/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/elevator_spec14_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:19:32,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:19:32,881 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 17:19:32,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:19:32,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:19:32,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:19:32,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:19:32,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:19:32,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:19:32,899 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:19:32,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:19:32,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:19:32,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:19:32,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:19:32,901 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:19:32,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:19:32,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:19:32,901 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:19:32,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:19:32,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:19:32,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:19:32,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:19:32,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:19:32,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:19:32,903 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:19:32,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:19:32,904 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:19:32,904 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:19:32,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:19:32,905 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:19:32,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:19:32,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:19:32,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:19:32,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:19:32,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:19:32,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:19:32,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:19:32,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:19:32,907 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:19:32,907 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:19:32,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:19:32,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:19:32,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:19:32,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:19:32,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:19:32,908 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:19:32,908 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:19:33,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:19:33,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:19:33,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:19:33,062 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:19:33,062 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:19:33,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2023-12-16 17:19:34,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:19:34,397 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:19:34,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2023-12-16 17:19:34,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ed7119b/8d4f377601554957845147de3389c5ee/FLAG8c8d9bf31 [2023-12-16 17:19:34,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ed7119b/8d4f377601554957845147de3389c5ee [2023-12-16 17:19:34,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:19:34,435 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:19:34,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:19:34,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:19:34,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:19:34,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:19:34" (1/1) ... [2023-12-16 17:19:34,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1701e5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:34, skipping insertion in model container [2023-12-16 17:19:34,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:19:34" (1/1) ... [2023-12-16 17:19:34,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:19:35,018 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/elevator_spec14_product31.cil.c[71150,71163] [2023-12-16 17:19:35,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:35,046 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:19:35,062 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:19:35,143 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/elevator_spec14_product31.cil.c[71150,71163] [2023-12-16 17:19:35,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:35,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:19:35,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-16 17:19:35,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [716] [2023-12-16 17:19:35,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1082] [2023-12-16 17:19:35,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1183] [2023-12-16 17:19:35,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1221] [2023-12-16 17:19:35,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1341] [2023-12-16 17:19:35,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2956] [2023-12-16 17:19:35,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3305] [2023-12-16 17:19:35,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3342] [2023-12-16 17:19:35,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3351] [2023-12-16 17:19:35,251 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/elevator_spec14_product31.cil.c[71150,71163] [2023-12-16 17:19:35,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:19:35,280 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:19:35,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35 WrapperNode [2023-12-16 17:19:35,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:19:35,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:19:35,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:19:35,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:19:35,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,395 INFO L138 Inliner]: procedures = 96, calls = 342, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 842 [2023-12-16 17:19:35,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:19:35,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:19:35,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:19:35,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:19:35,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,469 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-16 17:19:35,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,523 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:19:35,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:19:35,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:19:35,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:19:35,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (1/1) ... [2023-12-16 17:19:35,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:19:35,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:19:35,586 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 17:19:35,648 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 17:19:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:19:35,668 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:19:35,668 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-16 17:19:35,669 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-16 17:19:35,669 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-16 17:19:35,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-16 17:19:35,670 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-16 17:19:35,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-16 17:19:35,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-16 17:19:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-16 17:19:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-16 17:19:35,672 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-16 17:19:35,672 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-16 17:19:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-16 17:19:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-16 17:19:35,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-16 17:19:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-16 17:19:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-16 17:19:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-16 17:19:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-16 17:19:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-16 17:19:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-16 17:19:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-16 17:19:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-16 17:19:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-16 17:19:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-16 17:19:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:19:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:19:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-16 17:19:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-16 17:19:35,884 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:19:35,886 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:19:36,794 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:19:36,916 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:19:36,917 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:19:36,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:19:36 BoogieIcfgContainer [2023-12-16 17:19:36,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:19:36,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:19:36,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:19:36,921 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:19:36,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:19:34" (1/3) ... [2023-12-16 17:19:36,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669a5f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:19:36, skipping insertion in model container [2023-12-16 17:19:36,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:19:35" (2/3) ... [2023-12-16 17:19:36,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669a5f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:19:36, skipping insertion in model container [2023-12-16 17:19:36,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:19:36" (3/3) ... [2023-12-16 17:19:36,924 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product31.cil.c [2023-12-16 17:19:36,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:19:36,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:19:36,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:19:36,997 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;@5c3d1611, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:19:36,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:19:37,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 546 states, 420 states have (on average 1.7023809523809523) internal successors, (715), 436 states have internal predecessors, (715), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-16 17:19:37,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 17:19:37,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:37,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:37,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:37,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:37,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1945756511, now seen corresponding path program 1 times [2023-12-16 17:19:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:37,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792474534] [2023-12-16 17:19:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:37,044 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 17:19:37,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:37,047 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 17:19:37,076 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 17:19:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:37,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:37,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:37,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:37,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:37,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792474534] [2023-12-16 17:19:37,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792474534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:37,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:37,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:37,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607143367] [2023-12-16 17:19:37,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:37,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:37,508 INFO L87 Difference]: Start difference. First operand has 546 states, 420 states have (on average 1.7023809523809523) internal successors, (715), 436 states have internal predecessors, (715), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:37,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:37,772 INFO L93 Difference]: Finished difference Result 1091 states and 1832 transitions. [2023-12-16 17:19:37,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:37,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-12-16 17:19:37,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:37,799 INFO L225 Difference]: With dead ends: 1091 [2023-12-16 17:19:37,800 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:37,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 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 17:19:37,815 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 15 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:37,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2630 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:37,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-16 17:19:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6857142857142857) internal successors, (708), 435 states have internal predecessors, (708), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 905 transitions. [2023-12-16 17:19:37,915 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 905 transitions. Word has length 89 [2023-12-16 17:19:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:37,915 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 905 transitions. [2023-12-16 17:19:37,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 905 transitions. [2023-12-16 17:19:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 17:19:37,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:37,922 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:37,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:38,136 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 17:19:38,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:38,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:38,137 INFO L85 PathProgramCache]: Analyzing trace with hash 293079729, now seen corresponding path program 1 times [2023-12-16 17:19:38,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:38,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630539416] [2023-12-16 17:19:38,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:38,139 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 17:19:38,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:38,144 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 17:19:38,146 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 17:19:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:38,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:38,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:38,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:38,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:38,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630539416] [2023-12-16 17:19:38,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630539416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:38,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:38,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:38,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259000208] [2023-12-16 