/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 05:23:18,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 05:23:18,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 05:23:18,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 05:23:18,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 05:23:18,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 05:23:18,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 05:23:18,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 05:23:18,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 05:23:18,283 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 05:23:18,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 05:23:18,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 05:23:18,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 05:23:18,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 05:23:18,285 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 05:23:18,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 05:23:18,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 05:23:18,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 05:23:18,286 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 05:23:18,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 05:23:18,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 05:23:18,287 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 05:23:18,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 05:23:18,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 05:23:18,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:23:18,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 05:23:18,289 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 05:23:18,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 05:23:18,291 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 05:23:18,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 05:23:18,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 05:23:18,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 05:23:18,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 05:23:18,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 05:23:18,497 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 05:23:18,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-25 05:23:19,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 05:23:19,777 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 05:23:19,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-25 05:23:19,795 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f26d9fe/9fca226b363c4dcf897307d1f75a4b16/FLAGbf92283f6 [2023-12-25 05:23:20,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30f26d9fe/9fca226b363c4dcf897307d1f75a4b16 [2023-12-25 05:23:20,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 05:23:20,074 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 05:23:20,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 05:23:20,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 05:23:20,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 05:23:20,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1fa62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20, skipping insertion in model container [2023-12-25 05:23:20,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,143 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:23:20,432 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_product28.cil.c[43703,43716] [2023-12-25 05:23:20,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:20,513 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-25 05:23:20,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 05:23:20,569 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_product28.cil.c[43703,43716] [2023-12-25 05:23:20,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:20,634 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 05:23:20,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2023-12-25 05:23:20,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2023-12-25 05:23:20,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2023-12-25 05:23:20,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2023-12-25 05:23:20,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2023-12-25 05:23:20,695 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2023-12-25 05:23:20,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 05:23:20,756 INFO L206 MainTranslator]: Completed translation [2023-12-25 05:23:20,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20 WrapperNode [2023-12-25 05:23:20,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 05:23:20,758 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 05:23:20,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 05:23:20,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 05:23:20,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,866 INFO L138 Inliner]: procedures = 96, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1043 [2023-12-25 05:23:20,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 05:23:20,867 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 05:23:20,867 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 05:23:20,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 05:23:20,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,941 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 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]. [2023-12-25 05:23:20,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,958 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:20,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 05:23:20,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 05:23:20,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 05:23:20,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 05:23:20,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (1/1) ... [2023-12-25 05:23:21,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 05:23:21,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 05:23:21,064 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) [2023-12-25 05:23:21,109 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 [2023-12-25 05:23:21,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 05:23:21,117 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-25 05:23:21,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-25 05:23:21,117 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-25 05:23:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-25 05:23:21,118 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-25 05:23:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-25 05:23:21,118 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-25 05:23:21,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-25 05:23:21,119 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-25 05:23:21,119 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-25 05:23:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-25 05:23:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-25 05:23:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-25 05:23:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-25 05:23:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-25 05:23:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-25 05:23:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-25 05:23:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-25 05:23:21,121 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-25 05:23:21,121 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-25 05:23:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-25 05:23:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-25 05:23:21,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 05:23:21,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#17 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#18 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#19 [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-25 05:23:21,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-25 05:23:21,123 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-25 05:23:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-25 05:23:21,124 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:23:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-25 05:23:21,124 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-25 05:23:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-25 05:23:21,124 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-25 05:23:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-25 05:23:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-25 05:23:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-25 05:23:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-25 05:23:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-25 05:23:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-25 05:23:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-25 05:23:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-25 05:23:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-25 05:23:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-25 05:23:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-25 05:23:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 05:23:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 05:23:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-25 05:23:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-25 05:23:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-25 05:23:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-25 05:23:21,305 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 05:23:21,307 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 05:23:22,179 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 05:23:22,274 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 05:23:22,274 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 05:23:22,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:23:22 BoogieIcfgContainer [2023-12-25 05:23:22,274 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 05:23:22,276 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 05:23:22,276 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 05:23:22,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 05:23:22,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 05:23:20" (1/3) ... [2023-12-25 05:23:22,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cef57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:23:22, skipping insertion in model container [2023-12-25 05:23:22,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 05:23:20" (2/3) ... [2023-12-25 05:23:22,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cef57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 05:23:22, skipping insertion in model container [2023-12-25 05:23:22,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 05:23:22" (3/3) ... [2023-12-25 05:23:22,282 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2023-12-25 05:23:22,294 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 05:23:22,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 05:23:22,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 05:23:22,347 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;@1f968fcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 05:23:22,348 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 05:23:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-25 05:23:22,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-25 05:23:22,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:22,373 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:22,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:22,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:22,380 INFO L85 PathProgramCache]: Analyzing trace with hash -734151109, now seen corresponding path program 1 times [2023-12-25 05:23:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864488093] [2023-12-25 05:23:22,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:22,392 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 [2023-12-25 05:23:22,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:22,396 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) [2023-12-25 05:23:22,397 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 [2023-12-25 05:23:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:22,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:22,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:22,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:22,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:22,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:22,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864488093] [2023-12-25 05:23:22,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864488093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:22,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:22,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:22,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108062063] [2023-12-25 05:23:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:22,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:22,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:22,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:22,776 INFO L87 Difference]: Start difference. First operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:23,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:23,024 INFO L93 Difference]: Finished difference Result 1063 states and 1788 transitions. [2023-12-25 05:23:23,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:23,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-25 05:23:23,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:23,045 INFO L225 Difference]: With dead ends: 1063 [2023-12-25 05:23:23,046 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:23,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:23,056 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 15 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2564 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 [2023-12-25 05:23:23,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2564 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:23,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:23,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-25 05:23:23,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6911764705882353) internal successors, (690), 425 states have internal predecessors, (690), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 883 transitions. [2023-12-25 05:23:23,155 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 883 transitions. Word has length 52 [2023-12-25 05:23:23,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:23,155 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 883 transitions. [2023-12-25 05:23:23,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:23,156 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 883 transitions. [2023-12-25 05:23:23,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-25 05:23:23,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:23,162 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:23,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 05:23:23,366 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 [2023-12-25 05:23:23,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:23,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:23,368 INFO L85 PathProgramCache]: Analyzing trace with hash 473576812, now seen corresponding path program 1 times [2023-12-25 05:23:23,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:23,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835381595] [2023-12-25 05:23:23,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:23,369 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 [2023-12-25 05:23:23,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:23,370 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) [2023-12-25 05:23:23,413 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 [2023-12-25 05:23:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:23,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:23,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:23,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:23,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [835381595] [2023-12-25 05:23:23,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [835381595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:23,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:23,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120262694] [2023-12-25 05:23:23,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:23,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:23,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:23,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:23,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:23,608 INFO L87 Difference]: Start difference. First operand 531 states and 883 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:23,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:23,715 INFO L93 Difference]: Finished difference Result 1050 states and 1748 transitions. [2023-12-25 05:23:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-25 05:23:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:23,720 INFO L225 Difference]: With dead ends: 1050 [2023-12-25 05:23:23,720 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:23,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:23,723 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 12 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2547 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 [2023-12-25 05:23:23,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2547 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:23,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-25 05:23:23,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6887254901960784) internal successors, (689), 425 states have internal predecessors, (689), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 882 transitions. [2023-12-25 05:23:23,755 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 882 transitions. Word has length 53 [2023-12-25 05:23:23,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:23,755 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 882 transitions. [2023-12-25 05:23:23,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 882 transitions. [2023-12-25 05:23:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-25 05:23:23,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:23,758 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:23,779 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 (3)] Ended with exit code 0 [2023-12-25 05:23:23,963 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 [2023-12-25 05:23:23,963 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:23,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1179985193, now seen corresponding path program 1 times [2023-12-25 05:23:23,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:23,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692686430] [2023-12-25 05:23:23,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:23,965 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 [2023-12-25 05:23:23,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:23,966 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) [2023-12-25 05:23:24,025 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 [2023-12-25 05:23:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:24,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:24,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:24,251 