/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/seq-mthreaded/rekh_nxt.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 08:49:39,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 08:49:40,064 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 08:49:40,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 08:49:40,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 08:49:40,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 08:49:40,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 08:49:40,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 08:49:40,093 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 08:49:40,095 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 08:49:40,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 08:49:40,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 08:49:40,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 08:49:40,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 08:49:40,097 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 08:49:40,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 08:49:40,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 08:49:40,098 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 08:49:40,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 08:49:40,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 08:49:40,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 08:49:40,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 08:49:40,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 08:49:40,099 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 08:49:40,099 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 08:49:40,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 08:49:40,100 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 08:49:40,100 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 08:49:40,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 08:49:40,100 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 08:49:40,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 08:49:40,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 08:49:40,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 08:49:40,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 08:49:40,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 08:49:40,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 08:49:40,102 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 08:49:40,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 08:49:40,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 08:49:40,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 08:49:40,103 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 08:49:40,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 08:49:40,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 08:49:40,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 08:49:40,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 08:49:40,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 08:49:40,351 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 08:49:40,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2023-12-25 08:49:41,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 08:49:41,749 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 08:49:41,749 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c [2023-12-25 08:49:41,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef34d123/b62f71d472864d7ca584f39bec90ea3e/FLAG19671951d [2023-12-25 08:49:41,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fef34d123/b62f71d472864d7ca584f39bec90ea3e [2023-12-25 08:49:41,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 08:49:41,774 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 08:49:41,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 08:49:41,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 08:49:41,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 08:49:41,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:49:41" (1/1) ... [2023-12-25 08:49:41,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f4425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:41, skipping insertion in model container [2023-12-25 08:49:41,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 08:49:41" (1/1) ... [2023-12-25 08:49:41,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 08:49:42,001 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522] [2023-12-25 08:49:42,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 08:49:42,321 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 08:49:42,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok1.i","-S") [38] [2023-12-25 08:49:42,345 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522] [2023-12-25 08:49:42,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 08:49:42,634 INFO L206 MainTranslator]: Completed translation [2023-12-25 08:49:42,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42 WrapperNode [2023-12-25 08:49:42,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 08:49:42,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 08:49:42,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 08:49:42,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 08:49:42,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,785 INFO L138 Inliner]: procedures = 58, calls = 2046, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4670 [2023-12-25 08:49:42,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 08:49:42,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 08:49:42,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 08:49:42,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 08:49:42,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,859 INFO L175 MemorySlicer]: Split 1392 memory accesses to 15 slices as follows [2, 2, 7, 251, 259, 87, 87, 161, 177, 160, 177, 8, 2, 4, 8]. 19 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 243 writes are split as follows [1, 0, 3, 28, 28, 28, 28, 32, 27, 32, 27, 4, 1, 0, 4]. [2023-12-25 08:49:42,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,956 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:42,999 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 08:49:43,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 08:49:43,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 08:49:43,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 08:49:43,001 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (1/1) ... [2023-12-25 08:49:43,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 08:49:43,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 08:49:43,026 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 08:49:43,046 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 08:49:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 08:49:43,064 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-25 08:49:43,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-25 08:49:43,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-25 08:49:43,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#10 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#11 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#12 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#13 [2023-12-25 08:49:43,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#14 [2023-12-25 08:49:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-12-25 08:49:43,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-12-25 08:49:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-25 08:49:43,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-25 08:49:43,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-25 08:49:43,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-25 08:49:43,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-25 08:49:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-25 08:49:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-25 08:49:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-25 