17:19:38,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:38,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:38,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:38,466 INFO L87 Difference]: Start difference. First operand 545 states and 905 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:38,642 INFO L93 Difference]: Finished difference Result 1078 states and 1792 transitions. [2023-12-16 17:19:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:38,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-16 17:19:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:38,646 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:38,646 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:38,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 17:19:38,649 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 12 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:38,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2613 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:38,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:38,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-16 17:19:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6833333333333333) internal successors, (707), 435 states have internal predecessors, (707), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:38,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 904 transitions. [2023-12-16 17:19:38,671 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 904 transitions. Word has length 90 [2023-12-16 17:19:38,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:38,671 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 904 transitions. [2023-12-16 17:19:38,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 904 transitions. [2023-12-16 17:19:38,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:19:38,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:38,675 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:38,682 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 17:19:38,880 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 17:19:38,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:38,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1045547869, now seen corresponding path program 1 times [2023-12-16 17:19:38,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:38,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490603456] [2023-12-16 17:19:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:38,882 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 17:19:38,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:38,883 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 17:19:38,913 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 17:19:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:39,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:39,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:39,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:39,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:39,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490603456] [2023-12-16 17:19:39,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490603456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:39,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:39,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:39,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545890106] [2023-12-16 17:19:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:39,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:39,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:39,179 INFO L87 Difference]: Start difference. First operand 545 states and 904 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:39,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:39,293 INFO L93 Difference]: Finished difference Result 1078 states and 1791 transitions. [2023-12-16 17:19:39,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-16 17:19:39,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:39,296 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:39,296 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:39,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 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 17:19:39,298 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 10 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:39,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2613 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:39,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:39,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-16 17:19:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.680952380952381) internal successors, (706), 435 states have internal predecessors, (706), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 903 transitions. [2023-12-16 17:19:39,314 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 903 transitions. Word has length 91 [2023-12-16 17:19:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:39,314 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 903 transitions. [2023-12-16 17:19:39,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 903 transitions. [2023-12-16 17:19:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 17:19:39,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:39,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:39,323 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 17:19:39,522 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 17:19:39,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:39,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:39,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1238585355, now seen corresponding path program 1 times [2023-12-16 17:19:39,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:39,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100320153] [2023-12-16 17:19:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:39,524 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 17:19:39,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:39,525 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 17:19:39,527 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 17:19:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:39,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:39,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:39,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:39,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:39,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100320153] [2023-12-16 17:19:39,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1100320153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:39,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:39,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:39,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929361816] [2023-12-16 17:19:39,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:39,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:39,757 INFO L87 Difference]: Start difference. First operand 545 states and 903 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:39,878 INFO L93 Difference]: Finished difference Result 1078 states and 1790 transitions. [2023-12-16 17:19:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:39,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-16 17:19:39,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:39,881 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:39,881 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:39,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 17:19:39,897 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 8 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:39,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2613 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-16 17:19:39,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6785714285714286) internal successors, (705), 435 states have internal predecessors, (705), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 902 transitions. [2023-12-16 17:19:39,934 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 902 transitions. Word has length 92 [2023-12-16 17:19:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:39,935 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 902 transitions. [2023-12-16 17:19:39,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 902 transitions. [2023-12-16 17:19:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 17:19:39,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:39,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:39,961 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 17:19:40,145 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 17:19:40,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:40,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -278067737, now seen corresponding path program 1 times [2023-12-16 17:19:40,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:40,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183378527] [2023-12-16 17:19:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:40,147 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 17:19:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:40,152 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 17:19:40,156 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 17:19:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:40,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:40,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:40,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:40,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:40,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183378527] [2023-12-16 17:19:40,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183378527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:40,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:40,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:40,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083701897] [2023-12-16 17:19:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:40,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:40,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:40,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:40,419 INFO L87 Difference]: Start difference. First operand 545 states and 902 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:40,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:40,513 INFO L93 Difference]: Finished difference Result 1078 states and 1789 transitions. [2023-12-16 17:19:40,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:40,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-16 17:19:40,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:40,516 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:40,516 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 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 17:19:40,520 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 6 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:40,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2613 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:40,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-12-16 17:19:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6761904761904762) internal successors, (704), 435 states have internal predecessors, (704), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 901 transitions. [2023-12-16 17:19:40,538 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 901 transitions. Word has length 93 [2023-12-16 17:19:40,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:40,538 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 901 transitions. [2023-12-16 17:19:40,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 901 transitions. [2023-12-16 17:19:40,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:19:40,541 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:40,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:40,561 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:40,749 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 17:19:40,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:40,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:40,750 INFO L85 PathProgramCache]: Analyzing trace with hash 2082919737, now seen corresponding path program 1 times [2023-12-16 17:19:40,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:40,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [184947205] [2023-12-16 17:19:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:40,750 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 17:19:40,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:40,770 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 17:19:40,796 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 17:19:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:41,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:19:41,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:41,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:41,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [184947205] [2023-12-16 17:19:41,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [184947205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:41,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:41,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:41,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195778304] [2023-12-16 17:19:41,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:41,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:19:41,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:41,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:19:41,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:19:41,125 INFO L87 Difference]: Start difference. First operand 545 states and 901 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:41,301 INFO L93 Difference]: Finished difference Result 1088 states and 1805 transitions. [2023-12-16 17:19:41,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:19:41,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-16 17:19:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:41,304 INFO L225 Difference]: With dead ends: 1088 [2023-12-16 17:19:41,304 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 17:19:41,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:41,307 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 115 mSDsluCounter, 4266 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:41,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5138 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 17:19:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 557. [2023-12-16 17:19:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 429 states have (on average 1.6736596736596736) internal successors, (718), 446 states have internal predecessors, (718), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (102), 97 states have call predecessors, (102), 99 states have call successors, (102) [2023-12-16 17:19:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 920 transitions. [2023-12-16 17:19:41,324 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 920 transitions. Word has length 94 [2023-12-16 17:19:41,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:41,324 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 920 transitions. [2023-12-16 17:19:41,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 920 transitions. [2023-12-16 17:19:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 17:19:41,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:41,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:41,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-16 17:19:41,533 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 17:19:41,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:41,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash 597864186, now seen corresponding path program 1 times [2023-12-16 17:19:41,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:41,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854647496] [2023-12-16 17:19:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:41,534 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 17:19:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:41,535 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 17:19:41,568 