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:24,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692686430] [2023-12-25 05:23:24,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692686430] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:24,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:24,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:24,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27545371] [2023-12-25 05:23:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:24,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:24,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:24,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:24,253 INFO L87 Difference]: Start difference. First operand 531 states and 882 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:24,344 INFO L93 Difference]: Finished difference Result 1050 states and 1747 transitions. [2023-12-25 05:23:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:24,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-25 05:23:24,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:24,348 INFO L225 Difference]: With dead ends: 1050 [2023-12-25 05:23:24,348 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:24,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:24,352 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 10 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2547 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 [2023-12-25 05:23:24,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2547 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:24,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-25 05:23:24,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6862745098039216) internal successors, (688), 425 states have internal predecessors, (688), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:24,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 881 transitions. [2023-12-25 05:23:24,367 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 881 transitions. Word has length 54 [2023-12-25 05:23:24,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:24,368 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 881 transitions. [2023-12-25 05:23:24,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:24,368 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 881 transitions. [2023-12-25 05:23:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-25 05:23:24,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:24,369 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:24,387 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 [2023-12-25 05:23:24,573 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 [2023-12-25 05:23:24,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:24,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1339221688, now seen corresponding path program 1 times [2023-12-25 05:23:24,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:24,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690719359] [2023-12-25 05:23:24,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:24,575 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 [2023-12-25 05:23:24,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:24,576 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) [2023-12-25 05:23:24,579 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 [2023-12-25 05:23:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:24,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:24,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:24,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:24,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:24,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690719359] [2023-12-25 05:23:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [690719359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:24,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:24,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:24,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106539440] [2023-12-25 05:23:24,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:24,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:24,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:24,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:24,823 INFO L87 Difference]: Start difference. First operand 531 states and 881 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:24,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:24,920 INFO L93 Difference]: Finished difference Result 1050 states and 1746 transitions. [2023-12-25 05:23:24,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:24,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-25 05:23:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:24,925 INFO L225 Difference]: With dead ends: 1050 [2023-12-25 05:23:24,925 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:24,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:24,932 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 8 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2547 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 [2023-12-25 05:23:24,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2547 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-25 05:23:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6838235294117647) internal successors, (687), 425 states have internal predecessors, (687), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 880 transitions. [2023-12-25 05:23:24,953 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 880 transitions. Word has length 55 [2023-12-25 05:23:24,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:24,954 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 880 transitions. [2023-12-25 05:23:24,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 880 transitions. [2023-12-25 05:23:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-25 05:23:24,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:24,956 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:24,976 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 [2023-12-25 05:23:25,161 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 [2023-12-25 05:23:25,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:25,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1875959667, now seen corresponding path program 1 times [2023-12-25 05:23:25,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:25,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365494356] [2023-12-25 05:23:25,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:25,163 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 [2023-12-25 05:23:25,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:25,180 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) [2023-12-25 05:23:25,196 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 [2023-12-25 05:23:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:25,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:25,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:25,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:25,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365494356] [2023-12-25 05:23:25,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365494356] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:25,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:25,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:25,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269367162] [2023-12-25 05:23:25,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:25,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:25,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:25,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:25,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:25,392 INFO L87 Difference]: Start difference. First operand 531 states and 880 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:25,499 INFO L93 Difference]: Finished difference Result 1050 states and 1745 transitions. [2023-12-25 05:23:25,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:25,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-25 05:23:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:25,502 INFO L225 Difference]: With dead ends: 1050 [2023-12-25 05:23:25,502 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:25,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:25,505 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 6 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2547 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 [2023-12-25 05:23:25,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2547 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:25,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2023-12-25 05:23:25,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6813725490196079) internal successors, (686), 425 states have internal predecessors, (686), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 879 transitions. [2023-12-25 05:23:25,520 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 879 transitions. Word has length 56 [2023-12-25 05:23:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:25,520 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 879 transitions. [2023-12-25 05:23:25,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 879 transitions. [2023-12-25 05:23:25,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:23:25,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:25,521 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:25,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-25 05:23:25,725 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 [2023-12-25 05:23:25,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:25,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1971055324, now seen corresponding path program 1 times [2023-12-25 05:23:25,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:25,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720442814] [2023-12-25 05:23:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:25,731 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 [2023-12-25 05:23:25,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:25,732 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) [2023-12-25 05:23:25,748 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 [2023-12-25 05:23:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:25,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:23:25,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:25,974 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:25,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:25,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720442814] [2023-12-25 05:23:25,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720442814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:25,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:25,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:23:25,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407638864] [2023-12-25 05:23:25,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:25,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:23:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:25,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:23:25,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:23:25,976 INFO L87 Difference]: Start difference. First operand 531 states and 879 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:26,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:26,140 INFO L93 Difference]: Finished difference Result 1060 states and 1761 transitions. [2023-12-25 05:23:26,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:26,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2023-12-25 05:23:26,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:26,143 INFO L225 Difference]: With dead ends: 1060 [2023-12-25 05:23:26,143 INFO L226 Difference]: Without dead ends: 545 [2023-12-25 05:23:26,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:26,147 INFO L413 NwaCegarLoop]: 850 mSDtfsCounter, 115 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5006 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 [2023-12-25 05:23:26,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5006 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-25 05:23:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 543. [2023-12-25 05:23:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 417 states have (on average 1.6786570743405276) internal successors, (700), 436 states have internal predecessors, (700), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2023-12-25 05:23:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 898 transitions. [2023-12-25 05:23:26,163 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 898 transitions. Word has length 57 [2023-12-25 05:23:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:26,163 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 898 transitions. [2023-12-25 05:23:26,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 898 transitions. [2023-12-25 05:23:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-25 05:23:26,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:26,164 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:26,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 05:23:26,368 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 [2023-12-25 05:23:26,369 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:26,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1140564675, now seen corresponding path program 1 times [2023-12-25 05:23:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:26,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623385324] [2023-12-25 05:23:26,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:26,370 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 [2023-12-25 05:23:26,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:26,371 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) [2023-12-25 05:23:26,371 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 [2023-12-25 05:23:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:26,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:26,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:26,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:26,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:26,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623385324] [2023-12-25 05:23:26,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623385324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:26,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:26,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:26,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619632945] [2023-12-25 05:23:26,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:26,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:26,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:26,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:26,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:26,574 INFO L87 Difference]: Start difference. First operand 543 states and 898 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:26,700 INFO L93 Difference]: Finished difference Result 1066 states and 1771 transitions. [2023-12-25 05:23:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-25 05:23:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:26,703 INFO L225 Difference]: With dead ends: 1066 [2023-12-25 05:23:26,703 INFO L226 Difference]: Without dead ends: 539 [2023-12-25 05:23:26,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:26,705 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 6 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2546 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 [2023-12-25 05:23:26,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2546 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-12-25 05:23:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2023-12-25 05:23:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 415 states have (on average 1.6795180722891567) internal successors, (697), 433 states have internal predecessors, (697), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2023-12-25 05:23:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 891 transitions. [2023-12-25 05:23:26,718 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 891 transitions. Word has length 57 [2023-12-25 05:23:26,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:26,718 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 891 transitions. [2023-12-25 05:23:26,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:26,718 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 891 transitions. [2023-12-25 05:23:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-25 05:23:26,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:26,719 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:26,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-12-25 05:23:26,919 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 [2023-12-25 05:23:26,920 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2132342261, now seen corresponding path program 1 times [2023-12-25 05:23:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279264888] [2023-12-25 05:23:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:26,921 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 [2023-12-25 05:23:26,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:26,922 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) [2023-12-25 05:23:26,923 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 [2023-12-25 05:23:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:27,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:27,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:27,126 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:27,126 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:27,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279264888] [2023-12-25 05:23:27,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279264888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:27,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:27,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:27,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455738624] [2023-12-25 05:23:27,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:27,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:27,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:27,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:27,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:27,127 INFO L87 Difference]: Start difference. First operand 539 states and 891 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:27,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:27,285 INFO L93 Difference]: Finished difference Result 1089 states and 1813 transitions. [2023-12-25 05:23:27,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 05:23:27,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-25 05:23:27,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:27,289 INFO L225 Difference]: With dead ends: 1089 [2023-12-25 05:23:27,289 INFO L226 Difference]: Without dead ends: 552 [2023-12-25 05:23:27,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:27,291 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 112 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2377 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 [2023-12-25 05:23:27,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2377 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:27,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-25 