/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_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:39:12,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:39:12,484 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 17:39:12,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:39:12,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:39:12,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:39:12,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:39:12,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:39:12,529 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:39:12,532 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:39:12,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:39:12,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:39:12,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:39:12,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:39:12,534 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:39:12,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:39:12,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:39:12,535 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:39:12,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:39:12,535 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:39:12,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:39:12,536 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:39:12,537 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:39:12,537 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:39:12,537 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:39:12,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:39:12,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:39:12,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:39:12,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:39:12,540 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:39:12,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:39:12,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:39:12,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:39:12,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:39:12,742 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:39:12,742 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:39:12,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2023-12-16 17:39:13,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:39:13,976 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:39:13,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2023-12-16 17:39:13,991 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efce4946e/289aab1033cb4c96b880e36fea7b5389/FLAG26a9efccf [2023-12-16 17:39:14,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efce4946e/289aab1033cb4c96b880e36fea7b5389 [2023-12-16 17:39:14,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:39:14,004 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:39:14,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:39:14,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:39:14,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:39:14,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7695d507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14, skipping insertion in model container [2023-12-16 17:39:14,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:39:14,217 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_product37.cil.c[13023,13036] [2023-12-16 17:39:14,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:14,244 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:39:14,263 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:39:14,305 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_product37.cil.c[13023,13036] [2023-12-16 17:39:14,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:14,317 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:39:14,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-12-16 17:39:14,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2023-12-16 17:39:14,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [519] [2023-12-16 17:39:14,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] [2023-12-16 17:39:14,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [557] [2023-12-16 17:39:14,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] [2023-12-16 17:39:14,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [775] [2023-12-16 17:39:14,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [840] [2023-12-16 17:39:14,355 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_product37.cil.c[13023,13036] [2023-12-16 17:39:14,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:39:14,381 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:39:14,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14 WrapperNode [2023-12-16 17:39:14,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:39:14,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:39:14,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:39:14,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:39:14,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,420 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 175 [2023-12-16 17:39:14,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:39:14,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:39:14,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:39:14,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:39:14,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,442 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 17:39:14,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:39:14,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:39:14,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:39:14,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:39:14,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (1/1) ... [2023-12-16 17:39:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:39:14,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:39:14,501 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 17:39:14,517 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 17:39:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:39:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 17:39:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 17:39:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:39:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 17:39:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 17:39:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:39:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:39:14,591 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:39:14,593 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:39:14,916 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:39:14,988 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:39:14,990 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 17:39:14,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:39:14 BoogieIcfgContainer [2023-12-16 17:39:14,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:39:14,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:39:14,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:39:14,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:39:14,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:39:14" (1/3) ... [2023-12-16 17:39:14,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483aee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:39:14, skipping insertion in model container [2023-12-16 17:39:14,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:39:14" (2/3) ... [2023-12-16 17:39:14,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483aee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:39:14, skipping insertion in model container [2023-12-16 17:39:14,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:39:14" (3/3) ... [2023-12-16 17:39:14,997 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2023-12-16 17:39:15,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:39:15,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:39:15,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:39:15,057 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;@4ec9a1a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:39:15,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:39:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 54 states have internal predecessors, (71), 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 17:39:15,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-16 17:39:15,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:15,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:15,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:15,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:15,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1185916041, now seen corresponding path program 1 times [2023-12-16 17:39:15,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:15,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800587253] [2023-12-16 17:39:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:15,080 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 17:39:15,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:15,083 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 17:39:15,086 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 17:39:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:15,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:39:15,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:15,219 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 17:39:15,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:15,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800587253] [2023-12-16 