/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/neural-networks/tanh_w4_r3_case_0_safe.c-amalgamation.i


--------------------------------------------------------------------------------


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 04:05:30,106 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 04:05:30,159 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 04:05:30,162 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 04:05:30,162 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 04:05:30,184 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 04:05:30,184 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 04:05:30,185 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 04:05:30,185 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 04:05:30,186 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 04:05:30,186 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 04:05:30,187 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 04:05:30,187 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 04:05:30,187 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 04:05:30,187 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 04:05:30,188 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 04:05:30,188 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 04:05:30,190 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 04:05:30,190 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 04:05:30,190 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 04:05:30,192 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 04:05:30,192 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 04:05:30,192 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 04:05:30,192 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 04:05:30,192 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 04:05:30,193 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 04:05:30,193 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 04:05:30,194 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 04:05:30,194 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 04:05:30,195 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 04:05:30,195 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 04:05:30,196 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 04:05:30,196 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 04:05:30,197 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 04:05:30,197 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 04:05:30,376 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 04:05:30,403 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 04:05:30,405 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 04:05:30,406 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 04:05:30,410 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 04:05:30,411 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/neural-networks/tanh_w4_r3_case_0_safe.c-amalgamation.i
[2024-11-03 04:05:31,792 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 04:05:32,083 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 04:05:32,084 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/tanh_w4_r3_case_0_safe.c-amalgamation.i
[2024-11-03 04:05:32,116 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c877498ac/5181e969743b42e88a355f3065f1c34b/FLAGe6e196adf
[2024-11-03 04:05:32,131 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c877498ac/5181e969743b42e88a355f3065f1c34b
[2024-11-03 04:05:32,133 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 04:05:32,134 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 04:05:32,137 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 04:05:32,137 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 04:05:32,141 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 04:05:32,142 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:32" (1/1) ...
[2024-11-03 04:05:32,142 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a7c0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:32, skipping insertion in model container
[2024-11-03 04:05:32,143 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:05:32" (1/1) ...
[2024-11-03 04:05:32,203 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 04:05:32,852 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/tanh_w4_r3_case_0_safe.c-amalgamation.i[71401,71414]
[2024-11-03 04:05:33,021 WARN  L1070              CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-03 04:05:33,104 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 04:05:33,114 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 04:05:33,170 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/neural-networks/tanh_w4_r3_case_0_safe.c-amalgamation.i[71401,71414]
[2024-11-03 04:05:33,296 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 04:05:33,484 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 04:05:33,485 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33 WrapperNode
[2024-11-03 04:05:33,486 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 04:05:33,487 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 04:05:33,487 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 04:05:33,487 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 04:05:33,492 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,541 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,578 INFO  L138                Inliner]: procedures = 780, calls = 721, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 421
[2024-11-03 04:05:33,579 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 04:05:33,579 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 04:05:33,580 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 04:05:33,580 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 04:05:33,588 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,588 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,596 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,630 INFO  L175           MemorySlicer]: Split 185 memory accesses to 12 slices as follows [2, 7, 2, 43, 11, 12, 10, 16, 9, 35, 27, 11]. 23 percent of accesses are in the largest equivalence class. The 91 initializations are split as follows [2, 7, 2, 12, 8, 8, 8, 12, 8, 0, 16, 8]. The 56 writes are split as follows [0, 0, 0, 14, 0, 0, 0, 3, 0, 34, 5, 0].
[2024-11-03 04:05:33,630 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,630 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,650 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,655 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,662 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,668 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,678 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 04:05:33,679 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 04:05:33,679 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 04:05:33,679 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 04:05:33,679 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (1/1) ...