05:23:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 544. [2023-12-25 05:23:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.6666666666666667) internal successors, (700), 437 states have internal predecessors, (700), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:27,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 893 transitions. [2023-12-25 05:23:27,304 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 893 transitions. Word has length 58 [2023-12-25 05:23:27,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:27,304 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 893 transitions. [2023-12-25 05:23:27,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:27,305 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 893 transitions. [2023-12-25 05:23:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-25 05:23:27,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:27,305 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:27,314 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 [2023-12-25 05:23:27,514 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 [2023-12-25 05:23:27,514 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:27,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1558138215, now seen corresponding path program 1 times [2023-12-25 05:23:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774427448] [2023-12-25 05:23:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:27,515 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 [2023-12-25 05:23:27,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:27,516 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) [2023-12-25 05:23:27,517 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 [2023-12-25 05:23:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:27,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:27,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:27,748 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:27,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:27,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774427448] [2023-12-25 05:23:27,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774427448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:27,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:27,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:27,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150151162] [2023-12-25 05:23:27,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:27,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:27,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:27,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:27,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:27,750 INFO L87 Difference]: Start difference. First operand 544 states and 893 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:27,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:27,915 INFO L93 Difference]: Finished difference Result 1042 states and 1711 transitions. [2023-12-25 05:23:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:27,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-25 05:23:27,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:27,920 INFO L225 Difference]: With dead ends: 1042 [2023-12-25 05:23:27,920 INFO L226 Difference]: Without dead ends: 544 [2023-12-25 05:23:27,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:27,923 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 77 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2378 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 [2023-12-25 05:23:27,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2378 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-25 05:23:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2023-12-25 05:23:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.6571428571428573) internal successors, (696), 437 states have internal predecessors, (696), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 889 transitions. [2023-12-25 05:23:27,937 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 889 transitions. Word has length 59 [2023-12-25 05:23:27,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:27,937 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 889 transitions. [2023-12-25 05:23:27,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 889 transitions. [2023-12-25 05:23:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:23:27,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:27,938 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:27,952 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 [2023-12-25 05:23:28,142 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 [2023-12-25 05:23:28,143 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:28,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash 619231354, now seen corresponding path program 1 times [2023-12-25 05:23:28,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:28,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936706520] [2023-12-25 05:23:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:28,144 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 [2023-12-25 05:23:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:28,145 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) [2023-12-25 05:23:28,147 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 [2023-12-25 05:23:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:28,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:28,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:28,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:28,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936706520] [2023-12-25 05:23:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936706520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:28,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793557885] [2023-12-25 05:23:28,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:28,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:28,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:28,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:28,365 INFO L87 Difference]: Start difference. First operand 544 states and 889 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:28,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:28,515 INFO L93 Difference]: Finished difference Result 1042 states and 1707 transitions. [2023-12-25 05:23:28,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:28,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-25 05:23:28,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:28,518 INFO L225 Difference]: With dead ends: 1042 [2023-12-25 05:23:28,518 INFO L226 Difference]: Without dead ends: 544 [2023-12-25 05:23:28,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:28,523 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 72 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2378 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 [2023-12-25 05:23:28,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2378 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:28,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-25 05:23:28,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2023-12-25 05:23:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 420 states have (on average 1.6476190476190475) internal successors, (692), 437 states have internal predecessors, (692), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 885 transitions. [2023-12-25 05:23:28,537 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 885 transitions. Word has length 60 [2023-12-25 05:23:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:28,537 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 885 transitions. [2023-12-25 05:23:28,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 885 transitions. [2023-12-25 05:23:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-25 05:23:28,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:28,540 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:28,556 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 [2023-12-25 05:23:28,745 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 [2023-12-25 05:23:28,745 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:28,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:28,746 INFO L85 PathProgramCache]: Analyzing trace with hash 362239226, now seen corresponding path program 1 times [2023-12-25 05:23:28,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:28,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649122934] [2023-12-25 05:23:28,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:28,747 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 [2023-12-25 05:23:28,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:28,748 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) [2023-12-25 05:23:28,749 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 [2023-12-25 05:23:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:28,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:23:28,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:28,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:28,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:28,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649122934] [2023-12-25 05:23:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649122934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:28,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:28,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:23:28,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705213841] [2023-12-25 05:23:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:28,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:23:28,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:28,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:23:28,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:23:28,988 INFO L87 Difference]: Start difference. First operand 544 states and 885 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:29,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:29,140 INFO L93 Difference]: Finished difference Result 1050 states and 1716 transitions. [2023-12-25 05:23:29,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:29,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-12-25 05:23:29,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:29,144 INFO L225 Difference]: With dead ends: 1050 [2023-12-25 05:23:29,144 INFO L226 Difference]: Without dead ends: 531 [2023-12-25 05:23:29,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:29,147 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 106 mSDsluCounter, 4076 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 4914 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 [2023-12-25 05:23:29,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 4914 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:29,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-25 05:23:29,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 523. [2023-12-25 05:23:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 399 states have (on average 1.6416040100250626) internal successors, (655), 416 states have internal predecessors, (655), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 848 transitions. [2023-12-25 05:23:29,161 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 848 transitions. Word has length 60 [2023-12-25 05:23:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:29,161 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 848 transitions. [2023-12-25 05:23:29,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 848 transitions. [2023-12-25 05:23:29,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-25 05:23:29,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:29,163 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:29,182 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 [2023-12-25 05:23:29,368 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 [2023-12-25 05:23:29,369 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:29,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:29,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1259439116, now seen corresponding path program 1 times [2023-12-25 05:23:29,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:29,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795791549] [2023-12-25 05:23:29,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:29,370 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 [2023-12-25 05:23:29,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:29,372 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) [2023-12-25 05:23:29,414 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 [2023-12-25 05:23:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:29,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:29,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:29,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:29,584 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:29,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795791549] [2023-12-25 05:23:29,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795791549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:29,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:29,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998533795] [2023-12-25 05:23:29,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:29,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:29,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:29,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:29,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:29,585 INFO L87 Difference]: Start difference. First operand 523 states and 848 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:29,683 INFO L93 Difference]: Finished difference Result 1021 states and 1666 transitions. [2023-12-25 05:23:29,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:29,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-25 05:23:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:29,686 INFO L225 Difference]: With dead ends: 1021 [2023-12-25 05:23:29,686 INFO L226 Difference]: Without dead ends: 523 [2023-12-25 05:23:29,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:29,688 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 40 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 2378 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 [2023-12-25 05:23:29,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 2378 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:29,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-25 05:23:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-25 05:23:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 399 states have (on average 1.6390977443609023) internal successors, (654), 416 states have internal predecessors, (654), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:29,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 847 transitions. [2023-12-25 05:23:29,699 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 847 transitions. Word has length 61 [2023-12-25 05:23:29,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:29,699 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 847 transitions. [2023-12-25 05:23:29,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:29,699 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 847 transitions. [2023-12-25 05:23:29,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-25 05:23:29,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:29,700 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:29,705 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 (13)] Ended with exit code 0 [2023-12-25 05:23:29,905 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 [2023-12-25 05:23:29,905 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:29,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:29,905 INFO L85 PathProgramCache]: Analyzing trace with hash -687407361, now seen corresponding path program 1 times [2023-12-25 05:23:29,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:29,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284484796] [2023-12-25 05:23:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:29,906 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 [2023-12-25 05:23:29,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:29,907 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) [2023-12-25 05:23:29,909 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 [2023-12-25 05:23:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:30,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-25 05:23:30,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:30,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:30,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:30,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284484796] [2023-12-25 05:23:30,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284484796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:30,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:30,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:30,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198144900] [2023-12-25 05:23:30,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:30,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 05:23:30,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:30,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 05:23:30,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 05:23:30,148 INFO L87 Difference]: Start difference. First operand 523 states and 847 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:30,247 INFO L93 Difference]: Finished difference Result 1021 states and 1665 transitions. [2023-12-25 05:23:30,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 05:23:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-25 05:23:30,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:30,251 INFO L225 Difference]: With dead ends: 1021 [2023-12-25 05:23:30,251 INFO L226 Difference]: Without dead ends: 523 [2023-12-25 05:23:30,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:30,254 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 38 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2378 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 [2023-12-25 05:23:30,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2378 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:30,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-12-25 05:23:30,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2023-12-25 05:23:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 399 states have (on average 1.636591478696742) internal successors, (653), 416 states have internal predecessors, (653), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 846 transitions. [2023-12-25 05:23:30,267 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 846 transitions. Word has length 62 [2023-12-25 05:23:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:30,267 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 846 transitions. [2023-12-25 05:23:30,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:30,267 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 846 transitions. [2023-12-25 05:23:30,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-25 05:23:30,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:30,268 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:30,290 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 (14)] Ended with exit code 0 [2023-12-25 