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 17:19:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:41,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:41,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:41,766 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:41,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:41,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:41,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854647496] [2023-12-16 17:19:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854647496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:41,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:41,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:41,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557110909] [2023-12-16 17:19:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:41,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:41,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:41,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:41,767 INFO L87 Difference]: Start difference. First operand 557 states and 920 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:41,875 INFO L93 Difference]: Finished difference Result 1094 states and 1815 transitions. [2023-12-16 17:19:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:41,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-16 17:19:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:41,878 INFO L225 Difference]: With dead ends: 1094 [2023-12-16 17:19:41,878 INFO L226 Difference]: Without dead ends: 553 [2023-12-16 17:19:41,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 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 17:19:41,881 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 6 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:41,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2612 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-12-16 17:19:41,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2023-12-16 17:19:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 427 states have (on average 1.674473067915691) internal successors, (715), 443 states have internal predecessors, (715), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2023-12-16 17:19:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 913 transitions. [2023-12-16 17:19:41,894 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 913 transitions. Word has length 94 [2023-12-16 17:19:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:41,894 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 913 transitions. [2023-12-16 17:19:41,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 913 transitions. [2023-12-16 17:19:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 17:19:41,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:41,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:41,905 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:42,103 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 17:19:42,103 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:42,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:42,103 INFO L85 PathProgramCache]: Analyzing trace with hash 162203787, now seen corresponding path program 1 times [2023-12-16 17:19:42,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:42,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914319409] [2023-12-16 17:19:42,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:42,104 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 17:19:42,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:42,105 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 17:19:42,138 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 17:19:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:42,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:42,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:42,340 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:42,340 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:42,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:42,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914319409] [2023-12-16 17:19:42,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914319409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:42,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:42,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:42,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270550075] [2023-12-16 17:19:42,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:42,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:42,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:42,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:42,342 INFO L87 Difference]: Start difference. First operand 553 states and 913 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:42,512 INFO L93 Difference]: Finished difference Result 1117 states and 1857 transitions. [2023-12-16 17:19:42,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:42,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-16 17:19:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:42,516 INFO L225 Difference]: With dead ends: 1117 [2023-12-16 17:19:42,516 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 17:19:42,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 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 17:19:42,520 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 112 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:42,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2443 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:42,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 17:19:42,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 558. [2023-12-16 17:19:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.662037037037037) internal successors, (718), 447 states have internal predecessors, (718), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 915 transitions. [2023-12-16 17:19:42,535 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 915 transitions. Word has length 95 [2023-12-16 17:19:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:42,535 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 915 transitions. [2023-12-16 17:19:42,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 915 transitions. [2023-12-16 17:19:42,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 17:19:42,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:42,540 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:42,548 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 17:19:42,746 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 17:19:42,746 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:42,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:42,747 INFO L85 PathProgramCache]: Analyzing trace with hash 619989814, now seen corresponding path program 1 times [2023-12-16 17:19:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:42,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767967628] [2023-12-16 17:19:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:42,747 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 17:19:42,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:42,749 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 17:19:42,783 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 17:19:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:42,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:42,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:42,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:42,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:42,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767967628] [2023-12-16 17:19:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767967628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:42,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:42,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:42,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385496935] [2023-12-16 17:19:42,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:42,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:42,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:43,000 INFO L87 Difference]: Start difference. First operand 558 states and 915 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:43,141 INFO L93 Difference]: Finished difference Result 1070 states and 1755 transitions. [2023-12-16 17:19:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:43,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-16 17:19:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:43,144 INFO L225 Difference]: With dead ends: 1070 [2023-12-16 17:19:43,144 INFO L226 Difference]: Without dead ends: 558 [2023-12-16 17:19:43,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 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 17:19:43,147 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 77 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:43,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2444 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-16 17:19:43,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-16 17:19:43,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.6527777777777777) internal successors, (714), 447 states have internal predecessors, (714), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:43,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 911 transitions. [2023-12-16 17:19:43,159 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 911 transitions. Word has length 96 [2023-12-16 17:19:43,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:43,159 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 911 transitions. [2023-12-16 17:19:43,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 911 transitions. [2023-12-16 17:19:43,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:19:43,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:43,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:43,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:43,367 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 17:19:43,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:43,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:43,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1119403834, now seen corresponding path program 1 times [2023-12-16 17:19:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533087536] [2023-12-16 17:19:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:43,371 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 17:19:43,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:43,372 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 17:19:43,409 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 17:19:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:43,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:43,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:43,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:43,595 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533087536] [2023-12-16 17:19:43,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533087536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:43,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:43,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:43,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316219532] [2023-12-16 17:19:43,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:43,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:43,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:43,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:43,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:43,596 INFO L87 Difference]: Start difference. First operand 558 states and 911 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:43,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:43,721 INFO L93 Difference]: Finished difference Result 1070 states and 1751 transitions. [2023-12-16 17:19:43,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:43,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-16 17:19:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:43,724 INFO L225 Difference]: With dead ends: 1070 [2023-12-16 17:19:43,724 INFO L226 Difference]: Without dead ends: 558 [2023-12-16 17:19:43,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 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 17:19:43,726 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 72 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:43,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2444 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:43,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-16 17:19:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 558. [2023-12-16 17:19:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 432 states have (on average 1.6435185185185186) internal successors, (710), 447 states have internal predecessors, (710), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 907 transitions. [2023-12-16 17:19:43,739 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 907 transitions. Word has length 97 [2023-12-16 17:19:43,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:43,739 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 907 transitions. [2023-12-16 17:19:43,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:43,739 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 907 transitions. [2023-12-16 17:19:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 17:19:43,741 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:43,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:43,758 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 17:19:43,947 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 17:19:43,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:43,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1108898886, now seen corresponding path program 1 times [2023-12-16 17:19:43,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:43,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343612868] [2023-12-16 17:19:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:43,948 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 17:19:43,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:43,949 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:43,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:19:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:44,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:19:44,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:44,213 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:44,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:44,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:44,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343612868] [2023-12-16 17:19:44,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343612868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:44,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:44,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:44,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106517186] [2023-12-16 17:19:44,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:44,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:19:44,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:44,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:19:44,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:19:44,215 INFO L87 Difference]: Start difference. First operand 558 states and 907 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:44,391 INFO L93 Difference]: Finished difference Result 1078 states and 1760 transitions. [2023-12-16 17:19:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 17:19:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-16 17:19:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:44,394 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:44,394 INFO L226 Difference]: Without dead ends: 545 [2023-12-16 17:19:44,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:44,397 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 106 mSDsluCounter, 4186 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:44,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 5046 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:44,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-16 17:19:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 537. [2023-12-16 17:19:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 