[2024-11-03 04:05:33,686 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 04:05:33,699 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 04:05:33,712 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)
[2024-11-03 04:05:33,716 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
[2024-11-03 04:05:33,736 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2024-11-03 04:05:33,737 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2024-11-03 04:05:33,737 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2024-11-03 04:05:33,737 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_simpleRNN
[2024-11-03 04:05:33,738 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1
[2024-11-03 04:05:33,738 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 04:05:33,739 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2
[2024-11-03 04:05:33,739 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10
[2024-11-03 04:05:33,740 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5
[2024-11-03 04:05:33,740 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6
[2024-11-03 04:05:33,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7
[2024-11-03 04:05:33,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8
[2024-11-03 04:05:33,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9
[2024-11-03 04:05:33,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10
[2024-11-03 04:05:33,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-11-03 04:05:33,741 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#8
[2024-11-03 04:05:33,742 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#9
[2024-11-03 04:05:33,742 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#10
[2024-11-03 04:05:33,742 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#11
[2024-11-03 04:05:33,742 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_affine_matmul
[2024-11-03 04:05:33,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul
[2024-11-03 04:05:33,742 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-03 04:05:33,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID
[2024-11-03 04:05:33,743 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-03 04:05:33,743 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6
[2024-11-03 04:05:33,744 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0
[2024-11-03 04:05:33,745 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6
[2024-11-03 04:05:33,746 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11
[2024-11-03 04:05:33,747 INFO  L130     BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell
[2024-11-03 04:05:33,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11
[2024-11-03 04:05:33,748 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-03 04:05:33,749 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10
[2024-11-03 04:05:33,750 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11
[2024-11-03 04:05:34,033 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 04:05:34,035 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 04:05:44,719 INFO  L?                        ?]: Removed 154 outVars from TransFormulas that were not future-live.
[2024-11-03 04:05:44,720 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 04:05:44,737 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 04:05:44,738 INFO  L316             CfgBuilder]: Removed 20 assume(true) statements.
[2024-11-03 04:05:44,739 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:44 BoogieIcfgContainer
[2024-11-03 04:05:44,739 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 04:05:44,742 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 04:05:44,742 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 04:05:44,745 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 04:05:44,746 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:05:32" (1/3) ...
[2024-11-03 04:05:44,746 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d95759b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:44, skipping insertion in model container
[2024-11-03 04:05:44,747 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:05:33" (2/3) ...
[2024-11-03 04:05:44,747 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d95759b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:05:44, skipping insertion in model container
[2024-11-03 04:05:44,747 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:05:44" (3/3) ...
[2024-11-03 04:05:44,748 INFO  L112   eAbstractionObserver]: Analyzing ICFG tanh_w4_r3_case_0_safe.c-amalgamation.i
[2024-11-03 04:05:44,766 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 04:05:44,766 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 04:05:44,835 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 04:05:44,840 INFO  L333      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, 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;@2e0bd542, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 04:05:44,841 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 04:05:44,844 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 128 states, 114 states have (on average 1.5350877192982457) internal successors, (175), 115 states have internal predecessors, (175), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-03 04:05:44,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-03 04:05:44,853 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:05:44,853 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 04:05:44,854 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:05:44,858 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:05:44,858 INFO  L85        PathProgramCache]: Analyzing trace with hash 67219695, now seen corresponding path program 1 times
[2024-11-03 04:05:44,865 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:05:44,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760573225]
[2024-11-03 04:05:44,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:05:44,867 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 04:05:44,867 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 04:05:44,870 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 04:05:44,871 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 04:05:45,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:05:45,871 INFO  L255         TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 04:05:45,878 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:05:45,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:05:45,889 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:05:45,903 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:05:45,904 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:05:45,904 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760573225]
[2024-11-03 04:05:45,904 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1760573225] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:05:45,905 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:05:45,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 04:05:45,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466505670]
[2024-11-03 04:05:45,910 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:05:45,914 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 04:05:45,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:05:45,931 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 04:05:45,935 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 04:05:45,938 INFO  L87              Difference]: Start difference. First operand  has 128 states, 114 states have (on average 1.5350877192982457) internal successors, (175), 115 states have internal predecessors, (175), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-03 04:05:45,971 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:05:45,971 INFO  L93              Difference]: Finished difference Result 252 states and 378 transitions.
[2024-11-03 04:05:45,974 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 04:05:45,975 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-03 04:05:45,975 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:05:45,981 INFO  L225             Difference]: With dead ends: 252
[2024-11-03 04:05:45,981 INFO  L226             Difference]: Without dead ends: 124
[2024-11-03 04:05:45,986 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 04:05:45,989 INFO  L432           NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 04:05:45,990 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 04:05:46,002 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2024-11-03 04:05:46,023 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2024-11-03 04:05:46,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 124 states, 111 states have (on average 1.3423423423423424) internal successors, (149), 111 states have internal predecessors, (149), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-03 04:05:46,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 163 transitions.
[2024-11-03 04:05:46,034 INFO  L78                 Accepts]: Start accepts. Automaton has 124 states and 163 transitions. Word has length 17
[2024-11-03 04:05:46,034 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:05:46,034 INFO  L471      AbstractCegarLoop]: Abstraction has 124 states and 163 transitions.