17:39:15,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800587253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:15,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:15,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:15,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068464253] [2023-12-16 17:39:15,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:15,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:39:15,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:15,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:39:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:39:15,263 INFO L87 Difference]: Start difference. First operand has 67 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 54 states have internal predecessors, (71), 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 17:39:15,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:15,316 INFO L93 Difference]: Finished difference Result 132 states and 191 transitions. [2023-12-16 17:39:15,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:39:15,318 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 17:39:15,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:15,325 INFO L225 Difference]: With dead ends: 132 [2023-12-16 17:39:15,325 INFO L226 Difference]: Without dead ends: 62 [2023-12-16 17:39:15,329 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 17:39:15,332 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:15,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-16 17:39:15,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-16 17:39:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 50 states have internal predecessors, (61), 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 17:39:15,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 84 transitions. [2023-12-16 17:39:15,362 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 84 transitions. Word has length 16 [2023-12-16 17:39:15,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:15,362 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 84 transitions. [2023-12-16 17:39:15,362 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 17:39:15,362 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 84 transitions. [2023-12-16 17:39:15,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 17:39:15,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:15,364 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 17:39:15,367 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 (2)] Ended with exit code 0 [2023-12-16 17:39:15,566 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 17:39:15,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:15,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:15,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2022221322, now seen corresponding path program 1 times [2023-12-16 17:39:15,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:15,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1604806896] [2023-12-16 17:39:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:15,568 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 17:39:15,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:15,575 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 17:39:15,577 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 17:39:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:15,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:39:15,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:15,629 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 17:39:15,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:15,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:15,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1604806896] [2023-12-16 17:39:15,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1604806896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:15,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:15,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:39:15,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650331794] [2023-12-16 17:39:15,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:15,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:15,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:15,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:15,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:15,633 INFO L87 Difference]: Start difference. First operand 62 states and 84 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 17:39:15,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:15,656 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2023-12-16 17:39:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:15,656 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 17:39:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:15,657 INFO L225 Difference]: With dead ends: 97 [2023-12-16 17:39:15,657 INFO L226 Difference]: Without dead ends: 54 [2023-12-16 17:39:15,658 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 17:39:15,659 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 11 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:15,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 112 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-16 17:39:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-16 17:39:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 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 17:39:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2023-12-16 17:39:15,665 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 17 [2023-12-16 17:39:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:15,665 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2023-12-16 17:39:15,665 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 17:39:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-12-16 17:39:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-16 17:39:15,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:15,666 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 17:39:15,682 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 17:39:15,882 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 17:39:15,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:15,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1643095792, now seen corresponding path program 1 times [2023-12-16 17:39:15,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:15,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020370299] [2023-12-16 17:39:15,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:15,884 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 17:39:15,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:15,885 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 17:39:15,889 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 17:39:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:15,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:39:15,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:15,960 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 17:39:15,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:15,961 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020370299] [2023-12-16 17:39:15,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020370299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:15,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306535166] [2023-12-16 17:39:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:15,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:15,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:15,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:15,967 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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 17:39:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:16,003 INFO L93 Difference]: Finished difference Result 106 states and 145 transitions. [2023-12-16 17:39:16,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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 17:39:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:16,004 INFO L225 Difference]: With dead ends: 106 [2023-12-16 17:39:16,004 INFO L226 Difference]: Without dead ends: 54 [2023-12-16 17:39:16,005 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 17:39:16,006 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:16,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 61 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-12-16 17:39:16,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-12-16 17:39:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 45 states have internal predecessors, (54), 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 17:39:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2023-12-16 17:39:16,024 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 72 transitions. Word has length 20 [2023-12-16 17:39:16,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:16,024 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 72 transitions. [2023-12-16 17:39:16,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 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 17:39:16,024 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2023-12-16 17:39:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 17:39:16,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:16,025 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] [2023-12-16 17:39:16,042 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:16,227 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 17:39:16,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:16,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1080745679, now seen corresponding path program 1 times [2023-12-16 17:39:16,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:16,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803702654] [2023-12-16 17:39:16,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:16,229 