411 states have (on average 1.637469586374696) internal successors, (673), 426 states have internal predecessors, (673), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 870 transitions. [2023-12-16 17:19:44,409 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 870 transitions. Word has length 97 [2023-12-16 17:19:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:44,410 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 870 transitions. [2023-12-16 17:19:44,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 870 transitions. [2023-12-16 17:19:44,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 17:19:44,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:44,413 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:44,421 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 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:44,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:44,619 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:44,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash 2043076625, now seen corresponding path program 1 times [2023-12-16 17:19:44,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:44,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375517030] [2023-12-16 17:19:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:44,620 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 17:19:44,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:44,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:19:44,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:19:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:44,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:44,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:44,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:44,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:44,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:44,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375517030] [2023-12-16 17:19:44,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375517030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:44,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:44,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:44,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091287115] [2023-12-16 17:19:44,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:44,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:44,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:44,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:44,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:44,850 INFO L87 Difference]: Start difference. First operand 537 states and 870 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:44,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:44,940 INFO L93 Difference]: Finished difference Result 1049 states and 1710 transitions. [2023-12-16 17:19:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:44,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-16 17:19:44,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:44,943 INFO L225 Difference]: With dead ends: 1049 [2023-12-16 17:19:44,943 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 17:19:44,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 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 17:19:44,945 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 40 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:44,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2444 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:44,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 17:19:44,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-16 17:19:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 411 states have (on average 1.635036496350365) internal successors, (672), 426 states have internal predecessors, (672), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:44,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 869 transitions. [2023-12-16 17:19:44,956 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 869 transitions. Word has length 98 [2023-12-16 17:19:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:44,956 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 869 transitions. [2023-12-16 17:19:44,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 869 transitions. [2023-12-16 17:19:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 17:19:44,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:44,958 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:44,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:45,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:19:45,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:45,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1750135551, now seen corresponding path program 1 times [2023-12-16 17:19:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935537091] [2023-12-16 17:19:45,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:45,165 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 17:19:45,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:45,166 INFO L229 MonitoredProcess]: Starting monitored process 14 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 17:19:45,200 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 (14)] Waiting until timeout for monitored process [2023-12-16 17:19:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:45,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:45,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:45,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:45,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:45,389 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:45,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935537091] [2023-12-16 17:19:45,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935537091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:45,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:45,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:45,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277263623] [2023-12-16 17:19:45,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:45,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:45,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:45,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:45,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:45,390 INFO L87 Difference]: Start difference. First operand 537 states and 869 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:45,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:45,486 INFO L93 Difference]: Finished difference Result 1049 states and 1709 transitions. [2023-12-16 17:19:45,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:19:45,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-16 17:19:45,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:45,489 INFO L225 Difference]: With dead ends: 1049 [2023-12-16 17:19:45,489 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 17:19:45,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 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 17:19:45,492 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 38 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:45,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2444 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:45,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 17:19:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-16 17:19:45,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 411 states have (on average 1.632603406326034) internal successors, (671), 426 states have internal predecessors, (671), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 868 transitions. [2023-12-16 17:19:45,503 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 868 transitions. Word has length 99 [2023-12-16 17:19:45,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:45,503 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 868 transitions. [2023-12-16 17:19:45,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:45,503 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 868 transitions. [2023-12-16 17:19:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:19:45,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:45,505 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:45,513 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 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:45,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /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 17:19:45,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:45,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash 91143082, now seen corresponding path program 1 times [2023-12-16 17:19:45,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:45,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053054031] [2023-12-16 17:19:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:45,713 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 17:19:45,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:45,713 INFO L229 MonitoredProcess]: Starting monitored process 15 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 17:19:45,761 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 (15)] Waiting until timeout for monitored process [2023-12-16 17:19:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:45,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:19:45,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:45,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:45,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053054031] [2023-12-16 17:19:45,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053054031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:45,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:45,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775449462] [2023-12-16 17:19:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:45,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:19:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:19:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:19:45,957 INFO L87 Difference]: Start difference. First operand 537 states and 868 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:46,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:46,043 INFO L93 Difference]: Finished difference Result 1049 states and 1708 transitions. [2023-12-16 17:19:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:19:46,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 100 [2023-12-16 17:19:46,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:46,046 INFO L225 Difference]: With dead ends: 1049 [2023-12-16 17:19:46,046 INFO L226 Difference]: Without dead ends: 537 [2023-12-16 17:19:46,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 17:19:46,048 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 63 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:46,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2427 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:19:46,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-16 17:19:46,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-16 17:19:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 411 states have (on average 1.6301703163017032) internal successors, (670), 426 states have internal predecessors, (670), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 867 transitions. [2023-12-16 17:19:46,081 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 867 transitions. Word has length 100 [2023-12-16 17:19:46,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:46,081 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 867 transitions. [2023-12-16 17:19:46,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 17:19:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 867 transitions. [2023-12-16 17:19:46,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 17:19:46,083 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:46,083 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:46,091 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 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:46,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /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 17:19:46,289 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:46,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:46,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2126487316, now seen corresponding path program 1 times [2023-12-16 17:19:46,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:46,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370491538] [2023-12-16 17:19:46,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:46,290 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 17:19:46,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:46,292 INFO L229 MonitoredProcess]: Starting monitored process 16 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 17:19:46,324 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 (16)] Waiting until timeout for monitored process [2023-12-16 17:19:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:46,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:46,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 17:19:46,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:46,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:46,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370491538] [2023-12-16 17:19:46,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370491538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:46,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:46,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:46,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922106706] [2023-12-16 17:19:46,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:46,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:46,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:46,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:46,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:46,571 INFO L87 Difference]: Start difference. First operand 537 states and 867 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:46,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:46,774 INFO L93 Difference]: Finished difference Result 1047 states and 1703 transitions. [2023-12-16 17:19:46,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:19:46,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-12-16 17:19:46,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:46,777 INFO L225 Difference]: With dead ends: 1047 [2023-12-16 17:19:46,777 INFO L226 Difference]: Without dead ends: 541 [2023-12-16 17:19:46,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:46,780 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 39 mSDsluCounter, 4833 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 5643 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:46,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 5643 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:19:46,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-16 17:19:46,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 539. [2023-12-16 17:19:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.6246973365617434) internal successors, (671), 428 states have internal predecessors, (671), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 17:19:46,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 868 transitions. [2023-12-16 17:19:46,792 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 868 transitions. Word has length 100 [2023-12-16 17:19:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:46,793 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 868 transitions. [2023-12-16 17:19:46,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 868 transitions. [2023-12-16 17:19:46,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 17:19:46,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:46,795 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:46,817 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 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:47,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /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 17:19:47,001 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:47,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:47,002 INFO L85 PathProgramCache]: Analyzing trace with hash -12475796, now seen