[2024-11-03 04:05:46,034 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-03 04:05:46,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 163 transitions.
[2024-11-03 04:05:46,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-03 04:05:46,035 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:05:46,035 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 04:05:46,044 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 04:05:46,239 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 04:05:46,240 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:05:46,240 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:05:46,240 INFO  L85        PathProgramCache]: Analyzing trace with hash 612732690, now seen corresponding path program 1 times
[2024-11-03 04:05:46,240 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:05:46,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066707379]
[2024-11-03 04:05:46,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:05:46,241 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 04:05:46,241 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 04:05:46,243 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 04:05:46,245 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 04:05:47,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:05:47,740 INFO  L255         TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-03 04:05:47,742 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:05:51,914 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:05:51,915 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:05:56,931 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:05:56,932 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:05:56,933 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066707379]
[2024-11-03 04:05:56,934 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1066707379] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:05:56,934 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:05:56,934 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13
[2024-11-03 04:05:56,934 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140348753]
[2024-11-03 04:05:56,934 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:05:56,936 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-03 04:05:56,936 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:05:56,936 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-03 04:05:56,937 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156
[2024-11-03 04:05:56,937 INFO  L87              Difference]: Start difference. First operand 124 states and 163 transitions. Second operand  has 13 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-03 04:06:03,756 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:07,760 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:11,824 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:15,828 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:19,863 WARN  L539   Checker$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 [0]
[2024-11-03 04:06:23,958 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-03 04:06:28,023 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:32,063 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2024-11-03 04:06:36,116 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-03 04:06:43,754 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:06:43,754 INFO  L93              Difference]: Finished difference Result 150 states and 196 transitions.
[2024-11-03 04:06:43,757 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-03 04:06:43,757 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17
[2024-11-03 04:06:43,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:06:43,760 INFO  L225             Difference]: With dead ends: 150
[2024-11-03 04:06:43,760 INFO  L226             Difference]: Without dead ends: 138
[2024-11-03 04:06:43,761 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182
[2024-11-03 04:06:43,762 INFO  L432           NwaCegarLoop]: 159 mSDtfsCounter, 262 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 8 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.9s IncrementalHoareTripleChecker+Time
[2024-11-03 04:06:43,762 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 1021 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 139 Invalid, 9 Unknown, 0 Unchecked, 45.9s Time]
[2024-11-03 04:06:43,763 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2024-11-03 04:06:43,776 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 125.
[2024-11-03 04:06:43,777 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 125 states, 112 states have (on average 1.3392857142857142) internal successors, (150), 112 states have internal predecessors, (150), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-03 04:06:43,778 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 164 transitions.
[2024-11-03 04:06:43,778 INFO  L78                 Accepts]: Start accepts. Automaton has 125 states and 164 transitions. Word has length 17
[2024-11-03 04:06:43,778 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:06:43,778 INFO  L471      AbstractCegarLoop]: Abstraction has 125 states and 164 transitions.
[2024-11-03 04:06:43,778 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-03 04:06:43,779 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 164 transitions.
[2024-11-03 04:06:43,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-03 04:06:43,779 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:06:43,779 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 04:06:43,796 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 04:06:43,980 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:43,980 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:06:43,981 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:06:43,981 INFO  L85        PathProgramCache]: Analyzing trace with hash 1685630519, now seen corresponding path program 1 times
[2024-11-03 04:06:43,981 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:06:43,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191588665]
[2024-11-03 04:06:43,981 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:06:43,981 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:43,981 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 04:06:43,983 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)
[2024-11-03 04:06:43,984 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 04:06:44,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:06:44,808 INFO  L255         TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-03 04:06:44,810 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:06:46,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:06:46,338 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:06:48,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-03 04:06:48,272 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:06:48,272 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [191588665]
[2024-11-03 04:06:48,272 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [191588665] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:06:48,272 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:06:48,272 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6
[2024-11-03 04:06:48,272 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618146579]
[2024-11-03 04:06:48,272 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:06:48,273 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-03 04:06:48,273 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:06:48,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-03 04:06:48,278 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 04:06:48,278 INFO  L87              Difference]: Start difference. First operand 125 states and 164 transitions. Second operand  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-03 04:06:48,907 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:06:48,908 INFO  L93              Difference]: Finished difference Result 136 states and 176 transitions.
[2024-11-03 04:06:48,908 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 04:06:48,909 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17
[2024-11-03 04:06:48,909 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:06:48,910 INFO  L225             Difference]: With dead ends: 136
[2024-11-03 04:06:48,910 INFO  L226             Difference]: Without dead ends: 116
[2024-11-03 04:06:48,910 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-03 04:06:48,914 INFO  L432           NwaCegarLoop]: 161 mSDtfsCounter, 29 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-03 04:06:48,915 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 623 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-03 04:06:48,915 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 116 states.
[2024-11-03 04:06:48,930 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116.
[2024-11-03 04:06:48,932 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 116 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 104 states have internal predecessors, (138), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6)
[2024-11-03 04:06:48,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 150 transitions.
[2024-11-03 04:06:48,933 INFO  L78                 Accepts]: Start accepts. Automaton has 116 states and 150 transitions. Word has length 17
[2024-11-03 04:06:48,933 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:06:48,933 INFO  L471      AbstractCegarLoop]: Abstraction has 116 states and 150 transitions.
[2024-11-03 04:06:48,934 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-03 04:06:48,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 150 transitions.
[2024-11-03 04:06:48,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-11-03 04:06:48,938 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:06:48,938 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 04:06:48,946 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0
[2024-11-03 04:06:49,138 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:49,140 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:06:49,140 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:06:49,140 INFO  L85        PathProgramCache]: Analyzing trace with hash 2065806908, now seen corresponding path program 1 times
[2024-11-03 04:06:49,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:06:49,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097535924]
[2024-11-03 04:06:49,141 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:06:49,144 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:49,144 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 04:06:49,145 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 04:06:49,147 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 04:06:49,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:06:49,998 INFO  L255         TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 04:06:50,001 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:06:50,542 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-03 04:06:50,542 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 04:06:54,401 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-03 04:06:54,402 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 04:06:54,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097535924]
[2024-11-03 04:06:54,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [2097535924] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 04:06:54,402 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 04:06:54,402 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 04:06:54,402 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643617908]
[2024-11-03 04:06:54,402 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 04:06:54,402 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 04:06:54,403 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 04:06:54,403 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 04:06:54,403 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 04:06:54,403 INFO  L87              Difference]: Start difference. First operand 116 states and 150 transitions. Second operand  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-03 04:06:54,701 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 04:06:54,702 INFO  L93              Difference]: Finished difference Result 230 states and 301 transitions.
[2024-11-03 04:06:54,702 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 04:06:54,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62
[2024-11-03 04:06:54,702 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 04:06:54,703 INFO  L225             Difference]: With dead ends: 230
[2024-11-03 04:06:54,703 INFO  L226             Difference]: Without dead ends: 123
[2024-11-03 04:06:54,704 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 04:06:54,705 INFO  L432           NwaCegarLoop]: 152 mSDtfsCounter, 2 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-03 04:06:54,705 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 297 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-03 04:06:54,705 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2024-11-03 04:06:54,716 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2024-11-03 04:06:54,717 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 110 states have (on average 1.3181818181818181) internal successors, (145), 110 states have internal predecessors, (145), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-03 04:06:54,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 159 transitions.
[2024-11-03 04:06:54,723 INFO  L78                 Accepts]: Start accepts. Automaton has 123 states and 159 transitions. Word has length 62
[2024-11-03 04:06:54,723 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 04:06:54,724 INFO  L471      AbstractCegarLoop]: Abstraction has 123 states and 159 transitions.
[2024-11-03 04:06:54,724 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6)
[2024-11-03 04:06:54,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 123 states and 159 transitions.
[2024-11-03 04:06:54,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-11-03 04:06:54,725 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 04:06:54,725 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 04:06:54,734 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0
[2024-11-03 04:06:54,926 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:54,926 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 04:06:54,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 04:06:54,926 INFO  L85        PathProgramCache]: Analyzing trace with hash -2104792588, now seen corresponding path program 1 times
[2024-11-03 04:06:54,927 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 04:06:54,927 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104898596]
[2024-11-03 04:06:54,927 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 04:06:54,927 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 04:06:54,927 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 04:06:54,929 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)
[2024-11-03 04:06:54,930 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process
[2024-11-03 04:06:55,808 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 04:06:55,868 INFO  L255         TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-03 04:06:55,871 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 04:07:07,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-11-03 04:07:07,466 INFO  L311         TraceCheckSpWp]: Computing backward predicates...