: TraceAbstraction took 7675.16ms. Allocated memory was 264.2MB in the beginning and 325.1MB in the end (delta: 60.8MB). Free memory was 225.3MB in the beginning and 164.0MB in the end (delta: 61.3MB). Peak memory consumption was 121.7MB. Max. memory is 8.0GB. [2023-12-16 17:39:39,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 219.2MB. Free memory is still 170.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 441.34ms. Allocated memory is still 264.2MB. Free memory was 221.6MB in the beginning and 195.2MB in the end (delta: 26.3MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.78ms. Allocated memory is still 264.2MB. Free memory was 195.2MB in the beginning and 193.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.27ms. Allocated memory is still 264.2MB. Free memory was 193.0MB in the beginning and 190.4MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 390.38ms. Allocated memory is still 264.2MB. Free memory was 190.4MB in the beginning and 226.0MB in the end (delta: -35.5MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 7675.16ms. Allocated memory was 264.2MB in the beginning and 325.1MB in the end (delta: 60.8MB). Free memory was 225.3MB in the beginning and 164.0MB in the end (delta: 61.3MB). Peak memory consumption was 121.7MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [58] - GenericResultAtLocation [Line: 169]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [169] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [271] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [499] - GenericResultAtLocation [Line: 525]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [525] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [592] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [627] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1057 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1033 mSDsluCounter, 2250 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1406 mSDsCounter, 328 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1167 IncrementalHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 328 mSolverCounterUnsat, 844 mSDtfsCounter, 1167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1222occurred in iteration=11, InterpolantAutomatonStates: 70, 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, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 836 PreInvPairs, 889 NumberOfFragments, 1178 HoareAnnotationTreeSize, 836 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 1078 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 548 ConstructedInterpolants, 0 QuantifiedInterpolants, 1086 SizeOfPredicates, 16 NumberOfNonLiveVariables, 1299 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 75/86 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: 535]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: ((((((((waterLevel == 2) && (systemActive == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning)) || ((((waterLevel == 2) && (methaneLevelCritical == 0)) && (systemActive == 1)) && (splverifierCounter == 0))) || (((((methaneLevelCritical == 0) && (systemActive == 1)) && (waterLevel == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) || (((((systemActive == 1) && (waterLevel == 1)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) && (0 == pumpRunning))) RESULT: Ultimate proved your program to be correct! [2023-12-16 17:39:39,156 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...