corresponding path program 1 times [2023-12-16 17:19:47,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:47,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441594094] [2023-12-16 17:19:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:47,002 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 17:19:47,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:47,003 INFO L229 MonitoredProcess]: Starting monitored process 17 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 17:19:47,008 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 (17)] Waiting until timeout for monitored process [2023-12-16 17:19:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:47,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:47,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:19:47,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:47,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:47,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441594094] [2023-12-16 17:19:47,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441594094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263471521] [2023-12-16 17:19:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:47,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:47,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:47,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:47,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:47,281 INFO L87 Difference]: Start difference. First operand 539 states and 868 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:47,848 INFO L93 Difference]: Finished difference Result 1045 states and 1726 transitions. [2023-12-16 17:19:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-16 17:19:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:47,851 INFO L225 Difference]: With dead ends: 1045 [2023-12-16 17:19:47,851 INFO L226 Difference]: Without dead ends: 543 [2023-12-16 17:19:47,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:47,854 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 804 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:47,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 2046 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:19:47,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-12-16 17:19:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2023-12-16 17:19:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 416 states have (on average 1.6201923076923077) internal successors, (674), 431 states have internal predecessors, (674), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2023-12-16 17:19:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 872 transitions. [2023-12-16 17:19:47,868 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 872 transitions. Word has length 101 [2023-12-16 17:19:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:47,868 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 872 transitions. [2023-12-16 17:19:47,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 872 transitions. [2023-12-16 17:19:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 17:19:47,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:47,870 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:47,905 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 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:48,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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 17:19:48,074 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:48,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:48,074 INFO L85 PathProgramCache]: Analyzing trace with hash 448637066, now seen corresponding path program 1 times [2023-12-16 17:19:48,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:48,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420602068] [2023-12-16 17:19:48,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:48,075 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 17:19:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:48,077 INFO L229 MonitoredProcess]: Starting monitored process 18 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 17:19:48,111 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 (18)] Waiting until timeout for monitored process [2023-12-16 17:19:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:48,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:48,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 17:19:48,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:48,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:48,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420602068] [2023-12-16 17:19:48,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420602068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:48,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:48,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:48,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236372703] [2023-12-16 17:19:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:48,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:48,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:48,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:48,357 INFO L87 Difference]: Start difference. First operand 543 states and 872 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:48,965 INFO L93 Difference]: Finished difference Result 1054 states and 1733 transitions. [2023-12-16 17:19:48,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:48,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-16 17:19:48,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:48,968 INFO L225 Difference]: With dead ends: 1054 [2023-12-16 17:19:48,968 INFO L226 Difference]: Without dead ends: 548 [2023-12-16 17:19:48,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:48,970 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 790 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:48,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2047 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:19:48,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-16 17:19:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2023-12-16 17:19:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 420 states have (on average 1.6142857142857143) internal successors, (678), 435 states have internal predecessors, (678), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2023-12-16 17:19:48,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 877 transitions. [2023-12-16 17:19:48,983 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 877 transitions. Word has length 104 [2023-12-16 17:19:48,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:48,983 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 877 transitions. [2023-12-16 17:19:48,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 877 transitions. [2023-12-16 17:19:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 17:19:48,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:48,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:48,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:49,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /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 17:19:49,191 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:49,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash 292828456, now seen corresponding path program 1 times [2023-12-16 17:19:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:49,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271428956] [2023-12-16 17:19:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:49,192 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 17:19:49,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:49,193 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:19:49,227 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 (19)] Waiting until timeout for monitored process [2023-12-16 17:19:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:49,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:49,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:19:49,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:49,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:49,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271428956] [2023-12-16 17:19:49,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271428956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:49,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:49,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:49,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012461351] [2023-12-16 17:19:49,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:49,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:49,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:49,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:49,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:49,472 INFO L87 Difference]: Start difference. First operand 548 states and 877 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:50,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:50,010 INFO L93 Difference]: Finished difference Result 1065 states and 1742 transitions. [2023-12-16 17:19:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:50,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-12-16 17:19:50,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:50,013 INFO L225 Difference]: With dead ends: 1065 [2023-12-16 17:19:50,013 INFO L226 Difference]: Without dead ends: 554 [2023-12-16 17:19:50,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:50,016 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 793 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:50,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2047 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:19:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-12-16 17:19:50,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2023-12-16 17:19:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 425 states have (on average 1.6070588235294119) internal successors, (683), 440 states have internal predecessors, (683), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2023-12-16 17:19:50,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 883 transitions. [2023-12-16 17:19:50,028 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 883 transitions. Word has length 107 [2023-12-16 17:19:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:50,029 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 883 transitions. [2023-12-16 17:19:50,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 883 transitions. [2023-12-16 17:19:50,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 17:19:50,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:50,031 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:50,042 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 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:50,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 17:19:50,237 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:50,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:50,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1948230334, now seen corresponding path program 1 times [2023-12-16 17:19:50,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:50,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263101111] [2023-12-16 17:19:50,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:50,238 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 17:19:50,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:50,239 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:19:50,260 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 (20)] Waiting until timeout for monitored process [2023-12-16 17:19:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:50,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:19:50,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:50,529 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 17:19:50,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:50,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:50,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263101111] [2023-12-16 17:19:50,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263101111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:50,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:50,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:19:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175212613] [2023-12-16 17:19:50,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:50,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:19:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:19:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:19:50,532 INFO L87 Difference]: Start difference. First operand 554 states and 883 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:51,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:51,105 INFO L93 Difference]: Finished difference Result 1078 states and 1753 transitions. [2023-12-16 17:19:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:19:51,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2023-12-16 17:19:51,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:51,109 INFO L225 Difference]: With dead ends: 1078 [2023-12-16 17:19:51,109 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 17:19:51,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:19:51,111 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 797 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:51,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2047 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:19:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 17:19:51,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2023-12-16 17:19:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 431 states have (on average 1.5986078886310904) internal successors, (689), 446 states have internal predecessors, (689), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2023-12-16 17:19:51,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 890 transitions. [2023-12-16 17:19:51,125 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 890 transitions. Word has length 110 [2023-12-16 17:19:51,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:51,126 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 890 transitions. [2023-12-16 17:19:51,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 17:19:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 890 transitions. [2023-12-16 17:19:51,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 17:19:51,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:51,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:51,152 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 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:51,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 17:19:51,334 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:51,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:51,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1345513956, now seen corresponding path program 1 times [2023-12-16 17:19:51,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:51,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935574913] [2023-12-16 17:19:51,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:51,335 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 17:19:51,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:51,336 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:19:51,372 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 (21)] Waiting until timeout for monitored process [2023-12-16 17:19:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:51,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 17:19:51,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:19:51,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:51,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:51,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935574913] [2023-12-16 17:19:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [935574913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:51,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:19:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061759964] [2023-12-16 17:19:51,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:51,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:19:51,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:51,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:19:51,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:19:51,684 