08:49:43,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2023-12-25 08:49:43,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-12-25 08:49:43,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-25 08:49:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-12-25 08:49:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-25 08:49:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-25 08:49:43,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-25 08:49:43,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#10 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#11 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#12 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#13 [2023-12-25 08:49:43,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#14 [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-25 08:49:43,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-25 08:49:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-12-25 08:49:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-12-25 08:49:43,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-12-25 08:49:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-12-25 08:49:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-12-25 08:49:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2023-12-25 08:49:43,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2023-12-25 08:49:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2023-12-25 08:49:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2023-12-25 08:49:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2023-12-25 08:49:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-12-25 08:49:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-12-25 08:49:43,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-25 08:49:43,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-12-25 08:49:43,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2023-12-25 08:49:43,079 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-12-25 08:49:43,079 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-12-25 08:49:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-25 08:49:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-25 08:49:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 08:49:43,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 08:49:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-12-25 08:49:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-12-25 08:49:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-25 08:49:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-25 08:49:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-12-25 08:49:43,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-12-25 08:49:43,539 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 08:49:43,541 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 08:50:10,038 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 08:50:10,140 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 08:50:10,140 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-25 08:50:10,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:50:10 BoogieIcfgContainer [2023-12-25 08:50:10,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 08:50:10,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 08:50:10,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 08:50:10,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 08:50:10,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 08:49:41" (1/3) ... [2023-12-25 08:50:10,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4266cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:50:10, skipping insertion in model container [2023-12-25 08:50:10,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 08:49:42" (2/3) ... [2023-12-25 08:50:10,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4266cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 08:50:10, skipping insertion in model container [2023-12-25 08:50:10,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 08:50:10" (3/3) ... [2023-12-25 08:50:10,149 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-2.c [2023-12-25 08:50:10,161 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 08:50:10,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 08:50:10,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 08:50:10,235 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;@58ff49bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 08:50:10,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 08:50:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 1446 states, 815 states have (on average 1.2723926380368098) internal successors, (1037), 944 states have internal predecessors, (1037), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2023-12-25 08:50:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8172 [2023-12-25 08:50:10,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:50:10,865 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:50:10,866 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:50:10,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:50:10,871 INFO L85 PathProgramCache]: Analyzing trace with hash 2103879824, now seen corresponding path program 1 times [2023-12-25 08:50:10,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:50:10,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248738614] [2023-12-25 08:50:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:50:10,911 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 08:50:10,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:50:10,913 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 08:50:10,934 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 08:50:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:50:18,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 18638 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-25 08:50:18,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:50:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1934656 backedges. 948774 proven. 0 refuted. 0 times theorem prover too weak. 985882 trivial. 0 not checked. [2023-12-25 08:50:19,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:50:19,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:50:19,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248738614] [2023-12-25 08:50:19,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248738614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:50:19,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 08:50:19,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 08:50:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194643260] [2023-12-25 08:50:19,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:50:19,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-25 08:50:19,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:50:19,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-25 08:50:19,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 08:50:19,323 INFO L87 Difference]: Start difference. First operand has 1446 states, 815 states have (on average 1.2723926380368098) internal successors, (1037), 944 states have internal predecessors, (1037), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) Second operand has 2 states, 2 states have (on average 422.0) internal successors, (844), 2 states have internal predecessors, (844), 2 states have call successors, (550), 2 states have call predecessors, (550), 2 states have return successors, (551), 2 states have call predecessors, (551), 2 states have call successors, (551) [2023-12-25 08:50:23,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:50:28,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:50:28,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:50:28,970 INFO L93 Difference]: Finished difference Result 2890 states and 5120 transitions. [2023-12-25 08:50:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-25 