05:23:30,472 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 [2023-12-25 05:23:30,473 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:30,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:30,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1228556623, now seen corresponding path program 1 times [2023-12-25 05:23:30,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:30,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [433476970] [2023-12-25 05:23:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:30,474 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 [2023-12-25 05:23:30,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:30,475 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) [2023-12-25 05:23:30,483 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 [2023-12-25 05:23:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:30,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:23:30,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:30,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:30,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:30,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [433476970] [2023-12-25 05:23:30,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [433476970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:30,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:30,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:23:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707854610] [2023-12-25 05:23:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:30,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:23:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:23:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:30,752 INFO L87 Difference]: Start difference. First operand 523 states and 846 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:30,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:30,960 INFO L93 Difference]: Finished difference Result 1019 states and 1660 transitions. [2023-12-25 05:23:30,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:23:30,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2023-12-25 05:23:30,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:30,964 INFO L225 Difference]: With dead ends: 1019 [2023-12-25 05:23:30,964 INFO L226 Difference]: Without dead ends: 527 [2023-12-25 05:23:30,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:23:30,967 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 40 mSDsluCounter, 4706 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5495 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 [2023-12-25 05:23:30,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5495 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:23:30,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-12-25 05:23:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 525. [2023-12-25 05:23:30,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 401 states have (on average 1.6309226932668328) internal successors, (654), 418 states have internal predecessors, (654), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-25 05:23:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 847 transitions. [2023-12-25 05:23:30,980 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 847 transitions. Word has length 63 [2023-12-25 05:23:30,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:30,980 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 847 transitions. [2023-12-25 05:23:30,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-25 05:23:30,981 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 847 transitions. [2023-12-25 05:23:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-25 05:23:30,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:30,981 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:30,986 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 (15)] Ended with exit code 0 [2023-12-25 05:23:31,186 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 [2023-12-25 05:23:31,186 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:31,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:31,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1258989996, now seen corresponding path program 1 times [2023-12-25 05:23:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910582711] [2023-12-25 05:23:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:31,187 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 [2023-12-25 05:23:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:31,188 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) [2023-12-25 05:23:31,210 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 [2023-12-25 05:23:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:31,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:23:31,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 05:23:31,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:31,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:31,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910582711] [2023-12-25 05:23:31,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910582711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:31,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:31,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 05:23:31,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770906885] [2023-12-25 05:23:31,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:31,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 05:23:31,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:31,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 05:23:31,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:23:31,521 INFO L87 Difference]: Start difference. First operand 525 states and 847 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:31,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:31,693 INFO L93 Difference]: Finished difference Result 1490 states and 2447 transitions. [2023-12-25 05:23:31,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 05:23:31,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2023-12-25 05:23:31,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:31,700 INFO L225 Difference]: With dead ends: 1490 [2023-12-25 05:23:31,700 INFO L226 Difference]: Without dead ends: 1002 [2023-12-25 05:23:31,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 05:23:31,702 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 756 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:31,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1668 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:23:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-12-25 05:23:31,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 939. [2023-12-25 05:23:31,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 723 states have (on average 1.6473029045643153) internal successors, (1191), 749 states have internal predecessors, (1191), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2023-12-25 05:23:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1536 transitions. [2023-12-25 05:23:31,731 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1536 transitions. Word has length 64 [2023-12-25 05:23:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:31,731 INFO L495 AbstractCegarLoop]: Abstraction has 939 states and 1536 transitions. [2023-12-25 05:23:31,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-25 05:23:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1536 transitions. [2023-12-25 05:23:31,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-25 05:23:31,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:31,733 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:23:31,738 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 [2023-12-25 05:23:31,938 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 [2023-12-25 05:23:31,939 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:31,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -422815726, now seen corresponding path program 1 times [2023-12-25 05:23:31,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:31,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010419361] [2023-12-25 05:23:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:31,940 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 [2023-12-25 05:23:31,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:31,941 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) [2023-12-25 05:23:31,943 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 [2023-12-25 05:23:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:32,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:32,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-25 05:23:32,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:32,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:32,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010419361] [2023-12-25 05:23:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010419361] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:32,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:32,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606230757] [2023-12-25 05:23:32,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:32,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:32,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:32,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:32,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:32,241 INFO L87 Difference]: Start difference. First operand 939 states and 1536 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:32,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:32,838 INFO L93 Difference]: Finished difference Result 1849 states and 3098 transitions. [2023-12-25 05:23:32,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:32,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2023-12-25 05:23:32,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:32,844 INFO L225 Difference]: With dead ends: 1849 [2023-12-25 05:23:32,844 INFO L226 Difference]: Without dead ends: 947 [2023-12-25 05:23:32,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:32,848 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 762 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:32,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1991 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:23:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-12-25 05:23:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 947. [2023-12-25 05:23:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 729 states have (on average 1.6419753086419753) internal successors, (1197), 755 states have internal predecessors, (1197), 170 states have call successors, (170), 49 states have call predecessors, (170), 47 states have return successors, (177), 157 states have call predecessors, (177), 168 states have call successors, (177) [2023-12-25 05:23:32,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1544 transitions. [2023-12-25 05:23:32,884 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1544 transitions. Word has length 115 [2023-12-25 05:23:32,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:32,884 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1544 transitions. [2023-12-25 05:23:32,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1544 transitions. [2023-12-25 05:23:32,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-25 05:23:32,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:32,887 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:23:32,893 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 (17)] Ended with exit code 0 [2023-12-25 05:23:33,092 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 [2023-12-25 05:23:33,093 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:33,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1210658135, now seen corresponding path program 1 times [2023-12-25 05:23:33,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:33,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495279289] [2023-12-25 05:23:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:33,094 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 [2023-12-25 05:23:33,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:33,095 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) [2023-12-25 05:23:33,096 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 [2023-12-25 05:23:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:33,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:23:33,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-25 05:23:33,415 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:33,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:33,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495279289] [2023-12-25 05:23:33,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495279289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:33,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:33,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:23:33,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606331410] [2023-12-25 05:23:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:33,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:23:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:23:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:33,416 INFO L87 Difference]: Start difference. First operand 947 states and 1544 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-12-25 05:23:33,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:33,879 INFO L93 Difference]: Finished difference Result 2184 states and 3535 transitions. [2023-12-25 05:23:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:23:33,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 117 [2023-12-25 05:23:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:33,886 INFO L225 Difference]: With dead ends: 2184 [2023-12-25 05:23:33,886 INFO L226 Difference]: Without dead ends: 1274 [2023-12-25 05:23:33,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:33,891 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 601 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:33,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 3842 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 05:23:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2023-12-25 05:23:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1268. [2023-12-25 05:23:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 961 states have (on average 1.5796045785639958) internal successors, (1518), 984 states have internal predecessors, (1518), 231 states have call successors, (231), 75 states have call predecessors, (231), 75 states have return successors, (265), 222 states have call predecessors, (265), 227 states have call successors, (265) [2023-12-25 05:23:33,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 2014 transitions. [2023-12-25 05:23:33,936 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 2014 transitions. Word has length 117 [2023-12-25 05:23:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:33,936 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 2014 transitions. [2023-12-25 05:23:33,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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) [2023-12-25 05:23:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 2014 transitions. [2023-12-25 05:23:33,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-25 05:23:33,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:33,939 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-25 05:23:33,960 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 (18)] Ended with exit code 0 [2023-12-25 05:23:34,160 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 [2023-12-25 05:23:34,161 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:34,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:34,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1167678982, now seen corresponding path program 1 times [2023-12-25 05:23:34,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:34,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752921357] [2023-12-25 05:23:34,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:34,162 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 [2023-12-25 05:23:34,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:34,163 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) [2023-12-25 05:23:34,164 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 [2023-12-25 05:23:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:34,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:34,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-25 05:23:34,468 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:34,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:34,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752921357] [2023-12-25 05:23:34,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752921357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:34,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:34,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:34,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969312919] [2023-12-25 05:23:34,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:34,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:34,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:34,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:34,470 INFO L87 Difference]: Start difference. First operand 1268 states and 2014 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:35,100 INFO L93 Difference]: Finished difference Result 2519 states and 4119 transitions. [2023-12-25 05:23:35,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2023-12-25 05:23:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:35,107 INFO L225 Difference]: With dead ends: 2519 [2023-12-25 05:23:35,107 INFO L226 Difference]: Without dead ends: 1288 [2023-12-25 05:23:35,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:35,113 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 773 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:35,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 1992 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:35,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2023-12-25 05:23:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1288. [2023-12-25 05:23:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 977 states have (on average 1.570112589559877) internal successors, (1534), 1000 states have internal predecessors, (1534), 231 states have call successors, (231), 79 states have call predecessors, (231), 79 states have return successors, (269), 222 states have call predecessors, (269), 227 states have call successors, (269) [2023-12-25 05:23:35,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 2034 transitions. [2023-12-25 05:23:35,154 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 2034 transitions. Word has length 118 [2023-12-25 05:23:35,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:35,154 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 2034 transitions. [2023-12-25 05:23:35,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 2034 transitions. [2023-12-25 05:23:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-25 05:23:35,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:35,156 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-25 05:23:35,178 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 [2023-12-25 05:23:35,362 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 [2023-12-25 05:23:35,362 