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 17:39:16,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:16,328 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 17:39:16,331 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 17:39:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:16,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:16,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:16,394 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 17:39:16,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:16,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:16,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803702654] [2023-12-16 17:39:16,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803702654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:16,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:16,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958935959] [2023-12-16 17:39:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:16,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:16,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:16,396 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:39:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:16,432 INFO L93 Difference]: Finished difference Result 144 states and 195 transitions. [2023-12-16 17:39:16,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:16,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-12-16 17:39:16,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:16,434 INFO L225 Difference]: With dead ends: 144 [2023-12-16 17:39:16,434 INFO L226 Difference]: Without dead ends: 92 [2023-12-16 17:39:16,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 17:39:16,435 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:16,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 119 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-16 17:39:16,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2023-12-16 17:39:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.375) internal successors, (88), 71 states have internal predecessors, (88), 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 17:39:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2023-12-16 17:39:16,447 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 27 [2023-12-16 17:39:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:16,447 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2023-12-16 17:39:16,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-16 17:39:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2023-12-16 17:39:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 17:39:16,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:16,448 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] [2023-12-16 17:39:16,465 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 17:39:16,650 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 17:39:16,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:16,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:16,651 INFO L85 PathProgramCache]: Analyzing trace with hash -478490187, now seen corresponding path program 1 times [2023-12-16 17:39:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:16,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375339309] [2023-12-16 17:39:16,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:16,652 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 17:39:16,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:16,655 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 17:39:16,658 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 17:39:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:16,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:16,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:16,754 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 17:39:16,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:16,755 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375339309] [2023-12-16 17:39:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375339309] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:16,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:16,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:39:16,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259028566] [2023-12-16 17:39:16,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:16,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:39:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:16,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:39:16,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:16,762 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:16,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:16,814 INFO L93 Difference]: Finished difference Result 187 states and 256 transitions. [2023-12-16 17:39:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:39:16,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-12-16 17:39:16,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:16,817 INFO L225 Difference]: With dead ends: 187 [2023-12-16 17:39:16,817 INFO L226 Difference]: Without dead ends: 99 [2023-12-16 17:39:16,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 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 17:39:16,819 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:16,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 179 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-16 17:39:16,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2023-12-16 17:39:16,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 73 states have internal predecessors, (90), 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 17:39:16,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2023-12-16 17:39:16,829 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 120 transitions. Word has length 32 [2023-12-16 17:39:16,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:16,829 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 120 transitions. [2023-12-16 17:39:16,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:16,829 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2023-12-16 17:39:16,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 17:39:16,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:16,830 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] [2023-12-16 17:39:16,838 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 17:39:17,032 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 17:39:17,032 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:17,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:17,033 INFO L85 PathProgramCache]: Analyzing trace with hash 532627063, now seen corresponding path program 1 times [2023-12-16 17:39:17,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:17,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740176301] [2023-12-16 17:39:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:17,033 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 17:39:17,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:17,034 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 17:39:17,044 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 17:39:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:17,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:17,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:17,081 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 17:39:17,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:17,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:17,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740176301] [2023-12-16 17:39:17,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740176301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:17,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:17,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:39:17,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546821383] [2023-12-16 17:39:17,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:39:17,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:17,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:39:17,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:39:17,083 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:17,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:17,112 INFO L93 Difference]: Finished difference Result 184 states and 245 transitions. [2023-12-16 17:39:17,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:39:17,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-12-16 17:39:17,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:17,113 INFO L225 Difference]: With dead ends: 184 [2023-12-16 17:39:17,113 INFO L226 Difference]: Without dead ends: 94 [2023-12-16 17:39:17,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 17:39:17,114 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:17,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 186 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-16 17:39:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-16 17:39:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 68 states have (on average 1.3529411764705883) internal successors, (92), 75 states have internal predecessors, (92), 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 17:39:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2023-12-16 17:39:17,123 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 32 [2023-12-16 17:39:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:17,123 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2023-12-16 17:39:17,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2023-12-16 17:39:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-16 17:39:17,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:17,124 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] [2023-12-16 17:39:17,126 