08:50:28,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 422.0) internal successors, (844), 2 states have internal predecessors, (844), 2 states have call successors, (550), 2 states have call predecessors, (550), 2 states have return successors, (551), 2 states have call predecessors, (551), 2 states have call successors, (551) Word has length 8171 [2023-12-25 08:50:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:50:28,993 INFO L225 Difference]: With dead ends: 2890 [2023-12-25 08:50:28,993 INFO L226 Difference]: Without dead ends: 1444 [2023-12-25 08:50:29,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8170 GetRequests, 8170 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-25 08:50:29,014 INFO L413 NwaCegarLoop]: 2236 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-25 08:50:29,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2236 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2023-12-25 08:50:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-12-25 08:50:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1444. [2023-12-25 08:50:29,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 814 states have (on average 1.2678132678132679) internal successors, (1032), 942 states have internal predecessors, (1032), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2023-12-25 08:50:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2258 transitions. [2023-12-25 08:50:29,298 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2258 transitions. Word has length 8171 [2023-12-25 08:50:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:50:29,300 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 2258 transitions. [2023-12-25 08:50:29,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 422.0) internal successors, (844), 2 states have internal predecessors, (844), 2 states have call successors, (550), 2 states have call predecessors, (550), 2 states have return successors, (551), 2 states have call predecessors, (551), 2 states have call successors, (551) [2023-12-25 08:50:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2258 transitions. [2023-12-25 08:50:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8172 [2023-12-25 08:50:29,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:50:29,869 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:50:29,981 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 08:50:30,092 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 08:50:30,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:50:30,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:50:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1226288776, now seen corresponding path program 1 times [2023-12-25 08:50:30,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:50:30,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517196009] [2023-12-25 08:50:30,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:50:30,103 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 08:50:30,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:50:30,107 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 08:50:30,108 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 08:50:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:50:46,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 18638 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:50:47,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:52:12,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-12-25 08:52:24,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:52:24,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:52:33,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:52:33,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 64 [2023-12-25 08:52:33,108 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:52:33,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2023-12-25 08:52:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1934656 backedges. 541259 proven. 2978 refuted. 0 times theorem prover too weak. 1390419 trivial. 0 not checked. [2023-12-25 08:52:35,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 08:53:07,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:53:07,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 08:53:10,626 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:53:10,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517196009] [2023-12-25 08:53:10,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517196009] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 08:53:10,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [473637969] [2023-12-25 08:53:10,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:53:10,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 08:53:10,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 08:53:10,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-25 08:53:10,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-25 08:53:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:53:19,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 18638 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 08:53:19,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:53:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1934656 backedges. 631589 proven. 0 refuted. 0 times theorem prover too weak. 1303067 trivial. 0 not checked. [2023-12-25 08:53:20,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:53:20,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [473637969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:53:20,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 08:53:20,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [45] total 46 [2023-12-25 08:53:20,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802109796] [2023-12-25 08:53:20,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:53:20,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 08:53:20,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:53:20,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 08:53:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=3687, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 08:53:20,578 INFO L87 Difference]: Start difference. First operand 1444 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) [2023-12-25 08:53:24,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:53:28,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:53:34,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:53:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:53:34,610 INFO L93 Difference]: Finished difference Result 2886 states and 4541 transitions. [2023-12-25 08:53:34,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 08:53:34,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) Word has length 8171 [2023-12-25 08:53:34,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:53:34,634 INFO L225 Difference]: With dead ends: 2886 [2023-12-25 08:53:34,634 INFO L226 Difference]: Without dead ends: 1444 [2023-12-25 08:53:34,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23637 GetRequests, 23572 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1523 ImplicationChecksByTransitivity, 51.7s TimeCoverageRelationStatistics Valid=735, Invalid=3687, Unknown=0, NotChecked=0, Total=4422 [2023-12-25 08:53:34,649 INFO L413 NwaCegarLoop]: 2233 mSDtfsCounter, 27 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-25 08:53:34,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 4422 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2023-12-25 08:53:34,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2023-12-25 08:53:34,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1444. [2023-12-25 08:53:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 814 states have (on average 1.2665847665847665) internal successors, (1031), 942 states have internal predecessors, (1031), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) [2023-12-25 08:53:34,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 