INFO L87 Difference]: Start difference. First operand 561 states and 890 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:19:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:55,762 INFO L93 Difference]: Finished difference Result 1713 states and 2762 transitions. [2023-12-16 17:19:55,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 17:19:55,763 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-12-16 17:19:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:55,767 INFO L225 Difference]: With dead ends: 1713 [2023-12-16 17:19:55,767 INFO L226 Difference]: Without dead ends: 1189 [2023-12-16 17:19:55,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:19:55,770 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 1479 mSDsluCounter, 2556 mSDsCounter, 0 mSdLazyCounter, 5926 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 6245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 5926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:55,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3187 Invalid, 6245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 5926 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 17:19:55,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2023-12-16 17:19:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1154. [2023-12-16 17:19:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 865 states have (on average 1.6023121387283237) internal successors, (1386), 902 states have internal predecessors, (1386), 224 states have call successors, (224), 59 states have call predecessors, (224), 64 states have return successors, (249), 223 states have call predecessors, (249), 222 states have call successors, (249) [2023-12-16 17:19:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1859 transitions. [2023-12-16 17:19:55,805 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1859 transitions. Word has length 113 [2023-12-16 17:19:55,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:55,805 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1859 transitions. [2023-12-16 17:19:55,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 17:19:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1859 transitions. [2023-12-16 17:19:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 17:19:55,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:55,808 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:55,817 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 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:56,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 17:19:56,015 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:56,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1786597018, now seen corresponding path program 1 times [2023-12-16 17:19:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:56,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581965319] [2023-12-16 17:19:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:56,016 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 17:19:56,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:56,017 INFO L229 MonitoredProcess]: Starting monitored process 22 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 17:19:56,049 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 (22)] Waiting until timeout for monitored process [2023-12-16 17:19:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:56,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 17:19:56,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:56,270 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 17:19:56,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:56,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581965319] [2023-12-16 17:19:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581965319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:56,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:56,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 17:19:56,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524304996] [2023-12-16 17:19:56,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:19:56,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:56,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:19:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:19:56,272 INFO L87 Difference]: Start difference. First operand 1154 states and 1859 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:56,483 INFO L93 Difference]: Finished difference Result 2241 states and 3631 transitions. [2023-12-16 17:19:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:19:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 116 [2023-12-16 17:19:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:56,488 INFO L225 Difference]: With dead ends: 2241 [2023-12-16 17:19:56,488 INFO L226 Difference]: Without dead ends: 1115 [2023-12-16 17:19:56,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:56,492 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 51 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 5640 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:56,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 5640 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:19:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-16 17:19:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1113. [2023-12-16 17:19:56,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 835 states have (on average 1.6083832335329342) internal successors, (1343), 871 states have internal predecessors, (1343), 218 states have call successors, (218), 56 states have call predecessors, (218), 59 states have return successors, (236), 216 states have call predecessors, (236), 216 states have call successors, (236) [2023-12-16 17:19:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1797 transitions. [2023-12-16 17:19:56,524 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1797 transitions. Word has length 116 [2023-12-16 17:19:56,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:19:56,524 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1797 transitions. [2023-12-16 17:19:56,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 17:19:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1797 transitions. [2023-12-16 17:19:56,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 17:19:56,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:19:56,526 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:19:56,534 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 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:19:56,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 17:19:56,732 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:19:56,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:19:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1966177237, now seen corresponding path program 1 times [2023-12-16 17:19:56,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:19:56,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212986564] [2023-12-16 17:19:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:19:56,733 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 17:19:56,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:19:56,734 INFO L229 MonitoredProcess]: Starting monitored process 23 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 17:19:56,777 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 (23)] Waiting until timeout for monitored process [2023-12-16 17:19:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:19:57,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 17:19:57,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:19:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:19:57,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:19:57,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:19:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212986564] [2023-12-16 17:19:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212986564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:19:57,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:19:57,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:19:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656878742] [2023-12-16 17:19:57,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:19:57,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 17:19:57,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:19:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 17:19:57,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:19:57,167 INFO L87 Difference]: Start difference. First operand 1113 states and 1797 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:19:59,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:19:59,955 INFO L93 Difference]: Finished difference Result 2788 states and 4550 transitions. [2023-12-16 17:19:59,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 17:19:59,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2023-12-16 17:19:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:19:59,967 INFO L225 Difference]: With dead ends: 2788 [2023-12-16 17:19:59,968 INFO L226 Difference]: Without dead ends: 1709 [2023-12-16 17:19:59,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 17:19:59,974 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1981 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:19:59,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 1446 Invalid, 3465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 17:19:59,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2023-12-16 17:20:00,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1673. [2023-12-16 17:20:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1245 states have (on average 1.6112449799196786) internal successors, (2006), 1302 states have internal predecessors, (2006), 337 states have call successors, (337), 81 states have call predecessors, (337), 90 states have return successors, (380), 338 states have call predecessors, (380), 334 states have call successors, (380) [2023-12-16 17:20:00,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2723 transitions. [2023-12-16 17:20:00,091 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2723 transitions. Word has length 122 [2023-12-16 17:20:00,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:00,091 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 2723 transitions. [2023-12-16 17:20:00,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (15), 4 states have call predecessors, (15), 5 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-16 17:20:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2723 transitions. [2023-12-16 17:20:00,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 17:20:00,094 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:00,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:00,124 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 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:00,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 17:20:00,302 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:00,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:00,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1095014292, now seen corresponding path program 1 times [2023-12-16 17:20:00,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:00,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018870804] [2023-12-16 17:20:00,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:00,303 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 17:20:00,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:00,304 INFO L229 MonitoredProcess]: Starting monitored process 24 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 17:20:00,306 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 (24)] Waiting until timeout for monitored process [2023-12-16 17:20:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:00,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 17:20:00,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:20:00,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:00,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:00,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018870804] [2023-12-16 17:20:00,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018870804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:00,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:00,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:20:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411867849] [2023-12-16 17:20:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:00,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:20:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:00,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:20:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:00,721 INFO L87 Difference]: Start difference. First operand 1673 states and 2723 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:01,485 INFO L93 Difference]: Finished difference Result 4864 states and 7985 transitions. [2023-12-16 17:20:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:20:01,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2023-12-16 17:20:01,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:01,503 INFO L225 Difference]: With dead ends: 4864 [2023-12-16 17:20:01,503 INFO L226 Difference]: Without dead ends: 3225 [2023-12-16 17:20:01,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:20:01,511 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 753 mSDsluCounter, 1450 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:01,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2290 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:20:01,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2023-12-16 17:20:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3004. [2023-12-16 17:20:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3004 states, 2280 states have (on average 1.6214912280701754) internal successors, (3697), 2365 states have internal predecessors, (3697), 558 states have call successors, (558), 147 states have call predecessors, (558), 165 states have return successors, (657), 543 states have call predecessors, (657), 552 states have call successors, (657) [2023-12-16 17:20:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3004 states to 3004 states and 4912 transitions. [2023-12-16 17:20:01,651 INFO L78 Accepts]: Start accepts. Automaton has 3004 states and 4912 transitions. Word has length 124 [2023-12-16 17:20:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:01,651 INFO L495 AbstractCegarLoop]: Abstraction has 3004 states and 4912 transitions. [2023-12-16 17:20:01,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:01,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3004 states and 4912 transitions. [2023-12-16 17:20:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 17:20:01,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:01,654 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:01,660 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 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:01,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 17:20:01,860 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:01,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash 488552285, now seen corresponding path program 1 times [2023-12-16 17:20:01,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:01,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995913962] [2023-12-16 17:20:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:01,861 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 17:20:01,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:01,862 INFO L229 MonitoredProcess]: Starting monitored process 25 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 17:20:01,864 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 (25)] Waiting until timeout for monitored process [2023-12-16 17:20:02,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:02,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:20:02,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 17:20:02,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:02,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995913962] [2023-12-16 