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:17,326 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 17:39:17,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:17,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1499558541, now seen corresponding path program 1 times [2023-12-16 17:39:17,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:17,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851581007] [2023-12-16 17:39:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:17,327 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 17:39:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:17,328 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 17:39:17,329 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 17:39:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:17,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:39:17,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:17,381 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 17:39:17,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:17,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:17,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851581007] [2023-12-16 17:39:17,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851581007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:17,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:17,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:39:17,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367234864] [2023-12-16 17:39:17,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:17,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:39:17,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:17,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:39:17,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:39:17,382 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:17,410 INFO L93 Difference]: Finished difference Result 229 states and 299 transitions. [2023-12-16 17:39:17,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:39:17,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-12-16 17:39:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:17,412 INFO L225 Difference]: With dead ends: 229 [2023-12-16 17:39:17,412 INFO L226 Difference]: Without dead ends: 137 [2023-12-16 17:39:17,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 17:39:17,412 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 34 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:17,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 116 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:39:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-16 17:39:17,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2023-12-16 17:39:17,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 98 states have (on average 1.316326530612245) internal successors, (129), 106 states have internal predecessors, (129), 19 states have call successors, (19), 18 states have call predecessors, (19), 17 states have return successors, (23), 18 states have call predecessors, (23), 19 states have call successors, (23) [2023-12-16 17:39:17,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2023-12-16 17:39:17,423 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 32 [2023-12-16 17:39:17,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:17,423 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2023-12-16 17:39:17,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 17:39:17,423 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2023-12-16 17:39:17,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-16 17:39:17,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:17,424 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 17:39:17,446 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 17:39:17,626 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 17:39:17,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:17,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:17,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1391766551, now seen corresponding path program 1 times [2023-12-16 17:39:17,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:17,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31037048] [2023-12-16 17:39:17,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:17,627 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 17:39:17,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:17,628 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 17:39:17,632 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 17:39:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:17,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:39:17,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:17,712 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 17:39:17,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:17,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:17,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31037048] [2023-12-16 17:39:17,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31037048] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:17,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:17,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:39:17,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216118584] [2023-12-16 17:39:17,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:17,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:39:17,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:17,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:39:17,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:39:17,713 INFO L87 Difference]: Start difference. First operand 135 states and 171 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 17:39:17,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:17,811 INFO L93 Difference]: Finished difference Result 399 states and 516 transitions. [2023-12-16 17:39:17,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:39:17,812 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 17:39:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:17,813 INFO L225 Difference]: With dead ends: 399 [2023-12-16 17:39:17,813 INFO L226 Difference]: Without dead ends: 266 [2023-12-16 17:39:17,814 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 17:39:17,814 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 35 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:17,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 278 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:17,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-16 17:39:17,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 263. [2023-12-16 17:39:17,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 190 states have (on average 1.2789473684210526) internal successors, (243), 205 states have internal predecessors, (243), 38 states have call successors, (38), 36 states have call predecessors, (38), 34 states have return successors, (49), 36 states have call predecessors, (49), 38 states have call successors, (49) [2023-12-16 17:39:17,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 330 transitions. [2023-12-16 17:39:17,833 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 330 transitions. Word has length 35 [2023-12-16 17:39:17,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:17,833 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 330 transitions. [2023-12-16 17:39:17,833 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 17:39:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 330 transitions. [2023-12-16 17:39:17,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 17:39:17,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:17,835 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 17:39:17,852 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 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:39:18,053 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 17:39:18,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:18,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:18,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2016259507, now seen corresponding path program 1 times [2023-12-16 17:39:18,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:18,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1219649546] [2023-12-16 17:39:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:18,054 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 17:39:18,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:18,055 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 17:39:18,081 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 17:39:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:39:18,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:39:18,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:39:18,141 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 17:39:18,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:39:18,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:39:18,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1219649546] [2023-12-16 17:39:18,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1219649546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:39:18,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:39:18,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:39:18,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616440629] [2023-12-16 17:39:18,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:39:18,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:39:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:39:18,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:39:18,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:39:18,143 INFO L87 Difference]: Start difference. First operand 263 states and 330 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 17:39:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:39:18,286 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2023-12-16 17:39:18,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:39:18,286 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 17:39:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:39:18,288 INFO L225 Difference]: With dead ends: 306 [2023-12-16 17:39:18,288 INFO L226 Difference]: Without dead ends: 304 [2023-12-16 17:39:18,288 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 17:39:18,289 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 78 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:39:18,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 141 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:39:18,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-16 17:39:18,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 297. [2023-12-16 17:39:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 214 states have (on average 1.2523364485981308) internal successors, (268), 229 states have internal predecessors, (268), 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 17:39:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 369 transitions. [2023-12-16 17:39:18,307 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 369 transitions. Word has length 39 [2023-12-16 17:39:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:39:18,307 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 369 transitions. [2023-12-16 17:39:18,307 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 17:39:18,307 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 369 transitions. [2023-12-16 17:39:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-16 17:39:18,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:39:18,308 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, 1] [2023-12-16 17:39:18,324 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 (10)] Ended with exit code 0 [2023-12-16 17:39:18,511 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 17:39:18,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:39:18,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:39:18,512 INFO L85 PathProgramCache]: Analyzing trace with hash 74574333, now seen corresponding path program 1 times [2023-12-16 17:39:18,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:39:18,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251385709] [2023-12-16 17:39:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:39:18,513 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 17:39:18,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:39:18,515 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 17:39:18,522 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 17:39:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:39:18,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-16 17:39:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-16 17:39:18,593 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-12-16 17:39:18,593 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-16 17:39:18,594 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:39:18,600 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 17:39:18,797 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 17:39:18,799 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:39:18,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:39:18,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:39:18 BoogieIcfgContainer [2023-12-16 17:39:18,837 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:39:18,837 INFO L158 Benchmark]: Toolchain (without parser) took 4833.52ms. Allocated memory was 188.7MB in the beginning and 277.9MB in the end (delta: 89.1MB). Free memory was 137.3MB in the beginning and 165.4MB in the end (delta: -28.1MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,837 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:39:18,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.58ms. Allocated memory is still 188.7MB. Free memory was 137.0MB in the beginning and 111.5MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.16ms. Allocated memory is still 188.7MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,838 INFO L158 Benchmark]: Boogie Preprocessor took 45.20ms. Allocated memory is still 188.7MB. Free memory was 109.4MB in the beginning and 106.9MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,838 INFO L158 Benchmark]: RCFGBuilder took 523.40ms. Allocated memory was 188.7MB in the beginning and 277.9MB in the end (delta: 89.1MB). Free memory was 106.9MB in the beginning and 228.8MB in the end (delta: -121.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,838 INFO L158 Benchmark]: TraceAbstraction took 3844.79ms. Allocated memory is still 277.9MB. Free memory was 227.8MB in the beginning and 165.4MB in the end (delta: 62.4MB). Peak memory consumption was 62.4MB. Max. memory is 8.0GB. [2023-12-16 17:39:18,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 188.7MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 378.58ms. Allocated memory is still 188.7MB. Free memory was 137.0MB in the beginning and 111.5MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.16ms. Allocated memory is still 188.7MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.20ms. Allocated memory is still 188.7MB. Free memory was 109.4MB in the beginning and 106.9MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 523.40ms. Allocated memory was 188.7MB in the beginning and 277.9MB in the end (delta: 89.1MB). Free memory was 106.9MB in the beginning and 228.8MB in the end (delta: -121.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3844.79ms. Allocated memory is still 277.9MB. Free memory was 227.8MB in the beginning and 165.4MB in the end (delta: 62.4MB). Peak memory consumption was 62.4MB. 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [519] - GenericResultAtLocation [Line: 548]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [548] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [557] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [592] - GenericResultAtLocation [Line: 775]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [775] - GenericResultAtLocation [Line: 840]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [840] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 553]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L842] int waterLevel = 1; [L843] int methaneLevelCritical = 0; [L497] int retValue_acc ; [L498] int tmp ; [L502] FCALL select_helpers() [L503] FCALL select_features() [L504] CALL, EXPR valid_product() [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); [L504] RET, EXPR valid_product() [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) [L508] FCALL setup() [L509] CALL runTest() [L488] CALL test() [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L786] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L788] COND TRUE splverifierCounter < 4 [L794] tmp = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, waterLevel=1] [L798] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] COND TRUE waterLevel < 2 [L861] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L798] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, waterLevel=2] [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=2, waterLevel=2] [L808] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L872] COND FALSE !(\read(methaneLevelCritical)) [L875] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L808] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=2, waterLevel=2] [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2, tmp___0=2, tmp___2=2, waterLevel=2] [L829] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L614] CALL processEnvironment() [L660] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L678] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L637] COND TRUE ! pumpRunning [L639] CALL, EXPR isHighWaterLevel() [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L763] CALL, EXPR isHighWaterSensorDry() [L922] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L925] COND FALSE !(waterLevel < 2) [L929] retValue_acc = 0 [L930] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L763] RET, EXPR isHighWaterSensorDry() [L763] tmp = isHighWaterSensorDry() [L765] COND FALSE !(\read(tmp)) [L768] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); [L639] RET, EXPR isHighWaterLevel() [L639] tmp = isHighWaterLevel() [L641] COND TRUE \read(tmp) [L643] CALL activatePump() [L688] pumpRunning = 1 [L643] RET activatePump() [L678] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L614] RET processEnvironment() [L620] CALL __utac_acc__Specification1_spec__1() [L524] int tmp ; [L525] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L529] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L881] int retValue_acc ; [L884] retValue_acc = methaneLevelCritical [L885] return (retValue_acc); [L529] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L529] tmp = isMethaneLevelCritical() [L531] COND TRUE \read(tmp) [L533] CALL, EXPR isPumpRunning() [L712] int retValue_acc ; [L715] retValue_acc = pumpRunning [L716] return (retValue_acc); [L533] RET, EXPR isPumpRunning() [L533] tmp___0 = isPumpRunning() [L535] COND TRUE \read(tmp___0) [L537] CALL __automaton_fail() [L553] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 1269 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 709 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 560 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=9, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 21 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 10 NumberOfNonLiveVariables, 789 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-16 17:39:18,851 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...