2257 transitions. [2023-12-25 08:53:34,848 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 2257 transitions. Word has length 8171 [2023-12-25 08:53:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:53:34,858 INFO L495 AbstractCegarLoop]: Abstraction has 1444 states and 2257 transitions. [2023-12-25 08:53:34,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 2 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 2 states have call predecessors, (487), 2 states have call successors, (487) [2023-12-25 08:53:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 2257 transitions. [2023-12-25 08:53:35,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8748 [2023-12-25 08:53:35,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:53:35,463 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 192, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:53:35,503 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-25 08:53:35,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-25 08:53:35,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 08:53:35,889 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:53:35,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:53:35,890 INFO L85 PathProgramCache]: Analyzing trace with hash -741139592, now seen corresponding path program 1 times [2023-12-25 08:53:35,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:53:35,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583183437] [2023-12-25 08:53:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:53:35,899 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 08:53:35,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:53:35,901 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 08:53:35,902 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 08:53:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:53:52,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 20366 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:53:52,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:55:25,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-12-25 08:55:38,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:55:38,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 08:55:46,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:55:46,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 64 [2023-12-25 08:55:46,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:55:46,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2023-12-25 08:55:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1980448 backedges. 541259 proven. 2978 refuted. 0 times theorem prover too weak. 1436211 trivial. 0 not checked. [2023-12-25 08:55:49,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 08:56:23,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:56:23,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 08:56:27,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 08:56:27,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583183437] [2023-12-25 08:56:27,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583183437] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 08:56:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [24333536] [2023-12-25 08:56:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:56:27,089 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 08:56:27,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 08:56:27,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-25 08:56:27,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-25 08:56:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:56:36,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 20366 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 08:56:36,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:56:40,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1980448 backedges. 635216 proven. 0 refuted. 0 times theorem prover too weak. 1345232 trivial. 0 not checked. [2023-12-25 08:56:40,497 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 08:56:40,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [24333536] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 08:56:40,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 08:56:40,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [45] total 48 [2023-12-25 08:56:40,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545827071] [2023-12-25 08:56:40,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 08:56:40,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 08:56:40,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 08:56:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 08:56:40,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=740, Invalid=3952, Unknown=0, NotChecked=0, Total=4692 [2023-12-25 08:56:40,506 INFO L87 Difference]: Start difference. First operand 1444 states and 2257 transitions. Second operand has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 3 states have call successors, (495), 3 states have call predecessors, (495), 3 states have return successors, (495), 3 states have call predecessors, (495), 3 states have call successors, (495) [2023-12-25 08:56:42,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:56:45,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:56:49,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:56:58,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:02,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:06,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:43,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:47,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:51,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 08:57:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 08:57:51,386 INFO L93 Difference]: Finished difference Result 3591 states and 5598 transitions. [2023-12-25 08:57:51,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 08:57:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 3 states have call successors, (495), 3 states have call predecessors, (495), 3 states have return successors, (495), 3 states have call predecessors, (495), 3 states have call successors, (495) Word has length 8747 [2023-12-25 08:57:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 08:57:51,409 INFO L225 Difference]: With dead ends: 3591 [2023-12-25 08:57:51,409 INFO L226 Difference]: Without dead ends: 2149 [2023-12-25 08:57:51,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25366 GetRequests, 25298 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1681 ImplicationChecksByTransitivity, 59.6s TimeCoverageRelationStatistics Valid=744, Invalid=4086, Unknown=0, NotChecked=0, Total=4830 [2023-12-25 08:57:51,428 INFO L413 NwaCegarLoop]: 2926 mSDtfsCounter, 2022 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 29 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.8s IncrementalHoareTripleChecker+Time [2023-12-25 08:57:51,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 6838 Invalid, 2415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2381 Invalid, 5 Unknown, 0 Unchecked, 69.8s Time] [2023-12-25 08:57:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-12-25 08:57:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2146. [2023-12-25 08:57:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 1234 states have (on average 1.2358184764991895) internal successors, (1525), 1362 states have internal predecessors, (1525), 890 states have call successors, (890), 22 states have call predecessors, (890), 21 states have return successors, (890), 790 states have call predecessors, (890), 890 states have call successors, (890) [2023-12-25 08:57:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 3305 transitions. [2023-12-25 08:57:51,846 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 3305 transitions. Word has length 8747 [2023-12-25 08:57:51,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 08:57:51,849 