17:20:02,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995913962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:02,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:02,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:20:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015722919] [2023-12-16 17:20:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:02,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:20:02,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:20:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:20:02,154 INFO L87 Difference]: Start difference. First operand 3004 states and 4912 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:20:02,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:02,970 INFO L93 Difference]: Finished difference Result 8659 states and 14294 transitions. [2023-12-16 17:20:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:20:02,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2023-12-16 17:20:02,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:02,995 INFO L225 Difference]: With dead ends: 8659 [2023-12-16 17:20:02,996 INFO L226 Difference]: Without dead ends: 5689 [2023-12-16 17:20:03,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:20:03,043 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 703 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:03,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 2652 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:20:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2023-12-16 17:20:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5661. [2023-12-16 17:20:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5661 states, 4268 states have (on average 1.5951265229615745) internal successors, (6808), 4431 states have internal predecessors, (6808), 1075 states have call successors, (1075), 297 states have call predecessors, (1075), 317 states have return successors, (1275), 1030 states have call predecessors, (1275), 1063 states have call successors, (1275) [2023-12-16 17:20:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5661 states to 5661 states and 9158 transitions. [2023-12-16 17:20:03,324 INFO L78 Accepts]: Start accepts. Automaton has 5661 states and 9158 transitions. Word has length 123 [2023-12-16 17:20:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:03,325 INFO L495 AbstractCegarLoop]: Abstraction has 5661 states and 9158 transitions. [2023-12-16 17:20:03,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-16 17:20:03,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5661 states and 9158 transitions. [2023-12-16 17:20:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 17:20:03,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:03,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:03,337 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 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:03,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 17:20:03,533 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:03,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:03,534 INFO L85 PathProgramCache]: Analyzing trace with hash -301497430, now seen corresponding path program 1 times [2023-12-16 17:20:03,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:03,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209413897] [2023-12-16 17:20:03,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:03,534 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 17:20:03,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:03,535 INFO L229 MonitoredProcess]: Starting monitored process 26 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 17:20:03,567 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 (26)] Waiting until timeout for monitored process [2023-12-16 17:20:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:03,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:20:03,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:03,844 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:20:03,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:03,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:03,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1209413897] [2023-12-16 17:20:03,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1209413897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:03,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:03,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:20:03,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545819132] [2023-12-16 17:20:03,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:03,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:20:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:20:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:20:03,846 INFO L87 Difference]: Start difference. First operand 5661 states and 9158 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:04,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:04,928 INFO L93 Difference]: Finished difference Result 14348 states and 23576 transitions. [2023-12-16 17:20:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:20:04,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2023-12-16 17:20:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:05,022 INFO L225 Difference]: With dead ends: 14348 [2023-12-16 17:20:05,022 INFO L226 Difference]: Without dead ends: 8721 [2023-12-16 17:20:05,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:20:05,042 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 795 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 3878 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:05,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 3878 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 17:20:05,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2023-12-16 17:20:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8707. [2023-12-16 17:20:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8707 states, 6510 states have (on average 1.584331797235023) internal successors, (10314), 6782 states have internal predecessors, (10314), 1698 states have call successors, (1698), 456 states have call predecessors, (1698), 498 states have return successors, (2203), 1661 states have call predecessors, (2203), 1680 states have call successors, (2203) [2023-12-16 17:20:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8707 states to 8707 states and 14215 transitions. [2023-12-16 17:20:05,447 INFO L78 Accepts]: Start accepts. Automaton has 8707 states and 14215 transitions. Word has length 129 [2023-12-16 17:20:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:05,448 INFO L495 AbstractCegarLoop]: Abstraction has 8707 states and 14215 transitions. [2023-12-16 17:20:05,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 8707 states and 14215 transitions. [2023-12-16 17:20:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 17:20:05,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:05,450 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:05,458 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 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:05,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 17:20:05,657 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:05,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash -718894036, now seen corresponding path program 1 times [2023-12-16 17:20:05,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:05,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558610711] [2023-12-16 17:20:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:05,658 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 17:20:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:05,659 INFO L229 MonitoredProcess]: Starting monitored process 27 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 17:20:05,691 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 (27)] Waiting until timeout for monitored process [2023-12-16 17:20:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:05,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-16 17:20:05,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 17:20:05,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:05,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558610711] [2023-12-16 17:20:06,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558610711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:06,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:06,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 17:20:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024359031] [2023-12-16 17:20:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:06,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 17:20:06,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:06,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 17:20:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-16 17:20:06,001 INFO L87 Difference]: Start difference. First operand 8707 states and 14215 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 17:20:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:09,434 INFO L93 Difference]: Finished difference Result 14499 states and 23549 transitions. [2023-12-16 17:20:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 17:20:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2023-12-16 17:20:09,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:09,467 INFO L225 Difference]: With dead ends: 14499 [2023-12-16 17:20:09,467 INFO L226 Difference]: Without dead ends: 8835 [2023-12-16 17:20:09,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-12-16 17:20:09,484 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1971 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 4084 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 4550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 4084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:09,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 1886 Invalid, 4550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 4084 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 17:20:09,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8835 states. [2023-12-16 17:20:10,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8835 to 8683. [2023-12-16 17:20:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8683 states, 6498 states have (on average 1.5835641735918744) internal successors, (10290), 6770 states have internal predecessors, (10290), 1686 states have call successors, (1686), 456 states have call predecessors, (1686), 498 states have return successors, (2191), 1649 states have call predecessors, (2191), 1668 states have call successors, (2191) [2023-12-16 17:20:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8683 states to 8683 states and 14167 transitions. [2023-12-16 17:20:10,102 INFO L78 Accepts]: Start accepts. Automaton has 8683 states and 14167 transitions. Word has length 129 [2023-12-16 17:20:10,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:10,102 INFO L495 AbstractCegarLoop]: Abstraction has 8683 states and 14167 transitions. [2023-12-16 17:20:10,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 17:20:10,103 INFO L276 IsEmpty]: Start isEmpty. Operand 8683 states and 14167 transitions. [2023-12-16 17:20:10,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 17:20:10,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:10,106 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:10,128 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 (27)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:10,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 17:20:10,316 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:10,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:10,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1803235042, now seen corresponding path program 1 times [2023-12-16 17:20:10,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:10,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216049587] [2023-12-16 17:20:10,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:10,317 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 17:20:10,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:10,321 INFO L229 MonitoredProcess]: Starting monitored process 28 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 17:20:10,353 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 (28)] Waiting until timeout for monitored process [2023-12-16 17:20:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:10,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:20:10,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:10,766 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:10,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:10,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:10,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216049587] [2023-12-16 17:20:10,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [216049587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:10,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:10,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:20:10,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169545523] [2023-12-16 17:20:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:10,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:20:10,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:10,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:20:10,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:20:10,769 INFO L87 Difference]: Start difference. First operand 8683 states and 14167 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:11,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:11,720 INFO L93 Difference]: Finished difference Result 23194 states and 38671 transitions. [2023-12-16 17:20:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:20:11,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-12-16 17:20:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:11,793 INFO L225 Difference]: With dead ends: 23194 [2023-12-16 17:20:11,793 INFO L226 Difference]: Without dead ends: 14719 [2023-12-16 17:20:11,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 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 17:20:11,825 INFO L413 NwaCegarLoop]: 908 mSDtfsCounter, 777 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:11,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1688 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2023-12-16 17:20:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 14717. [2023-12-16 17:20:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14717 states, 10944 states have (on average 1.578673245614035) internal successors, (17277), 11434 states have internal predecessors, (17277), 2930 states have call successors, (2930), 774 states have call predecessors, (2930), 842 states have return successors, (4301), 2891 states have call predecessors, (4301), 2900 states have call successors, (4301) [2023-12-16 17:20:12,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14717 states to 14717 states and 24508 transitions. [2023-12-16 17:20:12,753 INFO L78 Accepts]: Start accepts. Automaton has 14717 states and 24508 transitions. Word has length 137 [2023-12-16 17:20:12,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:12,753 INFO L495 AbstractCegarLoop]: Abstraction has 14717 states and 24508 transitions. [2023-12-16 17:20:12,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:12,754 INFO L276 IsEmpty]: Start isEmpty. Operand 14717 states and 24508 transitions. [2023-12-16 17:20:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-16 17:20:12,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:12,756 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:12,764 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 (28)] Ended with exit code 0 [2023-12-16 17:20:12,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 17:20:12,963 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:12,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:12,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1236150487, now seen corresponding path program 1 times [2023-12-16 17:20:12,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:12,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797048899] [2023-12-16 17:20:12,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:12,964 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 17:20:12,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:12,965 INFO L229 MonitoredProcess]: Starting monitored process 29 