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:35,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:35,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1361315058, now seen corresponding path program 1 times [2023-12-25 05:23:35,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:35,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826523666] [2023-12-25 05:23:35,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:35,364 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 [2023-12-25 05:23:35,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:35,366 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) [2023-12-25 05:23:35,369 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 [2023-12-25 05:23:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:35,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:35,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:23:35,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:35,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826523666] [2023-12-25 05:23:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826523666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:35,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768837797] [2023-12-25 05:23:35,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:35,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:35,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:35,678 INFO L87 Difference]: Start difference. First operand 1288 states and 2034 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:36,310 INFO L93 Difference]: Finished difference Result 2563 states and 4159 transitions. [2023-12-25 05:23:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-25 05:23:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:36,317 INFO L225 Difference]: With dead ends: 2563 [2023-12-25 05:23:36,317 INFO L226 Difference]: Without dead ends: 1312 [2023-12-25 05:23:36,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:36,322 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 769 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:36,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1992 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-25 05:23:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2023-12-25 05:23:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2023-12-25 05:23:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 997 states have (on average 1.5586760280842527) internal successors, (1554), 1020 states have internal predecessors, (1554), 231 states have call successors, (231), 83 states have call predecessors, (231), 83 states have return successors, (273), 222 states have call predecessors, (273), 227 states have call successors, (273) [2023-12-25 05:23:36,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 2058 transitions. [2023-12-25 05:23:36,382 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 2058 transitions. Word has length 121 [2023-12-25 05:23:36,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:36,382 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 2058 transitions. [2023-12-25 05:23:36,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:36,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 2058 transitions. [2023-12-25 05:23:36,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-25 05:23:36,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:36,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-25 05:23:36,398 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 [2023-12-25 05:23:36,599 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 [2023-12-25 05:23:36,599 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:36,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:36,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2095594514, now seen corresponding path program 1 times [2023-12-25 05:23:36,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:36,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749600893] [2023-12-25 05:23:36,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:36,600 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 [2023-12-25 05:23:36,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:36,601 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) [2023-12-25 05:23:36,603 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 [2023-12-25 05:23:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:36,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 05:23:36,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-25 05:23:36,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:36,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:36,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749600893] [2023-12-25 05:23:36,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749600893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:36,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:36,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 05:23:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958620653] [2023-12-25 05:23:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:36,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:23:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:23:36,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:23:36,924 INFO L87 Difference]: Start difference. First operand 1312 states and 2058 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:37,500 INFO L93 Difference]: Finished difference Result 2615 states and 4207 transitions. [2023-12-25 05:23:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:23:37,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 124 [2023-12-25 05:23:37,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:37,507 INFO L225 Difference]: With dead ends: 2615 [2023-12-25 05:23:37,507 INFO L226 Difference]: Without dead ends: 1340 [2023-12-25 05:23:37,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:23:37,512 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 771 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:37,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1992 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-25 05:23:37,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2023-12-25 05:23:37,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2023-12-25 05:23:37,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1021 states have (on average 1.5455435847208618) internal successors, (1578), 1044 states have internal predecessors, (1578), 231 states have call successors, (231), 87 states have call predecessors, (231), 87 states have return successors, (277), 222 states have call predecessors, (277), 227 states have call successors, (277) [2023-12-25 05:23:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 2086 transitions. [2023-12-25 05:23:37,549 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 2086 transitions. Word has length 124 [2023-12-25 05:23:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:37,549 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 2086 transitions. [2023-12-25 05:23:37,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-25 05:23:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 2086 transitions. [2023-12-25 05:23:37,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-25 05:23:37,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:37,552 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-12-25 05:23:37,574 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 [2023-12-25 05:23:37,757 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 [2023-12-25 05:23:37,758 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:37,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:37,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1467125750, now seen corresponding path program 1 times [2023-12-25 05:23:37,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:37,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190856019] [2023-12-25 05:23:37,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:37,759 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 [2023-12-25 05:23:37,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:37,760 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) [2023-12-25 05:23:37,792 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 [2023-12-25 05:23:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:37,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:23:37,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 38 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:38,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:23:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:23:38,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190856019] [2023-12-25 05:23:38,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1190856019] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:23:38,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:23:38,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-25 05:23:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661105961] [2023-12-25 05:23:38,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:23:38,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-25 05:23:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-25 05:23:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:23:38,555 INFO L87 Difference]: Start difference. First operand 1340 states and 2086 transitions. Second operand has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:23:45,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:45,256 INFO L93 Difference]: Finished difference Result 4257 states and 6813 transitions. [2023-12-25 05:23:45,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:23:45,256 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) Word has length 127 [2023-12-25 05:23:45,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:45,268 INFO L225 Difference]: With dead ends: 4257 [2023-12-25 05:23:45,269 INFO L226 Difference]: Without dead ends: 2954 [2023-12-25 05:23:45,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=738, Unknown=0, NotChecked=0, Total=930 [2023-12-25 05:23:45,275 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 3491 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 10996 mSolverCounterSat, 1239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3571 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 12235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1239 IncrementalHoareTripleChecker+Valid, 10996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:45,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3571 Valid, 5534 Invalid, 12235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1239 Valid, 10996 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-12-25 05:23:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2023-12-25 05:23:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2792. [2023-12-25 05:23:45,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2094 states have (on average 1.5377268385864375) internal successors, (3220), 2151 states have internal predecessors, (3220), 498 states have call successors, (498), 171 states have call predecessors, (498), 199 states have return successors, (680), 502 states have call predecessors, (680), 490 states have call successors, (680) [2023-12-25 05:23:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 4398 transitions. [2023-12-25 05:23:45,397 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 4398 transitions. Word has length 127 [2023-12-25 05:23:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:45,398 INFO L495 AbstractCegarLoop]: Abstraction has 2792 states and 4398 transitions. [2023-12-25 05:23:45,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5) internal successors, (136), 14 states have internal predecessors, (136), 8 states have call successors, (32), 6 states have call predecessors, (32), 12 states have return successors, (33), 12 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:23:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 4398 transitions. [2023-12-25 05:23:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-25 05:23:45,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:45,405 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-12-25 05:23:45,426 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 [2023-12-25 05:23:45,612 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 [2023-12-25 05:23:45,613 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:45,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:45,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2142437123, now seen corresponding path program 1 times [2023-12-25 05:23:45,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:45,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584098297] [2023-12-25 05:23:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:45,614 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 [2023-12-25 05:23:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:45,615 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) [2023-12-25 05:23:45,616 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 [2023-12-25 05:23:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:45,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:23:45,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-25 05:23:45,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:45,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:45,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [584098297] [2023-12-25 05:23:45,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [584098297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:45,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:45,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:23:45,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638576265] [2023-12-25 05:23:45,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:45,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:23:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:45,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:23:45,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:45,923 INFO L87 Difference]: Start difference. First operand 2792 states and 4398 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:23:46,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:46,232 INFO L93 Difference]: Finished difference Result 5428 states and 8575 transitions. [2023-12-25 05:23:46,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-25 05:23:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 130 [2023-12-25 05:23:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:46,247 INFO L225 Difference]: With dead ends: 5428 [2023-12-25 05:23:46,247 INFO L226 Difference]: Without dead ends: 2664 [2023-12-25 05:23:46,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:23:46,255 INFO L413 NwaCegarLoop]: 789 mSDtfsCounter, 52 mSDsluCounter, 4703 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 5492 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 [2023-12-25 05:23:46,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 5492 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 05:23:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2664 states. [2023-12-25 05:23:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2664 to 2656. [2023-12-25 05:23:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2656 states, 1992 states have (on average 1.5451807228915662) internal successors, (3078), 2048 states have internal predecessors, (3078), 478 states have call successors, (478), 159 states have call predecessors, (478), 185 states have return successors, (632), 481 states have call predecessors, (632), 470 states have call successors, (632) [2023-12-25 05:23:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2656 states to 2656 states and 4188 transitions. [2023-12-25 05:23:46,403 INFO L78 Accepts]: Start accepts. Automaton has 2656 states and 4188 transitions. Word has length 130 [2023-12-25 05:23:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:46,403 INFO L495 AbstractCegarLoop]: Abstraction has 2656 states and 4188 transitions. [2023-12-25 05:23:46,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-25 05:23:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2656 states and 4188 transitions. [2023-12-25 05:23:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-25 05:23:46,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:46,406 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:46,430 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 [2023-12-25 05:23:46,613 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 [2023-12-25 05:23:46,614 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:46,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:46,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1524151994, now seen corresponding path program 1 times [2023-12-25 05:23:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434993369] [2023-12-25 05:23:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:46,615 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 [2023-12-25 05:23:46,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:46,626 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) [2023-12-25 05:23:46,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-25 05:23:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:46,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:23:46,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-25 05:23:47,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:23:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-25 05:23:47,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:47,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434993369] [2023-12-25 05:23:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434993369] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:23:47,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:23:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-25 05:23:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195590976] [2023-12-25 05:23:47,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:23:47,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-25 05:23:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:47,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-25 05:23:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:23:47,336 INFO L87 Difference]: Start difference. First operand 2656 states and 4188 transitions. Second operand has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:23:51,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:51,800 INFO L93 Difference]: Finished difference Result 6739 states and 10838 transitions. [2023-12-25 05:23:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:23:51,801 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) Word has length 134 [2023-12-25 05:23:51,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:51,830 INFO L225 Difference]: With dead ends: 6739 [2023-12-25 05:23:51,830 INFO L226 Difference]: Without dead ends: 4117 [2023-12-25 05:23:51,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:23:51,842 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 2650 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 6461 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 7328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 6461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:51,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2721 Valid, 3298 Invalid, 7328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 6461 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:23:51,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2023-12-25 05:23:52,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3971. [2023-12-25 05:23:52,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3971 states, 2966 states have (on average 1.5445043830074174) internal successors, (4581), 3047 states have internal predecessors, (4581), 725 states have call successors, (725), 231 states have call predecessors, (725), 279 states have return successors, (973), 744 states have call predecessors, (973), 713 states have call successors, (973) [2023-12-25 05:23:52,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 6279 transitions. [2023-12-25 05:23:52,063 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 6279 transitions. Word has length 134 [2023-12-25 05:23:52,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:52,063 INFO L495 AbstractCegarLoop]: Abstraction has 3971 states and 6279 transitions. [2023-12-25 05:23:52,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.857142857142858) internal successors, (138), 12 states have internal predecessors, (138), 8 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (33), 10 states have call predecessors, (33), 8 states have call successors, (33) [2023-12-25 05:23:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 6279 transitions. [2023-12-25 05:23:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-25 05:23:52,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:52,065 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:52,071 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 (24)] Ended with exit code 0 [2023-12-25 05:23:52,271 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 [2023-12-25 05:23:52,272 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:52,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash -9272880, now seen corresponding path program 1 times [2023-12-25 05:23:52,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:52,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161578888] [2023-12-25 05:23:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:52,273 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 [2023-12-25 05:23:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:52,274 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) [2023-12-25 05:23:52,275 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 [2023-12-25 05:23:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:52,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:23:52,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:23:52,649 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:23:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-25 05:23:52,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:52,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161578888] [2023-12-25 05:23:52,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161578888] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:23:52,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:23:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-12-25 05:23:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244955665] [2023-12-25 05:23:52,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:23:52,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:23:52,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:52,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:23:52,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:23:52,830 INFO L87 Difference]: Start difference. First operand 3971 states and 6279 transitions. Second operand has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-25 05:23:57,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:23:57,083 INFO L93 Difference]: Finished difference Result 15871 states and 25898 transitions. [2023-12-25 05:23:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-25 05:23:57,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) Word has length 135 [2023-12-25 05:23:57,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:23:57,150 INFO L225 Difference]: With dead ends: 15871 [2023-12-25 05:23:57,150 INFO L226 Difference]: Without dead ends: 11922 [2023-12-25 05:23:57,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-25 05:23:57,173 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 4208 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 5650 mSolverCounterSat, 1283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 6933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1283 IncrementalHoareTripleChecker+Valid, 5650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:23:57,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 2006 Invalid, 6933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1283 Valid, 5650 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-25 05:23:57,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11922 states. [2023-12-25 05:23:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11922 to 10618. [2023-12-25 05:23:57,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10618 states, 7876 states have (on average 1.5227272727272727) internal successors, (11993), 8110 states have internal predecessors, (11993), 1963 states have call successors, (1963), 669 states have call predecessors, (1963), 778 states have return successors, (2803), 1988 states have call predecessors, (2803), 1933 states have call successors, (2803) [2023-12-25 05:23:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10618 states to 10618 states and 16759 transitions. [2023-12-25 05:23:57,831 INFO L78 Accepts]: Start accepts. Automaton has 10618 states and 16759 transitions. Word has length 135 [2023-12-25 05:23:57,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:23:57,831 INFO L495 AbstractCegarLoop]: Abstraction has 10618 states and 16759 transitions. [2023-12-25 05:23:57,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.0) internal successors, (121), 11 states have internal predecessors, (121), 6 states have call successors, (28), 5 states have call predecessors, (28), 7 states have return successors, (27), 7 states have call predecessors, (27), 6 states have call successors, (27) [2023-12-25 05:23:57,832 INFO L276 IsEmpty]: Start isEmpty. Operand 10618 states and 16759 transitions. [2023-12-25 05:23:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:23:57,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:23:57,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:23:57,844 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 [2023-12-25 05:23:58,043 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 [2023-12-25 05:23:58,045 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:23:58,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:23:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1847622585, now seen corresponding path program 1 times [2023-12-25 05:23:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:23:58,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735926142] [2023-12-25 05:23:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:23:58,047 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 [2023-12-25 05:23:58,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:23:58,048 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) [2023-12-25 05:23:58,083 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 [2023-12-25 05:23:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:23:58,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:23:58,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:23:58,443 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-25 05:23:58,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:23:58,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:23:58,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735926142] [2023-12-25 05:23:58,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735926142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:23:58,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:23:58,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:23:58,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680788222] [2023-12-25 05:23:58,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:23:58,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:23:58,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:23:58,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:23:58,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:23:58,445 INFO L87 Difference]: Start difference. First operand 10618 states and 16759 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:24:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:03,717 INFO L93 Difference]: Finished difference Result 29918 states and 49476 transitions. [2023-12-25 05:24:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-25 05:24:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 137 [2023-12-25 05:24:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:03,823 INFO L225 Difference]: With dead ends: 29918 [2023-12-25 05:24:03,823 INFO L226 Difference]: Without dead ends: 19316 [2023-12-25 05:24:03,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-25 05:24:03,875 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 2105 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 6109 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 6656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 6109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:03,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2239 Valid, 2104 Invalid, 6656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 6109 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-25 05:24:03,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19316 states. [2023-12-25 05:24:05,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19316 to 18518. [2023-12-25 05:24:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18518 states, 13112 states have (on average 1.5104484441732764) internal successors, (19805), 13746 states have internal predecessors, (19805), 4143 states have call successors, (4143), 987 states have call predecessors, (4143), 1262 states have return successors, (6406), 4288 states have call predecessors, (6406), 4098 states have call successors, (6406) [2023-12-25 05:24:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18518 states to 18518 states and 30354 transitions. [2023-12-25 05:24:05,606 INFO L78 Accepts]: Start accepts. Automaton has 18518 states and 30354 transitions. Word has length 137 [2023-12-25 05:24:05,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:05,606 INFO L495 AbstractCegarLoop]: Abstraction has 18518 states and 30354 transitions. [2023-12-25 05:24:05,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 6 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:24:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 18518 states and 30354 transitions. [2023-12-25 05:24:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-25 05:24:05,610 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:05,610 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:05,619 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 [2023-12-25 05:24:05,817 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 [2023-12-25 05:24:05,817 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:05,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash 776831142, now seen corresponding path program 1 times [2023-12-25 05:24:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:05,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515712934] [2023-12-25 05:24:05,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:05,818 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 [2023-12-25 05:24:05,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:05,819 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) [2023-12-25 05:24:05,852 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 [2023-12-25 05:24:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:06,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:24:06,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-25 05:24:06,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:06,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:06,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515712934] [2023-12-25 05:24:06,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515712934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:06,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:06,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-25 05:24:06,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410104587] [2023-12-25 05:24:06,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:06,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-25 05:24:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-25 05:24:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:24:06,198 INFO L87 Difference]: Start difference. First operand 18518 states and 30354 transitions. Second operand has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:24:12,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:12,530 INFO L93 Difference]: Finished difference Result 33329 states and 54941 transitions. [2023-12-25 05:24:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:24:12,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) Word has length 137 [2023-12-25 05:24:12,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:12,636 INFO L225 Difference]: With dead ends: 33329 [2023-12-25 05:24:12,636 INFO L226 Difference]: Without dead ends: 18904 [2023-12-25 05:24:12,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-12-25 05:24:12,722 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 2664 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 7582 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 3583 SdHoareTripleChecker+Invalid, 8258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 7582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:12,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 3583 Invalid, 8258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 7582 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-25 05:24:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18904 states. [2023-12-25 05:24:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18904 to 18524. [2023-12-25 05:24:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18524 states, 13124 states have (on average 1.5086101798232245) internal successors, (19799), 13758 states have internal predecessors, (19799), 4131 states have call successors, (4131), 981 states have call predecessors, (4131), 1268 states have return successors, (6415), 4288 states have call predecessors, (6415), 4086 states have call successors, (6415) [2023-12-25 05:24:14,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18524 states to 18524 states and 30345 transitions. [2023-12-25 05:24:14,036 INFO L78 Accepts]: Start accepts. Automaton has 18524 states and 30345 transitions. Word has length 137 [2023-12-25 05:24:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:14,037 INFO L495 AbstractCegarLoop]: Abstraction has 18524 states and 30345 transitions. [2023-12-25 05:24:14,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.2) internal successors, (92), 9 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 8 states have return successors, (18), 8 states have call predecessors, (18), 6 states have call successors, (18) [2023-12-25 05:24:14,037 INFO L276 IsEmpty]: Start isEmpty. Operand 18524 states and 30345 transitions. [2023-12-25 05:24:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-25 05:24:14,040 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:14,040 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:14,055 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 [2023-12-25 05:24:14,245 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 [2023-12-25 05:24:14,246 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:14,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:14,246 INFO L85 PathProgramCache]: Analyzing trace with hash -176962285, now seen corresponding path program 1 times [2023-12-25 05:24:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:14,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [550886799] [2023-12-25 05:24:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:14,247 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 [2023-12-25 05:24:14,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:14,248 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) [2023-12-25 05:24:14,288 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 [2023-12-25 05:24:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:14,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:24:14,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:24:14,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:14,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:14,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [550886799] [2023-12-25 05:24:14,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [550886799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:14,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:14,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:24:14,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985803151] [2023-12-25 05:24:14,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:14,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:24:14,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:14,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:24:14,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:24:14,592 INFO L87 Difference]: Start difference. First operand 18524 states and 30345 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-25 05:24:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:20,649 INFO L93 Difference]: Finished difference Result 54099 states and 91098 transitions. [2023-12-25 05:24:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-25 05:24:20,649 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 136 [2023-12-25 05:24:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:20,890 INFO L225 Difference]: With dead ends: 54099 [2023-12-25 05:24:20,890 INFO L226 Difference]: Without dead ends: 39668 [2023-12-25 05:24:20,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-12-25 05:24:20,987 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2851 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 4333 mSolverCounterSat, 606 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 4939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 606 IncrementalHoareTripleChecker+Valid, 4333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:20,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2938 Valid, 1935 Invalid, 4939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [606 Valid, 4333 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-25 05:24:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39668 states. [2023-12-25 05:24:23,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39668 to 35767. [2023-12-25 05:24:23,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35767 states, 25457 states have (on average 1.4978984169383667) internal successors, (38132), 26621 states have internal predecessors, (38132), 7706 states have call successors, (7706), 1869 states have call predecessors, (7706), 2603 states have return successors, (13017), 8112 states have call predecessors, (13017), 7625 states have call successors, (13017) [2023-12-25 05:24:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35767 states to 35767 states and 58855 transitions. [2023-12-25 05:24:23,865 INFO L78 Accepts]: Start accepts. Automaton has 35767 states and 58855 transitions. Word has length 136 [2023-12-25 05:24:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:23,865 INFO L495 AbstractCegarLoop]: Abstraction has 35767 states and 58855 transitions. [2023-12-25 05:24:23,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 6 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-25 05:24:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 35767 states and 58855 transitions. [2023-12-25 05:24:23,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-25 05:24:23,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:23,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:23,880 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 (28)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:24,076 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 [2023-12-25 05:24:24,077 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:24,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:24,077 INFO L85 PathProgramCache]: Analyzing trace with hash 888797632, now seen corresponding path program 1 times [2023-12-25 05:24:24,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:24,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683963453] [2023-12-25 05:24:24,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:24,078 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 [2023-12-25 05:24:24,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:24,079 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) [2023-12-25 05:24:24,080 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 [2023-12-25 05:24:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:24,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-25 05:24:24,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:24:24,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:24,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:24,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683963453] [2023-12-25 05:24:24,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683963453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:24,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:24,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:24:24,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627230540] [2023-12-25 05:24:24,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:24,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:24:24,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:24,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:24:24,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:24:24,475 INFO L87 Difference]: Start difference. First operand 35767 states and 58855 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-25 05:24:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:31,932 INFO L93 Difference]: Finished difference Result 75604 states and 127337 transitions. [2023-12-25 05:24:31,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-25 05:24:31,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) Word has length 140 [2023-12-25 05:24:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:32,156 INFO L225 Difference]: With dead ends: 75604 [2023-12-25 05:24:32,157 INFO L226 Difference]: Without dead ends: 43786 [2023-12-25 05:24:32,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:24:32,316 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1971 mSDsluCounter, 1617 mSDsCounter, 0 mSdLazyCounter, 5610 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 1982 SdHoareTripleChecker+Invalid, 6110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 5610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:32,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 1982 Invalid, 6110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 5610 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-25 05:24:32,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43786 states. [2023-12-25 05:24:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43786 to 38899. [2023-12-25 05:24:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38899 states, 27737 states have (on average 1.4791433824854887) internal successors, (41027), 29042 states have internal predecessors, (41027), 8174 states have call successors, (8174), 2169 states have call predecessors, (8174), 2987 states have return successors, (13866), 8523 states have call predecessors, (13866), 8093 states have call successors, (13866) [2023-12-25 05:24:35,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38899 states to 38899 states and 63067 transitions. [2023-12-25 05:24:35,847 INFO L78 Accepts]: Start accepts. Automaton has 38899 states and 63067 transitions. Word has length 140 [2023-12-25 05:24:35,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:35,848 INFO L495 AbstractCegarLoop]: Abstraction has 38899 states and 63067 transitions. [2023-12-25 05:24:35,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (17), 6 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-25 05:24:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 38899 states and 63067 transitions. [2023-12-25 05:24:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-25 05:24:35,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:35,867 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:35,888 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 [2023-12-25 05:24:36,074 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 [2023-12-25 05:24:36,074 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:36,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1552078005, now seen corresponding path program 1 times [2023-12-25 05:24:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778838317] [2023-12-25 05:24:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:36,075 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 [2023-12-25 05:24:36,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:36,076 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) [2023-12-25 05:24:36,078 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 [2023-12-25 05:24:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:36,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-25 05:24:36,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-25 05:24:36,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:36,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:36,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778838317] [2023-12-25 05:24:36,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778838317] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:36,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:36,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-25 05:24:36,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247069186] [2023-12-25 05:24:36,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:36,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 05:24:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:36,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 05:24:36,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 05:24:36,348 INFO L87 Difference]: Start difference. First operand 38899 states and 63067 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:24:40,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:40,002 INFO L93 Difference]: Finished difference Result 76252 states and 125404 transitions. [2023-12-25 05:24:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 05:24:40,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 147 [2023-12-25 05:24:40,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:40,204 INFO L225 Difference]: With dead ends: 76252 [2023-12-25 05:24:40,204 INFO L226 Difference]: Without dead ends: 38899 [2023-12-25 05:24:40,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:24:40,485 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 401 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:40,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 2924 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:24:40,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38899 states. [2023-12-25 05:24:43,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38899 to 38899. [2023-12-25 05:24:43,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38899 states, 27737 states have (on average 1.4616216605977574) internal successors, (40541), 29042 states have internal predecessors, (40541), 8174 states have call successors, (8174), 2169 states have call predecessors, (8174), 2987 states have return successors, (13866), 8523 states have call predecessors, (13866), 8093 states have call successors, (13866) [2023-12-25 05:24:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38899 states to 38899 states and 62581 transitions. [2023-12-25 05:24:43,480 INFO L78 Accepts]: Start accepts. Automaton has 38899 states and 62581 transitions. Word has length 147 [2023-12-25 05:24:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:43,482 INFO L495 AbstractCegarLoop]: Abstraction has 38899 states and 62581 transitions. [2023-12-25 05:24:43,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-25 05:24:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 38899 states and 62581 transitions. [2023-12-25 05:24:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-25 05:24:43,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:43,485 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:43,499 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 [2023-12-25 05:24:43,691 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 [2023-12-25 05:24:43,692 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:43,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash -304587335, now seen corresponding path program 1 times [2023-12-25 05:24:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:43,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912695281] [2023-12-25 05:24:43,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:43,693 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 [2023-12-25 05:24:43,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:43,694 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) [2023-12-25 05:24:43,695 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 [2023-12-25 05:24:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:43,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-25 05:24:43,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-25 05:24:44,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:44,026 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:44,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912695281] [2023-12-25 05:24:44,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912695281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:44,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:44,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:24:44,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310088284] [2023-12-25 05:24:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:44,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:24:44,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:24:44,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:24:44,027 INFO L87 Difference]: Start difference. First operand 38899 states and 62581 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-25 05:24:52,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:24:52,907 INFO L93 Difference]: Finished difference Result 96995 states and 158272 transitions. [2023-12-25 05:24:52,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-25 05:24:52,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 152 [2023-12-25 05:24:52,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:24:53,201 INFO L225 Difference]: With dead ends: 96995 [2023-12-25 05:24:53,202 INFO L226 Difference]: Without dead ends: 63070 [2023-12-25 05:24:53,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-12-25 05:24:53,366 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 2460 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 6273 mSolverCounterSat, 640 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2559 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 6913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 6273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:24:53,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2559 Valid, 2057 Invalid, 6913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 6273 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-25 05:24:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63070 states. [2023-12-25 05:24:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63070 to 58543. [2023-12-25 05:24:57,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58543 states, 41978 states have (on average 1.451522225927867) internal successors, (60932), 43927 states have internal predecessors, (60932), 11903 states have call successors, (11903), 3309 states have call predecessors, (11903), 4661 states have return successors, (20360), 12474 states have call predecessors, (20360), 11822 states have call successors, (20360) [2023-12-25 05:24:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58543 states to 58543 states and 93195 transitions. [2023-12-25 05:24:57,973 INFO L78 Accepts]: Start accepts. Automaton has 58543 states and 93195 transitions. Word has length 152 [2023-12-25 05:24:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:24:57,974 INFO L495 AbstractCegarLoop]: Abstraction has 58543 states and 93195 transitions. [2023-12-25 05:24:57,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-25 05:24:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 58543 states and 93195 transitions. [2023-12-25 05:24:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:24:57,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:24:57,977 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:24:58,002 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 (31)] Forceful destruction successful, exit code 0 [2023-12-25 05:24:58,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 [2023-12-25 05:24:58,184 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:24:58,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:24:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1290206560, now seen corresponding path program 1 times [2023-12-25 05:24:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:24:58,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919694516] [2023-12-25 05:24:58,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:24:58,185 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 [2023-12-25 05:24:58,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:24:58,186 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-12-25 05:24:58,187 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 (32)] Waiting until timeout for monitored process [2023-12-25 05:24:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:24:58,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-25 05:24:58,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:24:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-25 05:24:58,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:24:58,785 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:24:58,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919694516] [2023-12-25 05:24:58,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919694516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:24:58,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:24:58,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-25 05:24:58,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199180633] [2023-12-25 05:24:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:24:58,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-25 05:24:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:24:58,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-25 05:24:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-25 05:24:58,787 INFO L87 Difference]: Start difference. First operand 58543 states and 93195 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:25:06,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:06,598 INFO L93 Difference]: Finished difference Result 115041 states and 184808 transitions. [2023-12-25 05:25:06,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-25 05:25:06,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 156 [2023-12-25 05:25:06,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:06,947 INFO L225 Difference]: With dead ends: 115041 [2023-12-25 05:25:06,947 INFO L226 Difference]: Without dead ends: 61359 [2023-12-25 05:25:07,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-12-25 05:25:07,204 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 1637 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 4497 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1727 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 4880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:07,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1727 Valid, 1806 Invalid, 4880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 4497 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-25 05:25:07,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61359 states. [2023-12-25 05:25:11,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61359 to 56799. [2023-12-25 05:25:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56799 states, 40814 states have (on average 1.4536678590679668) internal successors, (59330), 42700 states have internal predecessors, (59330), 11521 states have call successors, (11521), 3240 states have call predecessors, (11521), 4463 states have return successors, (19022), 12026 states have call predecessors, (19022), 11449 states have call successors, (19022) [2023-12-25 05:25:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56799 states to 56799 states and 89873 transitions. [2023-12-25 05:25:11,812 INFO L78 Accepts]: Start accepts. Automaton has 56799 states and 89873 transitions. Word has length 156 [2023-12-25 05:25:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:11,813 INFO L495 AbstractCegarLoop]: Abstraction has 56799 states and 89873 transitions. [2023-12-25 05:25:11,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (20), 4 states have call predecessors, (20), 5 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:25:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 56799 states and 89873 transitions. [2023-12-25 05:25:11,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-25 05:25:11,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:11,816 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:11,823 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 (32)] Ended with exit code 0 [2023-12-25 05:25:12,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 [2023-12-25 05:25:12,023 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:12,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:12,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1637352732, now seen corresponding path program 1 times [2023-12-25 05:25:12,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:12,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882221541] [2023-12-25 05:25:12,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:12,024 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 [2023-12-25 05:25:12,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:12,025 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-12-25 05:25:12,026 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 (33)] Waiting until timeout for monitored process [2023-12-25 05:25:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:12,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-25 05:25:12,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-25 05:25:12,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:25:12,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:12,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882221541] [2023-12-25 05:25:12,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1882221541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:25:12,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:25:12,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-25 05:25:12,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305764822] [2023-12-25 05:25:12,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:25:12,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-25 05:25:12,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-25 05:25:12,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:25:12,401 INFO L87 Difference]: Start difference. First operand 56799 states and 89873 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:25:19,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:19,721 INFO L93 Difference]: Finished difference Result 111918 states and 179287 transitions. [2023-12-25 05:25:19,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-25 05:25:19,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 156 [2023-12-25 05:25:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:19,888 INFO L225 Difference]: With dead ends: 111918 [2023-12-25 05:25:19,888 INFO L226 Difference]: Without dead ends: 25012 [2023-12-25 05:25:20,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-25 05:25:20,198 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1835 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 3772 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 2237 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:20,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 2237 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3772 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-25 05:25:20,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25012 states. [2023-12-25 05:25:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25012 to 24714. [2023-12-25 05:25:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24714 states, 18311 states have (on average 1.4643656818305937) internal successors, (26814), 19066 states have internal predecessors, (26814), 4387 states have call successors, (4387), 1518 states have call predecessors, (4387), 2015 states have return successors, (6935), 4557 states have call predecessors, (6935), 4363 states have call successors, (6935) [2023-12-25 05:25:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24714 states to 24714 states and 38136 transitions. [2023-12-25 05:25:22,145 INFO L78 Accepts]: Start accepts. Automaton has 24714 states and 38136 transitions. Word has length 156 [2023-12-25 05:25:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:22,146 INFO L495 AbstractCegarLoop]: Abstraction has 24714 states and 38136 transitions. [2023-12-25 05:25:22,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-25 05:25:22,146 INFO L276 IsEmpty]: Start isEmpty. Operand 24714 states and 38136 transitions. [2023-12-25 05:25:22,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2023-12-25 05:25:22,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:22,155 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:22,162 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 (33)] Forceful destruction successful, exit code 0 [2023-12-25 05:25:22,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 [2023-12-25 05:25:22,362 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:22,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1221698214, now seen corresponding path program 1 times [2023-12-25 05:25:22,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:22,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771671409] [2023-12-25 05:25:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:22,363 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 [2023-12-25 05:25:22,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:22,366 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-12-25 05:25:22,367 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 (34)] Waiting until timeout for monitored process [2023-12-25 05:25:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:23,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-25 05:25:23,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 1181 trivial. 0 not checked. [2023-12-25 05:25:23,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:25:23,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:23,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771671409] [2023-12-25 05:25:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771671409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:25:23,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:25:23,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-25 05:25:23,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904505667] [2023-12-25 05:25:23,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:25:23,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:25:23,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:25:23,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:25:23,079 INFO L87 Difference]: Start difference. First operand 24714 states and 38136 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-25 05:25:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:24,970 INFO L93 Difference]: Finished difference Result 49695 states and 78223 transitions. [2023-12-25 05:25:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-25 05:25:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) Word has length 491 [2023-12-25 05:25:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:25,097 INFO L225 Difference]: With dead ends: 49695 [2023-12-25 05:25:25,097 INFO L226 Difference]: Without dead ends: 26064 [2023-12-25 05:25:25,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:25:25,179 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 35 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3943 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:25,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3943 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 05:25:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26064 states. [2023-12-25 05:25:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26064 to 24969. [2023-12-25 05:25:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24969 states, 18515 states have (on average 1.4592492573588982) internal successors, (27018), 19270 states have internal predecessors, (27018), 4387 states have call successors, (4387), 1518 states have call predecessors, (4387), 2066 states have return successors, (7050), 4608 states have call predecessors, (7050), 4363 states have call successors, (7050) [2023-12-25 05:25:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24969 states to 24969 states and 38455 transitions. [2023-12-25 05:25:26,962 INFO L78 Accepts]: Start accepts. Automaton has 24969 states and 38455 transitions. Word has length 491 [2023-12-25 05:25:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:26,962 INFO L495 AbstractCegarLoop]: Abstraction has 24969 states and 38455 transitions. [2023-12-25 05:25:26,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (34), 3 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-25 05:25:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 24969 states and 38455 transitions. [2023-12-25 05:25:26,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-12-25 05:25:26,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:26,977 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:26,995 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 (34)] Ended with exit code 0 [2023-12-25 05:25:27,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /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 [2023-12-25 05:25:27,195 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:27,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash 806022303, now seen corresponding path program 1 times [2023-12-25 05:25:27,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:27,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819246492] [2023-12-25 05:25:27,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:27,196 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 [2023-12-25 05:25:27,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:27,197 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-12-25 05:25:27,230 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 (35)] Waiting until timeout for monitored process [2023-12-25 05:25:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:27,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 05:25:27,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:28,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 700 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-12-25 05:25:28,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 05:25:28,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:28,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819246492] [2023-12-25 05:25:28,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819246492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 05:25:28,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 05:25:28,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-25 05:25:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219333390] [2023-12-25 05:25:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 05:25:28,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-25 05:25:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:28,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-25 05:25:28,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-25 05:25:28,037 INFO L87 Difference]: Start difference. First operand 24969 states and 38455 transitions. Second operand has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 6 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) [2023-12-25 05:25:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:34,333 INFO L93 Difference]: Finished difference Result 69109 states and 109387 transitions. [2023-12-25 05:25:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-25 05:25:34,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 6 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) Word has length 494 [2023-12-25 05:25:34,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:34,531 INFO L225 Difference]: With dead ends: 69109 [2023-12-25 05:25:34,531 INFO L226 Difference]: Without dead ends: 43838 [2023-12-25 05:25:34,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-25 05:25:34,623 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 2861 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 4133 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 4816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 4133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:34,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 1555 Invalid, 4816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 4133 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-25 05:25:34,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43838 states. [2023-12-25 05:25:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43838 to 42727. [2023-12-25 05:25:37,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42727 states, 31377 states have (on average 1.4531344615482678) internal successors, (45595), 32631 states have internal predecessors, (45595), 7735 states have call successors, (7735), 2709 states have call predecessors, (7735), 3614 states have return successors, (13095), 8138 states have call predecessors, (13095), 7708 states have call successors, (13095) [2023-12-25 05:25:37,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42727 states to 42727 states and 66425 transitions. [2023-12-25 05:25:37,702 INFO L78 Accepts]: Start accepts. Automaton has 42727 states and 66425 transitions. Word has length 494 [2023-12-25 05:25:37,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:25:37,703 INFO L495 AbstractCegarLoop]: Abstraction has 42727 states and 66425 transitions. [2023-12-25 05:25:37,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 7 states have internal predecessors, (206), 6 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (43), 6 states have call predecessors, (43), 6 states have call successors, (43) [2023-12-25 05:25:37,703 INFO L276 IsEmpty]: Start isEmpty. Operand 42727 states and 66425 transitions. [2023-12-25 05:25:37,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 05:25:37,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:25:37,733 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:25:37,751 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 (35)] Ended with exit code 0 [2023-12-25 05:25:37,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /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 [2023-12-25 05:25:37,949 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:25:37,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:25:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -985530897, now seen corresponding path program 1 times [2023-12-25 05:25:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:25:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500837045] [2023-12-25 05:25:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:25:37,950 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 [2023-12-25 05:25:37,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:25:37,951 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-12-25 05:25:37,988 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 (36)] Waiting until timeout for monitored process [2023-12-25 05:25:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:25:38,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:25:38,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:25:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 211 proven. 8 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-12-25 05:25:38,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 05:25:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-25 05:25:39,056 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 05:25:39,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500837045] [2023-12-25 05:25:39,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500837045] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-25 05:25:39,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-25 05:25:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2023-12-25 05:25:39,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581269690] [2023-12-25 05:25:39,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-25 05:25:39,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-25 05:25:39,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 05:25:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-25 05:25:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-25 05:25:39,058 INFO L87 Difference]: Start difference. First operand 42727 states and 66425 transitions. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 6 states have call successors, (64), 5 states have call predecessors, (64), 6 states have return successors, (61), 6 states have call predecessors, (61), 6 states have call successors, (61) [2023-12-25 05:25:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 05:25:52,063 INFO L93 Difference]: Finished difference Result 156945 states and 266478 transitions. [2023-12-25 05:25:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-25 05:25:52,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 6 states have call successors, (64), 5 states have call predecessors, (64), 6 states have return successors, (61), 6 states have call predecessors, (61), 6 states have call successors, (61) Word has length 378 [2023-12-25 05:25:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 05:25:53,363 INFO L225 Difference]: With dead ends: 156945 [2023-12-25 05:25:53,364 INFO L226 Difference]: Without dead ends: 116713 [2023-12-25 05:25:53,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-25 05:25:53,677 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 2693 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 4044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-25 05:25:53,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 1585 Invalid, 4044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-25 05:25:53,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116713 states. [2023-12-25 05:26:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116713 to 113521. [2023-12-25 05:26:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113521 states, 79517 states have (on average 1.4514129054164517) internal successors, (115412), 83874 states have internal predecessors, (115412), 25248 states have call successors, (25248), 5879 states have call predecessors, (25248), 8755 states have return successors, (49414), 27115 states have call predecessors, (49414), 25205 states have call successors, (49414) [2023-12-25 05:26:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113521 states to 113521 states and 190074 transitions. [2023-12-25 05:26:03,922 INFO L78 Accepts]: Start accepts. Automaton has 113521 states and 190074 transitions. Word has length 378 [2023-12-25 05:26:03,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 05:26:03,923 INFO L495 AbstractCegarLoop]: Abstraction has 113521 states and 190074 transitions. [2023-12-25 05:26:03,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 6 states have call successors, (64), 5 states have call predecessors, (64), 6 states have return successors, (61), 6 states have call predecessors, (61), 6 states have call successors, (61) [2023-12-25 05:26:03,923 INFO L276 IsEmpty]: Start isEmpty. Operand 113521 states and 190074 transitions. [2023-12-25 05:26:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-25 05:26:03,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 05:26:03,997 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 05:26:04,028 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 (36)] Ended with exit code 0 [2023-12-25 05:26:04,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /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 [2023-12-25 05:26:04,198 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 05:26:04,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 05:26:04,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1476400751, now seen corresponding path program 1 times [2023-12-25 05:26:04,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 05:26:04,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090224348] [2023-12-25 05:26:04,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 05:26:04,200 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 [2023-12-25 05:26:04,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 05:26:04,201 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-12-25 05:26:04,201 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 (37)] Waiting until timeout for monitored process [2023-12-25 05:26:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 05:26:04,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 1826 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-25 05:26:04,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 05:26:04,902 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 211 proven. 8 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-12-25 05:26:04,902 INFO L327 TraceCheckSpWp]: Computing backward predicates...