INFO L495 AbstractCegarLoop]: Abstraction has 2146 states and 3305 transitions. [2023-12-25 08:57:51,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 3 states have call successors, (495), 3 states have call predecessors, (495), 3 states have return successors, (495), 3 states have call predecessors, (495), 3 states have call successors, (495) [2023-12-25 08:57:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 3305 transitions. [2023-12-25 08:57:52,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8700 [2023-12-25 08:57:52,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 08:57:52,588 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 192, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 08:57:52,706 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 08:57:52,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-25 08:57:52,996 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-25 08:57:52,997 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 08:57:52,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 08:57:52,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1348130480, now seen corresponding path program 1 times [2023-12-25 08:57:53,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 08:57:53,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986558248] [2023-12-25 08:57:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 08:57:53,008 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 08:57:53,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 08:57:53,009 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 08:57:53,010 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 08:58:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 08:58:11,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 20294 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 08:58:11,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 08:59:41,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-12-25 08:59:53,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 08:59:53,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 09:00:01,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:00:01,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 64 [2023-12-25 09:00:01,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:00:01,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2023-12-25 09:00:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1982488 backedges. 541259 proven. 2978 refuted. 0 times theorem prover too weak. 1438251 trivial. 0 not checked. [2023-12-25 09:00:04,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-25 09:00:38,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:00:38,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 55 [2023-12-25 09:00:41,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 09:00:41,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986558248] [2023-12-25 09:00:41,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986558248] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-25 09:00:41,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1347540065] [2023-12-25 09:00:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:00:41,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-25 09:00:41,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-25 09:00:41,378 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-25 09:00:41,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-25 09:00:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:00:50,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 20294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 09:00:50,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:00:53,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1982488 backedges. 630924 proven. 0 refuted. 0 times theorem prover too weak. 1351564 trivial. 0 not checked. [2023-12-25 09:00:53,984 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 09:00:53,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1347540065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 09:00:53,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-25 09:00:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [45] total 47 [2023-12-25 09:00:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627153436] [2023-12-25 09:00:53,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 09:00:53,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 09:00:53,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 09:00:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 09:00:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=738, Invalid=3818, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 09:00:53,992 INFO L87 Difference]: Start difference. First operand 2146 states and 3305 transitions. Second operand has 4 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 3 states have call successors, (488), 3 states have call predecessors, (488), 2 states have return successors, (488), 2 states have call predecessors, (488), 3 states have call successors, (488) [2023-12-25 09:00:58,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:02,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:09,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.81s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:13,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:31,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:33,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-25 09:01:33,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 09:01:33,486 INFO L93 Difference]: Finished difference Result 3945 states and 6110 transitions. [2023-12-25 09:01:33,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 09:01:33,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 3 states have call successors, (488), 3 states have call predecessors, (488), 2 states have return successors, (488), 2 states have call predecessors, (488), 3 states have call successors, (488) Word has length 8699 [2023-12-25 09:01:33,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 09:01:33,505 INFO L225 Difference]: With dead ends: 3945 [2023-12-25 09:01:33,507 INFO L226 Difference]: Without dead ends: 2269 [2023-12-25 09:01:33,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25221 GetRequests, 25155 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 56.2s TimeCoverageRelationStatistics Valid=738, Invalid=3818, Unknown=0, NotChecked=0, Total=4556 [2023-12-25 09:01:33,522 INFO L413 NwaCegarLoop]: 2926 mSDtfsCounter, 1795 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 26 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2023-12-25 09:01:33,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 5176 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1079 Invalid, 4 Unknown, 0 Unchecked, 39.2s Time] [2023-12-25 09:01:33,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2269 states. [2023-12-25 09:01:33,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2269 to 2268. [2023-12-25 09:01:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2268 states, 1324 states have (on average 1.2424471299093656) internal successors, (1645), 1452 states have internal predecessors, (1645), 918 states have call successors, (918), 26 states have call predecessors, (918), 25 states have return successors, (918), 818 states have call predecessors, (918), 918 states have call successors, (918) [2023-12-25 09:01:33,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 3481 transitions. [2023-12-25 09:01:33,821 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 3481 transitions. Word has length 8699 [2023-12-25 09:01:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 09:01:33,822 INFO L495 AbstractCegarLoop]: Abstraction has 2268 states and 3481 transitions. [2023-12-25 09:01:33,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 164.5) internal successors, (658), 4 states have internal predecessors, (658), 3 states have call successors, (488), 