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 17:20:12,996 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 (29)] Waiting until timeout for monitored process [2023-12-16 17:20:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:13,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:20:13,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:13,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:13,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:13,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797048899] [2023-12-16 17:20:13,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797048899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:13,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:13,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:20:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448227623] [2023-12-16 17:20:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:13,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:20:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:20:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:20:13,346 INFO L87 Difference]: Start difference. First operand 14717 states and 24508 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:14,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:14,976 INFO L93 Difference]: Finished difference Result 41210 states and 70773 transitions. [2023-12-16 17:20:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:20:14,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2023-12-16 17:20:14,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:15,091 INFO L225 Difference]: With dead ends: 41210 [2023-12-16 17:20:15,091 INFO L226 Difference]: Without dead ends: 26817 [2023-12-16 17:20:15,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 17:20:15,153 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 776 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:15,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1690 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26817 states. [2023-12-16 17:20:16,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26817 to 26815. [2023-12-16 17:20:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26815 states, 19860 states have (on average 1.5758308157099699) internal successors, (31296), 20786 states have internal predecessors, (31296), 5424 states have call successors, (5424), 1410 states have call predecessors, (5424), 1530 states have return successors, (9421), 5381 states have call predecessors, (9421), 5370 states have call successors, (9421) [2023-12-16 17:20:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26815 states to 26815 states and 46141 transitions. [2023-12-16 17:20:17,043 INFO L78 Accepts]: Start accepts. Automaton has 26815 states and 46141 transitions. Word has length 138 [2023-12-16 17:20:17,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:17,043 INFO L495 AbstractCegarLoop]: Abstraction has 26815 states and 46141 transitions. [2023-12-16 17:20:17,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 26815 states and 46141 transitions. [2023-12-16 17:20:17,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 17:20:17,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:17,047 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:17,057 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 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:17,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 17:20:17,255 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:17,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:17,256 INFO L85 PathProgramCache]: Analyzing trace with hash 922630663, now seen corresponding path program 1 times [2023-12-16 17:20:17,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:17,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733453531] [2023-12-16 17:20:17,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:17,257 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 17:20:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:17,258 INFO L229 MonitoredProcess]: Starting monitored process 30 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 17:20:17,273 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 (30)] Waiting until timeout for monitored process [2023-12-16 17:20:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:17,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:20:17,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:17,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:17,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733453531] [2023-12-16 17:20:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733453531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:20:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412621793] [2023-12-16 17:20:17,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:17,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:20:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:20:17,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:20:17,656 INFO L87 Difference]: Start difference. First operand 26815 states and 46141 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:21,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:21,261 INFO L93 Difference]: Finished difference Result 77302 states and 139213 transitions. [2023-12-16 17:20:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:20:21,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 139 [2023-12-16 17:20:21,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:21,763 INFO L225 Difference]: With dead ends: 77302 [2023-12-16 17:20:21,763 INFO L226 Difference]: Without dead ends: 51043 [2023-12-16 17:20:21,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 17:20:21,991 INFO L413 NwaCegarLoop]: 893 mSDtfsCounter, 772 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:21,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1689 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:20:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51043 states. [2023-12-16 17:20:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51043 to 51041. [2023-12-16 17:20:25,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51041 states, 37716 states have (on average 1.5738943684377982) internal successors, (59361), 39514 states have internal predecessors, (59361), 10418 states have call successors, (10418), 2682 states have call predecessors, (10418), 2906 states have return successors, (22769), 10367 states have call predecessors, (22769), 10316 states have call successors, (22769) [2023-12-16 17:20:25,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51041 states to 51041 states and 92548 transitions. [2023-12-16 17:20:26,019 INFO L78 Accepts]: Start accepts. Automaton has 51041 states and 92548 transitions. Word has length 139 [2023-12-16 17:20:26,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:20:26,020 INFO L495 AbstractCegarLoop]: Abstraction has 51041 states and 92548 transitions. [2023-12-16 17:20:26,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 17:20:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 51041 states and 92548 transitions. [2023-12-16 17:20:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 17:20:26,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:20:26,042 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:20:26,052 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 (30)] Forceful destruction successful, exit code 0 [2023-12-16 17:20:26,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 17:20:26,252 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:20:26,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:20:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash 773169246, now seen corresponding path program 1 times [2023-12-16 17:20:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:20:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488391693] [2023-12-16 17:20:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:20:26,253 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 17:20:26,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:20:26,254 INFO L229 MonitoredProcess]: Starting monitored process 31 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 17:20:26,256 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 (31)] Waiting until timeout for monitored process [2023-12-16 17:20:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:20:26,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 17:20:26,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:20:27,105 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 17:20:27,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:20:27,106 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:20:27,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488391693] [2023-12-16 17:20:27,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488391693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:20:27,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:20:27,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 17:20:27,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500761773] [2023-12-16 17:20:27,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:20:27,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 17:20:27,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:20:27,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 17:20:27,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-16 17:20:27,108 INFO L87 Difference]: Start difference. First operand 51041 states and 92548 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-16 17:20:34,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:20:34,963 INFO L93 Difference]: Finished difference Result 117057 states and 213465 transitions. [2023-12-16 17:20:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 17:20:34,964 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 140 [2023-12-16 17:20:34,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:20:35,618 INFO L225 Difference]: With dead ends: 117057 [2023-12-16 17:20:35,619 INFO L226 Difference]: Without dead ends: 84151 [2023-12-16 17:20:35,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-16 17:20:35,989 INFO L413 NwaCegarLoop]: 848 mSDtfsCounter, 825 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 4989 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:20:35,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 4989 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 17:20:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84151 states. Received shutdown request... [2023-12-16 17:20:38,748 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:20:38,748 WARN L340 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 (31)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:20:39,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 17:20:39,769 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 (31)] Ended with exit code 0 [2023-12-16 17:20:41,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84151 to 83537. [2023-12-16 17:20:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83537 states, 62210 states have (on average 1.5593955955634142) internal successors, (97010), 64779 states have internal predecessors, (97010), 16246 states have call successors, (16246), 4421 states have call predecessors, (16246), 5080 states have return successors, (38620), 16646 states have call predecessors, (38620), 16093 states have call successors, (38620) [2023-12-16 17:20:41,499 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:20:41,500 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:20:41,502 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 17:20:41,504 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:20:41,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:20:41 BoogieIcfgContainer [2023-12-16 17:20:41,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:20:41,506 INFO L158 Benchmark]: Toolchain (without parser) took 67070.79ms. Allocated memory was 262.1MB in the beginning and 6.4GB in the end (delta: 6.1GB). Free memory was 206.1MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.43ms. Allocated memory is still 262.1MB. Free memory was 205.6MB in the beginning and 141.6MB in the end (delta: 64.1MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.09ms. Allocated memory is still 262.1MB. Free memory was 141.6MB in the beginning and 224.8MB in the end (delta: -83.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: Boogie Preprocessor took 127.88ms. Allocated memory is still 262.1MB. Free memory was 224.8MB in the beginning and 215.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: RCFGBuilder took 1392.87ms. Allocated memory is still 262.1MB. Free memory was 215.9MB in the beginning and 191.4MB in the end (delta: 24.4MB). Peak memory consumption was 105.2MB. Max. memory is 8.0GB. [2023-12-16 17:20:41,506 INFO L158 Benchmark]: TraceAbstraction took 64586.13ms. Allocated memory was 262.1MB in the beginning and 6.4GB in the end (delta: 6.1GB). Free memory was 190.9MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 17:20:41,507 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 848.43ms. Allocated memory is still 262.1MB. Free memory was 205.6MB in the beginning and 141.6MB in the end (delta: 64.1MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 110.09ms. Allocated memory is still 262.1MB. Free memory was 141.6MB in the beginning and 224.8MB in the end (delta: -83.2MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 127.88ms. Allocated memory is still 262.1MB. Free memory was 224.8MB in the beginning and 215.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1392.87ms. Allocated memory is still 262.1MB. Free memory was 215.9MB in the beginning and 191.4MB in the end (delta: 24.4MB). Peak memory consumption was 105.2MB. Max. memory is 8.0GB. * TraceAbstraction took 64586.13ms. Allocated memory was 262.1MB in the beginning and 6.4GB in the end (delta: 6.1GB). Free memory was 190.9MB in the beginning and 4.8GB in the end (delta: -4.6GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] - GenericResultAtLocation [Line: 716]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [716] - GenericResultAtLocation [Line: 1082]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1082] - GenericResultAtLocation [Line: 1183]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1183] - GenericResultAtLocation [Line: 1221]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1221] - GenericResultAtLocation [Line: 1341]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1341] - GenericResultAtLocation [Line: 2956]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2956] - GenericResultAtLocation [Line: 3305]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3305] - GenericResultAtLocation [Line: 3342]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3342] - GenericResultAtLocation [Line: 3351]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3351] * 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 - TimeoutResultAtElement [Line: 3347]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3347). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 546 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.5s, OverallIterations: 30, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 34.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15212 SdHoareTripleChecker+Valid, 16.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14786 mSDsluCounter, 85389 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61024 mSDsCounter, 1457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19827 IncrementalHoareTripleChecker+Invalid, 21284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1457 mSolverCounterUnsat, 24365 mSDtfsCounter, 19827 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3276 GetRequests, 3135 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51041occurred in iteration=29, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.3s AutomataMinimizationTime, 30 MinimizatonAttempts, 514 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 3257 NumberOfCodeBlocks, 3257 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3227 ConstructedInterpolants, 0 QuantifiedInterpolants, 5806 SizeOfPredicates, 51 NumberOfNonLiveVariables, 18875 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 1109/1109 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 could not prove your program: Timeout Completed graceful shutdown