3 states have call predecessors, (488), 2 states have return successors, (488), 2 states have call predecessors, (488), 3 states have call successors, (488) [2023-12-25 09:01:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 3481 transitions. [2023-12-25 09:01:34,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9084 [2023-12-25 09:01:34,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 09:01:34,331 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 192, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 09:01:34,448 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 09:01:34,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-25 09:01:34,752 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-25 09:01:34,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 09:01:34,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 09:01:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1603062696, now seen corresponding path program 1 times [2023-12-25 09:01:34,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 09:01:34,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653565071] [2023-12-25 09:01:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 09:01:34,765 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 09:01:34,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 09:01:34,766 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 09:01:34,767 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 09:01:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 09:01:51,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 20966 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-25 09:01:51,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 09:03:24,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2023-12-25 09:03:36,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:03:36,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 44 [2023-12-25 09:03:44,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:03:44,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 64 [2023-12-25 09:03:45,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-25 09:03:45,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 43 [2023-12-25 09:03:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2000728 backedges. 541259 proven. 2978 refuted. 0 times theorem prover too weak. 1456491 trivial. 0 not checked. [2023-12-25 09:03:47,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-25 09:04:04,814 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 09:04:04,815 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-25 09:04:04,871 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-25 09:04:04,987 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 09:04:05,080 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 09:04:05,080 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 9084 with TraceHistMax 964,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-4-1 term,while SimplifyDDA2 was simplifying 4 xjuncts wrt. a ATOM-1 context. [2023-12-25 09:04:05,084 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-25 09:04:05,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-25 09:04:05,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.12 09:04:05 BoogieIcfgContainer [2023-12-25 09:04:05,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-25 09:04:05,088 INFO L158 Benchmark]: Toolchain (without parser) took 863314.13ms. Allocated memory was 370.1MB in the beginning and 1.0GB in the end (delta: 630.2MB). Free memory was 317.3MB in the beginning and 631.6MB in the end (delta: -314.4MB). Peak memory consumption was 316.7MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,088 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 212.9MB. Free memory is still 164.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-25 09:04:05,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.22ms. Allocated memory is still 370.1MB. Free memory was 316.9MB in the beginning and 308.2MB in the end (delta: 8.7MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 149.97ms. Allocated memory is still 370.1MB. Free memory was 307.7MB in the beginning and 283.0MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,090 INFO L158 Benchmark]: Boogie Preprocessor took 214.05ms. Allocated memory is still 370.1MB. Free memory was 283.0MB in the beginning and 252.6MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,090 INFO L158 Benchmark]: RCFGBuilder took 27140.38ms. Allocated memory was 370.1MB in the beginning and 694.2MB in the end (delta: 324.0MB). Free memory was 252.6MB in the beginning and 539.3MB in the end (delta: -286.7MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,090 INFO L158 Benchmark]: TraceAbstraction took 834943.49ms. Allocated memory was 694.2MB in the beginning and 1.0GB in the end (delta: 306.2MB). Free memory was 538.8MB in the beginning and 631.6MB in the end (delta: -92.9MB). Peak memory consumption was 213.8MB. Max. memory is 8.0GB. [2023-12-25 09:04:05,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 212.9MB. Free memory is still 164.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 860.22ms. Allocated memory is still 370.1MB. Free memory was 316.9MB in the beginning and 308.2MB in the end (delta: 8.7MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 149.97ms. Allocated memory is still 370.1MB. Free memory was 307.7MB in the beginning and 283.0MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 214.05ms. Allocated memory is still 370.1MB. Free memory was 283.0MB in the beginning and 252.6MB in the end (delta: 30.4MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * RCFGBuilder took 27140.38ms. Allocated memory was 370.1MB in the beginning and 694.2MB in the end (delta: 324.0MB). Free memory was 252.6MB in the beginning and 539.3MB in the end (delta: -286.7MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. * TraceAbstraction took 834943.49ms. Allocated memory was 694.2MB in the beginning and 1.0GB in the end (delta: 306.2MB). Free memory was 538.8MB in the beginning and 631.6MB in the end (delta: -92.9MB). Peak memory consumption was 213.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 38]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok1.i","-S") [38] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 39). Cancelled while NwaCegarLoop was analyzing trace of length 9084 with TraceHistMax 964,while TraceCheckSpWp was constructing backward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∨-4-1 term,while SimplifyDDA2 was simplifying 4 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 17 procedures, 1446 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 834.9s, OverallIterations: 5, TraceHistogramMax: 964, PathProgramHistogramMax: 1, EmptinessCheckTime: 3.0s, AutomataDifference: 134.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 3863 SdHoareTripleChecker+Valid, 132.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3844 mSDsluCounter, 18672 SdHoareTripleChecker+Invalid, 129.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8351 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3523 IncrementalHoareTripleChecker+Invalid, 3595 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 10321 mSDtfsCounter, 3523 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82394 GetRequests, 82195 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4787 ImplicationChecksByTransitivity, 167.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2268occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.1s SsaConstructionTime, 56.5s SatisfiabilityAnalysisTime, 462.2s InterpolantComputationTime, 59405 NumberOfCodeBlocks, 59405 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 59398 ConstructedInterpolants, 129 QuantifiedInterpolants, 167207 SizeOfPredicates, 91 NumberOfNonLiveVariables, 137234 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 13720906/13729840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown