/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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-24 14:18:12,114 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-24 14:18:12,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-24 14:18:12,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-24 14:18:12,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-24 14:18:12,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-24 14:18:12,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-24 14:18:12,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-24 14:18:12,221 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-24 14:18:12,223 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-24 14:18:12,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-24 14:18:12,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-24 14:18:12,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-24 14:18:12,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-24 14:18:12,225 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-24 14:18:12,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-24 14:18:12,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-24 14:18:12,226 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-24 14:18:12,226 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-24 14:18:12,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-24 14:18:12,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-24 14:18:12,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-24 14:18:12,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-24 14:18:12,227 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-24 14:18:12,228 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-24 14:18:12,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-24 14:18:12,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-24 14:18:12,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-24 14:18:12,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 14:18:12,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-24 14:18:12,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-24 14:18:12,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-24 14:18:12,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-24 14:18:12,231 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-12-24 14:18:12,231 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-24 14:18:12,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-24 14:18:12,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-24 14:18:12,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-24 14:18:12,412 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-24 14:18:12,412 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-24 14:18:12,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i
[2023-12-24 14:18:13,430 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-24 14:18:13,597 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-24 14:18:13,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i
[2023-12-24 14:18:13,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31c28856/a5e4af85dcef4565bc4ad503a81718fd/FLAGfa3710723
[2023-12-24 14:18:13,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f31c28856/a5e4af85dcef4565bc4ad503a81718fd
[2023-12-24 14:18:13,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-24 14:18:13,623 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-24 14:18:13,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-24 14:18:13,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-24 14:18:13,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-24 14:18:13,639 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d27470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13, skipping insertion in model container
[2023-12-24 14:18:13,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,664 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-24 14:18:13,798 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929]
[2023-12-24 14:18:13,841 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-24 14:18:13,852 INFO L202 MainTranslator]: Completed pre-run
[2023-12-24 14:18:13,860 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-97.i[916,929]
[2023-12-24 14:18:13,888 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-24 14:18:13,910 INFO L206 MainTranslator]: Completed translation
[2023-12-24 14:18:13,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13 WrapperNode
[2023-12-24 14:18:13,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-24 14:18:13,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-24 14:18:13,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-24 14:18:13,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-24 14:18:13,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,952 INFO L138 Inliner]: procedures = 33, calls = 149, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 415
[2023-12-24 14:18:13,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-24 14:18:13,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-24 14:18:13,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-24 14:18:13,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-24 14:18:13,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,991 INFO L175 MemorySlicer]: Split 116 memory accesses to 6 slices as follows [2, 25, 17, 25, 34, 13]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 5, 2]. The 19 writes are split as follows [0, 4, 2, 4, 7, 2].
[2023-12-24 14:18:13,991 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:13,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-24 14:18:14,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-24 14:18:14,029 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-24 14:18:14,029 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-24 14:18:14,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (1/1) ...
[2023-12-24 14:18:14,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-24 14:18:14,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-24 14:18:14,089 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)
[2023-12-24 14:18:14,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-24 14:18:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-24 14:18:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2023-12-24 14:18:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2023-12-24 14:18:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2023-12-24 14:18:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3
[2023-12-24 14:18:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4
[2023-12-24 14:18:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-12-24 14:18:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2023-12-24 14:18:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2023-12-24 14:18:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2023-12-24 14:18:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2023-12-24 14:18:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2023-12-24 14:18:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2023-12-24 14:18:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2023-12-24 14:18:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2023-12-24 14:18:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2023-12-24 14:18:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2023-12-24 14:18:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0
[2023-12-24 14:18:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1
[2023-12-24 14:18:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2023-12-24 14:18:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-24 14:18:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-24 14:18:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1
[2023-12-24 14:18:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2
[2023-12-24 14:18:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3
[2023-12-24 14:18:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4
[2023-12-24 14:18:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5
[2023-12-24 14:18:14,248 INFO L241 CfgBuilder]: Building ICFG
[2023-12-24 14:18:14,250 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-24 14:18:14,599 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-24 14:18:14,641 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-24 14:18:14,641 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-24 14:18:14,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:18:14 BoogieIcfgContainer
[2023-12-24 14:18:14,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-24 14:18:14,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-24 14:18:14,643 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-24 14:18:14,646 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-24 14:18:14,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 02:18:13" (1/3) ...
[2023-12-24 14:18:14,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61018772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:18:14, skipping insertion in model container
[2023-12-24 14:18:14,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 02:18:13" (2/3) ...
[2023-12-24 14:18:14,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61018772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:18:14, skipping insertion in model container
[2023-12-24 14:18:14,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:18:14" (3/3) ...
[2023-12-24 14:18:14,647 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-97.i
[2023-12-24 14:18:14,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-24 14:18:14,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-24 14:18:14,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-24 14:18:14,751 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;@1e809df9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-24 14:18:14,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-24 14:18:14,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2023-12-24 14:18:14,768 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:14,769 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:14,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:14,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:14,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1880846002, now seen corresponding path program 1 times
[2023-12-24 14:18:14,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:14,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451151809]
[2023-12-24 14:18:14,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:14,789 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
[2023-12-24 14:18:14,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:14,790 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)
[2023-12-24 14:18:14,793 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
[2023-12-24 14:18:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:15,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-24 14:18:15,053 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked.
[2023-12-24 14:18:15,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:15,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:15,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451151809]
[2023-12-24 14:18:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451151809] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:15,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:15,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-24 14:18:15,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834374721]
[2023-12-24 14:18:15,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:15,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-24 14:18:15,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:15,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-24 14:18:15,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 14:18:15,121 INFO L87 Difference]: Start difference. First operand has 93 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 74 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:15,177 INFO L93 Difference]: Finished difference Result 183 states and 291 transitions.
[2023-12-24 14:18:15,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-12-24 14:18:15,184 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129
[2023-12-24 14:18:15,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:15,190 INFO L225 Difference]: With dead ends: 183
[2023-12-24 14:18:15,190 INFO L226 Difference]: Without dead ends: 91
[2023-12-24 14:18:15,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-24 14:18:15,196 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:15,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 14:18:15,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2023-12-24 14:18:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91.
[2023-12-24 14:18:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 72 states have (on average 1.375) internal successors, (99), 72 states have internal predecessors, (99), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:15,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 133 transitions.
[2023-12-24 14:18:15,224 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 133 transitions. Word has length 129
[2023-12-24 14:18:15,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:15,224 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 133 transitions.
[2023-12-24 14:18:15,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:15,225 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions.
[2023-12-24 14:18:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2023-12-24 14:18:15,227 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:15,227 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:15,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:15,434 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
[2023-12-24 14:18:15,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:15,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:15,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1392294788, now seen corresponding path program 1 times
[2023-12-24 14:18:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:15,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006240392]
[2023-12-24 14:18:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:15,438 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
[2023-12-24 14:18:15,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:15,439 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)
[2023-12-24 14:18:15,441 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
[2023-12-24 14:18:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:15,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 14:18:15,628 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:15,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:15,679 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:15,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006240392]
[2023-12-24 14:18:15,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1006240392] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:15,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:15,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 14:18:15,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271623575]
[2023-12-24 14:18:15,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:15,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 14:18:15,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:15,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 14:18:15,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 14:18:15,686 INFO L87 Difference]: Start difference. First operand 91 states and 133 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:15,765 INFO L93 Difference]: Finished difference Result 204 states and 299 transitions.
[2023-12-24 14:18:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:15,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129
[2023-12-24 14:18:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:15,770 INFO L225 Difference]: With dead ends: 204
[2023-12-24 14:18:15,770 INFO L226 Difference]: Without dead ends: 114
[2023-12-24 14:18:15,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:15,773 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 49 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:15,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 408 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 14:18:15,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2023-12-24 14:18:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 93.
[2023-12-24 14:18:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:15,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions.
[2023-12-24 14:18:15,781 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 129
[2023-12-24 14:18:15,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:15,782 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions.
[2023-12-24 14:18:15,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:15,782 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions.
[2023-12-24 14:18:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:15,783 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:15,783 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:15,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-12-24 14:18:15,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:15,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:15,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1778425354, now seen corresponding path program 1 times
[2023-12-24 14:18:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:15,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932089313]
[2023-12-24 14:18:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:15,986 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
[2023-12-24 14:18:15,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:15,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:15,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-24 14:18:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:16,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:18:16,188 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:16,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:16,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:16,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932089313]
[2023-12-24 14:18:16,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932089313] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:16,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:18:16,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831616166]
[2023-12-24 14:18:16,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:16,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:16,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:16,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:16,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:16,223 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:16,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:16,450 INFO L93 Difference]: Finished difference Result 284 states and 411 transitions.
[2023-12-24 14:18:16,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-24 14:18:16,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-24 14:18:16,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:16,452 INFO L225 Difference]: With dead ends: 284
[2023-12-24 14:18:16,452 INFO L226 Difference]: Without dead ends: 192
[2023-12-24 14:18:16,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:16,454 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 171 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:16,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 627 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:16,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states.
[2023-12-24 14:18:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 95.
[2023-12-24 14:18:16,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.355263157894737) internal successors, (103), 76 states have internal predecessors, (103), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions.
[2023-12-24 14:18:16,476 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 131
[2023-12-24 14:18:16,476 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:16,476 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions.
[2023-12-24 14:18:16,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:16,477 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions.
[2023-12-24 14:18:16,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:16,478 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:16,478 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:16,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:16,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:16,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:16,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:16,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1392662817, now seen corresponding path program 1 times
[2023-12-24 14:18:16,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:16,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386796875]
[2023-12-24 14:18:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:16,681 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
[2023-12-24 14:18:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:16,682 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)
[2023-12-24 14:18:16,686 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
[2023-12-24 14:18:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:16,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 14:18:16,885 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:16,899 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:16,899 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:16,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:16,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386796875]
[2023-12-24 14:18:16,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386796875] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:16,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:16,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 14:18:16,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289610794]
[2023-12-24 14:18:16,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:16,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 14:18:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:16,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 14:18:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 14:18:16,906 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:16,952 INFO L93 Difference]: Finished difference Result 201 states and 290 transitions.
[2023-12-24 14:18:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-24 14:18:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:16,957 INFO L225 Difference]: With dead ends: 201
[2023-12-24 14:18:16,957 INFO L226 Difference]: Without dead ends: 107
[2023-12-24 14:18:16,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:16,964 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 21 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:16,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 378 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 14:18:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2023-12-24 14:18:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 97.
[2023-12-24 14:18:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 78 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions.
[2023-12-24 14:18:16,976 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 131
[2023-12-24 14:18:16,976 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:16,976 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions.
[2023-12-24 14:18:16,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions.
[2023-12-24 14:18:16,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:16,977 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:16,978 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:16,983 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 (5)] Ended with exit code 0
[2023-12-24 14:18:17,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:17,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:17,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 583316191, now seen corresponding path program 1 times
[2023-12-24 14:18:17,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:17,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436546070]
[2023-12-24 14:18:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:17,180 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
[2023-12-24 14:18:17,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:17,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:17,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-24 14:18:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:17,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:18:17,363 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:17,378 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:17,378 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:17,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:17,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436546070]
[2023-12-24 14:18:17,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436546070] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:18:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579519081]
[2023-12-24 14:18:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:17,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:17,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:17,380 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:17,451 INFO L93 Difference]: Finished difference Result 206 states and 295 transitions.
[2023-12-24 14:18:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-12-24 14:18:17,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-24 14:18:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:17,452 INFO L225 Difference]: With dead ends: 206
[2023-12-24 14:18:17,452 INFO L226 Difference]: Without dead ends: 110
[2023-12-24 14:18:17,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-24 14:18:17,453 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 24 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:17,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 499 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:18:17,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states.
[2023-12-24 14:18:17,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 99.
[2023-12-24 14:18:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 80 states have (on average 1.3375) internal successors, (107), 80 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:17,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions.
[2023-12-24 14:18:17,458 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 131
[2023-12-24 14:18:17,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:17,458 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions.
[2023-12-24 14:18:17,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:17,458 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions.
[2023-12-24 14:18:17,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:17,459 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:17,459 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:17,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:17,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:17,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:17,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:17,665 INFO L85 PathProgramCache]: Analyzing trace with hash 640574493, now seen corresponding path program 1 times
[2023-12-24 14:18:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:17,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636596467]
[2023-12-24 14:18:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:17,666 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
[2023-12-24 14:18:17,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:17,668 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)
[2023-12-24 14:18:17,672 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
[2023-12-24 14:18:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:17,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 14:18:17,836 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:17,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:17,854 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:17,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636596467]
[2023-12-24 14:18:17,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636596467] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:17,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:17,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:18:17,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486867323]
[2023-12-24 14:18:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:17,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:18:17,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:17,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:18:17,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:17,856 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:17,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:17,955 INFO L93 Difference]: Finished difference Result 209 states and 296 transitions.
[2023-12-24 14:18:17,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-24 14:18:17,956 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131
[2023-12-24 14:18:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:17,957 INFO L225 Difference]: With dead ends: 209
[2023-12-24 14:18:17,957 INFO L226 Difference]: Without dead ends: 111
[2023-12-24 14:18:17,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2023-12-24 14:18:17,958 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 19 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:17,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 613 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:18:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states.
[2023-12-24 14:18:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101.
[2023-12-24 14:18:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 82 states have (on average 1.329268292682927) internal successors, (109), 82 states have internal predecessors, (109), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions.
[2023-12-24 14:18:17,962 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 131
[2023-12-24 14:18:17,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:17,963 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions.
[2023-12-24 14:18:17,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions.
[2023-12-24 14:18:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:17,964 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:17,964 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:17,984 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
[2023-12-24 14:18:18,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:18,172 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:18,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:18,172 INFO L85 PathProgramCache]: Analyzing trace with hash 640634075, now seen corresponding path program 1 times
[2023-12-24 14:18:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404773590]
[2023-12-24 14:18:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:18,173 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
[2023-12-24 14:18:18,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:18,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:18,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-24 14:18:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:18,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 18 conjunts are in the unsatisfiable core
[2023-12-24 14:18:18,412 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:18,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-24 14:18:18,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 42 treesize of output 20
[2023-12-24 14:18:18,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 35 treesize of output 28
[2023-12-24 14:18:19,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:19,012 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 39 treesize of output 19
[2023-12-24 14:18:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 34 proven. 90 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-24 14:18:19,029 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:19,363 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked.
[2023-12-24 14:18:19,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:19,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404773590]
[2023-12-24 14:18:19,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [404773590] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 14:18:19,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:18:19,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20
[2023-12-24 14:18:19,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545447983]
[2023-12-24 14:18:19,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:18:19,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-24 14:18:19,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:19,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-24 14:18:19,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380
[2023-12-24 14:18:19,365 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 20 states, 16 states have (on average 5.5625) internal successors, (89), 20 states have internal predecessors, (89), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 6 states have call successors, (34)
[2023-12-24 14:18:20,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:20,465 INFO L93 Difference]: Finished difference Result 321 states and 443 transitions.
[2023-12-24 14:18:20,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states.
[2023-12-24 14:18:20,466 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 5.5625) internal successors, (89), 20 states have internal predecessors, (89), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 6 states have call successors, (34) Word has length 131
[2023-12-24 14:18:20,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:20,467 INFO L225 Difference]: With dead ends: 321
[2023-12-24 14:18:20,467 INFO L226 Difference]: Without dead ends: 221
[2023-12-24 14:18:20,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722
[2023-12-24 14:18:20,469 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 455 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:20,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 924 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-24 14:18:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2023-12-24 14:18:20,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 116.
[2023-12-24 14:18:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 159 transitions.
[2023-12-24 14:18:20,478 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 159 transitions. Word has length 131
[2023-12-24 14:18:20,478 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:20,478 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 159 transitions.
[2023-12-24 14:18:20,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 5.5625) internal successors, (89), 20 states have internal predecessors, (89), 6 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 2 states have call predecessors, (34), 6 states have call successors, (34)
[2023-12-24 14:18:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 159 transitions.
[2023-12-24 14:18:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:20,479 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:20,479 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:20,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:20,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:20,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:20,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1164804259, now seen corresponding path program 1 times
[2023-12-24 14:18:20,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:20,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489233274]
[2023-12-24 14:18:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:20,687 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
[2023-12-24 14:18:20,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:20,688 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)
[2023-12-24 14:18:20,689 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
[2023-12-24 14:18:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:20,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-24 14:18:20,872 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:21,269 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 50 treesize of output 26
[2023-12-24 14:18:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-12-24 14:18:21,282 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked.
[2023-12-24 14:18:21,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:21,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489233274]
[2023-12-24 14:18:21,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489233274] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 14:18:21,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:18:21,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 15
[2023-12-24 14:18:21,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813516071]
[2023-12-24 14:18:21,517 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:18:21,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-12-24 14:18:21,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:21,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-12-24 14:18:21,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210
[2023-12-24 14:18:21,519 INFO L87 Difference]: Start difference. First operand 116 states and 159 transitions. Second operand has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:21,948 INFO L93 Difference]: Finished difference Result 253 states and 337 transitions.
[2023-12-24 14:18:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-12-24 14:18:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 131
[2023-12-24 14:18:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:21,949 INFO L225 Difference]: With dead ends: 253
[2023-12-24 14:18:21,949 INFO L226 Difference]: Without dead ends: 138
[2023-12-24 14:18:21,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506
[2023-12-24 14:18:21,950 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 223 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:21,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 582 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-24 14:18:21,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states.
[2023-12-24 14:18:21,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 123.
[2023-12-24 14:18:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.29) internal successors, (129), 100 states have internal predecessors, (129), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 163 transitions.
[2023-12-24 14:18:21,957 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 163 transitions. Word has length 131
[2023-12-24 14:18:21,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:21,958 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 163 transitions.
[2023-12-24 14:18:21,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 7.363636363636363) internal successors, (81), 15 states have internal predecessors, (81), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 163 transitions.
[2023-12-24 14:18:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-12-24 14:18:21,959 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:21,959 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:21,967 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
[2023-12-24 14:18:22,165 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
[2023-12-24 14:18:22,165 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:22,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:22,165 INFO L85 PathProgramCache]: Analyzing trace with hash -317556716, now seen corresponding path program 1 times
[2023-12-24 14:18:22,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:22,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1925550449]
[2023-12-24 14:18:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:22,166 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
[2023-12-24 14:18:22,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:22,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:22,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-12-24 14:18:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:22,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-24 14:18:22,346 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:22,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 35 treesize of output 28
[2023-12-24 14:18:22,794 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:22,794 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 39 treesize of output 19
[2023-12-24 14:18:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-12-24 14:18:22,809 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked.
[2023-12-24 14:18:23,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:23,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1925550449]
[2023-12-24 14:18:23,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1925550449] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 14:18:23,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:18:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20
[2023-12-24 14:18:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167311022]
[2023-12-24 14:18:23,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:18:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-24 14:18:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-24 14:18:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380
[2023-12-24 14:18:23,088 INFO L87 Difference]: Start difference. First operand 123 states and 163 transitions. Second operand has 20 states, 16 states have (on average 5.4375) internal successors, (87), 20 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:24,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:24,416 INFO L93 Difference]: Finished difference Result 368 states and 481 transitions.
[2023-12-24 14:18:24,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states.
[2023-12-24 14:18:24,416 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 5.4375) internal successors, (87), 20 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 131
[2023-12-24 14:18:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:24,417 INFO L225 Difference]: With dead ends: 368
[2023-12-24 14:18:24,418 INFO L226 Difference]: Without dead ends: 246
[2023-12-24 14:18:24,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=389, Invalid=1503, Unknown=0, NotChecked=0, Total=1892
[2023-12-24 14:18:24,419 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 324 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:24,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1434 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-24 14:18:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2023-12-24 14:18:24,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 115.
[2023-12-24 14:18:24,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 92 states have (on average 1.2717391304347827) internal successors, (117), 92 states have internal predecessors, (117), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:24,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions.
[2023-12-24 14:18:24,428 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 131
[2023-12-24 14:18:24,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:24,428 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions.
[2023-12-24 14:18:24,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 5.4375) internal successors, (87), 20 states have internal predecessors, (87), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions.
[2023-12-24 14:18:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-24 14:18:24,429 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:24,430 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:24,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:24,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:24,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:24,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:24,636 INFO L85 PathProgramCache]: Analyzing trace with hash -2139682650, now seen corresponding path program 1 times
[2023-12-24 14:18:24,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:24,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130409475]
[2023-12-24 14:18:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:24,636 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
[2023-12-24 14:18:24,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:24,637 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:24,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-24 14:18:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:24,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-24 14:18:24,815 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:24,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10
[2023-12-24 14:18:24,835 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 43 treesize of output 25
[2023-12-24 14:18:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:24,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:24,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:24,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130409475]
[2023-12-24 14:18:24,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130409475] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:24,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:24,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:18:24,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281144953]
[2023-12-24 14:18:24,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:24,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:18:24,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:24,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:18:24,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:24,858 INFO L87 Difference]: Start difference. First operand 115 states and 151 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:25,096 INFO L93 Difference]: Finished difference Result 427 states and 566 transitions.
[2023-12-24 14:18:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-24 14:18:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132
[2023-12-24 14:18:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:25,098 INFO L225 Difference]: With dead ends: 427
[2023-12-24 14:18:25,098 INFO L226 Difference]: Without dead ends: 313
[2023-12-24 14:18:25,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156
[2023-12-24 14:18:25,099 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 278 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:25,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 941 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:25,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2023-12-24 14:18:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 119.
[2023-12-24 14:18:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.28125) internal successors, (123), 96 states have internal predecessors, (123), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions.
[2023-12-24 14:18:25,108 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 132
[2023-12-24 14:18:25,108 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:25,108 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions.
[2023-12-24 14:18:25,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:25,108 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions.
[2023-12-24 14:18:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-12-24 14:18:25,109 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:25,109 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:25,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:25,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:25,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:25,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1769522109, now seen corresponding path program 1 times
[2023-12-24 14:18:25,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:25,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751652451]
[2023-12-24 14:18:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:25,317 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:25,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:25,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:25,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-12-24 14:18:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:25,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:18:25,490 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:25,532 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 18 treesize of output 10
[2023-12-24 14:18:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:25,568 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:25,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:25,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751652451]
[2023-12-24 14:18:25,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751652451] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:25,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:25,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:18:25,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654335012]
[2023-12-24 14:18:25,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:25,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:25,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:25,569 INFO L87 Difference]: Start difference. First operand 119 states and 157 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:26,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:26,080 INFO L93 Difference]: Finished difference Result 237 states and 313 transitions.
[2023-12-24 14:18:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:26,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132
[2023-12-24 14:18:26,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:26,082 INFO L225 Difference]: With dead ends: 237
[2023-12-24 14:18:26,082 INFO L226 Difference]: Without dead ends: 119
[2023-12-24 14:18:26,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:26,082 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 155 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:26,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 261 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-24 14:18:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2023-12-24 14:18:26,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119.
[2023-12-24 14:18:26,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 96 states have internal predecessors, (121), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 155 transitions.
[2023-12-24 14:18:26,090 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 155 transitions. Word has length 132
[2023-12-24 14:18:26,090 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:26,090 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 155 transitions.
[2023-12-24 14:18:26,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:26,091 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 155 transitions.
[2023-12-24 14:18:26,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-24 14:18:26,091 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:26,091 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:26,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:26,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:26,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:26,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:26,302 INFO L85 PathProgramCache]: Analyzing trace with hash 715461165, now seen corresponding path program 1 times
[2023-12-24 14:18:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:26,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734127209]
[2023-12-24 14:18:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:26,303 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:26,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:26,304 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:26,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-12-24 14:18:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:26,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:18:26,470 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:26,484 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 18 treesize of output 10
[2023-12-24 14:18:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:26,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:26,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:26,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734127209]
[2023-12-24 14:18:26,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734127209] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:26,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:26,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:18:26,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451336358]
[2023-12-24 14:18:26,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:26,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:26,520 INFO L87 Difference]: Start difference. First operand 119 states and 155 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:27,376 INFO L93 Difference]: Finished difference Result 237 states and 309 transitions.
[2023-12-24 14:18:27,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:27,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133
[2023-12-24 14:18:27,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:27,381 INFO L225 Difference]: With dead ends: 237
[2023-12-24 14:18:27,381 INFO L226 Difference]: Without dead ends: 119
[2023-12-24 14:18:27,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:27,382 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 115 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:27,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 291 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-24 14:18:27,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2023-12-24 14:18:27,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119.
[2023-12-24 14:18:27,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:27,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 154 transitions.
[2023-12-24 14:18:27,388 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 154 transitions. Word has length 133
[2023-12-24 14:18:27,389 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:27,389 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 154 transitions.
[2023-12-24 14:18:27,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:27,389 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 154 transitions.
[2023-12-24 14:18:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-12-24 14:18:27,390 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:27,390 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:27,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:27,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:27,596 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:27,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:27,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1585361425, now seen corresponding path program 1 times
[2023-12-24 14:18:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:27,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1454231000]
[2023-12-24 14:18:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:27,597 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
[2023-12-24 14:18:27,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:27,598 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:27,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-12-24 14:18:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:27,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-24 14:18:27,829 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:27,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2023-12-24 14:18:27,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 treesize of output 28
[2023-12-24 14:18:28,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:18:28,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:28,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 77 treesize of output 61
[2023-12-24 14:18:28,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:28,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 79 treesize of output 81
[2023-12-24 14:18:28,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:28,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 32
[2023-12-24 14:18:28,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:28,894 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 93 treesize of output 49
[2023-12-24 14:18:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 259 proven. 60 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked.
[2023-12-24 14:18:28,955 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:29,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:29,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1454231000]
[2023-12-24 14:18:29,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1454231000] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:29,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:29,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20
[2023-12-24 14:18:29,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900952993]
[2023-12-24 14:18:29,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:29,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380
[2023-12-24 14:18:29,134 INFO L87 Difference]: Start difference. First operand 119 states and 154 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:29,391 INFO L93 Difference]: Finished difference Result 360 states and 467 transitions.
[2023-12-24 14:18:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-24 14:18:29,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133
[2023-12-24 14:18:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:29,393 INFO L225 Difference]: With dead ends: 360
[2023-12-24 14:18:29,394 INFO L226 Difference]: Without dead ends: 242
[2023-12-24 14:18:29,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420
[2023-12-24 14:18:29,394 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 138 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:29,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 661 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2023-12-24 14:18:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 119.
[2023-12-24 14:18:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 96 states have internal predecessors, (119), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17)
[2023-12-24 14:18:29,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions.
[2023-12-24 14:18:29,403 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 133
[2023-12-24 14:18:29,403 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:29,403 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions.
[2023-12-24 14:18:29,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions.
[2023-12-24 14:18:29,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-24 14:18:29,404 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:29,404 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:29,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:29,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:29,610 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:29,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:29,610 INFO L85 PathProgramCache]: Analyzing trace with hash 805552459, now seen corresponding path program 1 times
[2023-12-24 14:18:29,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1076801539]
[2023-12-24 14:18:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:29,611 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
[2023-12-24 14:18:29,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:29,612 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:29,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-24 14:18:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:29,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 35 conjunts are in the unsatisfiable core
[2023-12-24 14:18:29,876 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:29,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8
[2023-12-24 14:18:30,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22
[2023-12-24 14:18:31,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:18:31,222 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:31,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 105 treesize of output 75
[2023-12-24 14:18:31,383 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 24 treesize of output 12
[2023-12-24 14:18:31,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:31,774 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 144 treesize of output 78
[2023-12-24 14:18:31,866 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 296 proven. 96 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked.
[2023-12-24 14:18:31,866 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:32,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:32,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1076801539]
[2023-12-24 14:18:32,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1076801539] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:32,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:32,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 30
[2023-12-24 14:18:32,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402712159]
[2023-12-24 14:18:32,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:32,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 14:18:32,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:32,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 14:18:32,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=728, Unknown=0, NotChecked=0, Total=870
[2023-12-24 14:18:32,380 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:32,696 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions.
[2023-12-24 14:18:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-24 14:18:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134
[2023-12-24 14:18:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:32,697 INFO L225 Difference]: With dead ends: 342
[2023-12-24 14:18:32,697 INFO L226 Difference]: Without dead ends: 224
[2023-12-24 14:18:32,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122
[2023-12-24 14:18:32,698 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 241 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:32,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 763 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states.
[2023-12-24 14:18:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 204.
[2023-12-24 14:18:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 171 states have (on average 1.239766081871345) internal successors, (212), 172 states have internal predecessors, (212), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 14:18:32,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 256 transitions.
[2023-12-24 14:18:32,710 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 256 transitions. Word has length 134
[2023-12-24 14:18:32,710 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:32,710 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 256 transitions.
[2023-12-24 14:18:32,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:32,710 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 256 transitions.
[2023-12-24 14:18:32,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-12-24 14:18:32,711 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:32,711 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:32,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:32,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:32,919 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:32,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:32,920 INFO L85 PathProgramCache]: Analyzing trace with hash -907980127, now seen corresponding path program 1 times
[2023-12-24 14:18:32,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:32,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408796284]
[2023-12-24 14:18:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:32,920 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
[2023-12-24 14:18:32,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:32,921 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:32,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-24 14:18:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:33,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 14:18:33,194 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:33,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8
[2023-12-24 14:18:33,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 46 treesize of output 22
[2023-12-24 14:18:33,666 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 47 treesize of output 31
[2023-12-24 14:18:33,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2023-12-24 14:18:33,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 48 treesize of output 41
[2023-12-24 14:18:33,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:33,886 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 34 treesize of output 16
[2023-12-24 14:18:33,889 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 29 treesize of output 17
[2023-12-24 14:18:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 264 proven. 60 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2023-12-24 14:18:33,976 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:34,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408796284]
[2023-12-24 14:18:34,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408796284] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:34,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:34,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18
[2023-12-24 14:18:34,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418564600]
[2023-12-24 14:18:34,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:34,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:34,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:34,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:34,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306
[2023-12-24 14:18:34,135 INFO L87 Difference]: Start difference. First operand 204 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:34,427 INFO L93 Difference]: Finished difference Result 565 states and 708 transitions.
[2023-12-24 14:18:34,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:34,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134
[2023-12-24 14:18:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:34,430 INFO L225 Difference]: With dead ends: 565
[2023-12-24 14:18:34,431 INFO L226 Difference]: Without dead ends: 362
[2023-12-24 14:18:34,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342
[2023-12-24 14:18:34,433 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 194 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:34,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 327 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2023-12-24 14:18:34,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 204.
[2023-12-24 14:18:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 171 states have (on average 1.2280701754385965) internal successors, (210), 172 states have internal predecessors, (210), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22)
[2023-12-24 14:18:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions.
[2023-12-24 14:18:34,449 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 134
[2023-12-24 14:18:34,451 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:34,451 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions.
[2023-12-24 14:18:34,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions.
[2023-12-24 14:18:34,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 14:18:34,452 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:34,452 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:34,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:34,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:34,661 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:34,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:34,661 INFO L85 PathProgramCache]: Analyzing trace with hash -781227606, now seen corresponding path program 1 times
[2023-12-24 14:18:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:34,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463708135]
[2023-12-24 14:18:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:34,662 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
[2023-12-24 14:18:34,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:34,663 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:34,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-24 14:18:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:34,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-24 14:18:34,986 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:34,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-24 14:18:34,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:34,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:34,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:35,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:35,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 43 treesize of output 49
[2023-12-24 14:18:35,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:35,033 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 132 treesize of output 66
[2023-12-24 14:18:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:35,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:35,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:35,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463708135]
[2023-12-24 14:18:35,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463708135] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:35,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:35,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-24 14:18:35,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104717392]
[2023-12-24 14:18:35,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:35,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-24 14:18:35,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-24 14:18:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-12-24 14:18:35,066 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:35,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:35,367 INFO L93 Difference]: Finished difference Result 614 states and 767 transitions.
[2023-12-24 14:18:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-24 14:18:35,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135
[2023-12-24 14:18:35,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:35,370 INFO L225 Difference]: With dead ends: 614
[2023-12-24 14:18:35,370 INFO L226 Difference]: Without dead ends: 411
[2023-12-24 14:18:35,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2023-12-24 14:18:35,371 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 200 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:35,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1017 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:35,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states.
[2023-12-24 14:18:35,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 351.
[2023-12-24 14:18:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 294 states have (on average 1.227891156462585) internal successors, (361), 297 states have internal predecessors, (361), 36 states have call successors, (36), 20 states have call predecessors, (36), 20 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-24 14:18:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 433 transitions.
[2023-12-24 14:18:35,396 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 433 transitions. Word has length 135
[2023-12-24 14:18:35,396 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:35,396 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 433 transitions.
[2023-12-24 14:18:35,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 433 transitions.
[2023-12-24 14:18:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 14:18:35,397 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:35,397 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:35,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0
[2023-12-24 14:18:35,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:35,604 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:35,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:35,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1802295960, now seen corresponding path program 1 times
[2023-12-24 14:18:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743134310]
[2023-12-24 14:18:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:35,605 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
[2023-12-24 14:18:35,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:35,606 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:35,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2023-12-24 14:18:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:35,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:18:35,783 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:35,799 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 18 treesize of output 10
[2023-12-24 14:18:35,808 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:35,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:35,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:35,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743134310]
[2023-12-24 14:18:35,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743134310] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:35,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:35,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:18:35,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984277631]
[2023-12-24 14:18:35,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:35,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:35,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:35,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:35,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:18:35,810 INFO L87 Difference]: Start difference. First operand 351 states and 433 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:36,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:36,770 INFO L93 Difference]: Finished difference Result 693 states and 855 transitions.
[2023-12-24 14:18:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:36,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135
[2023-12-24 14:18:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:36,772 INFO L225 Difference]: With dead ends: 693
[2023-12-24 14:18:36,772 INFO L226 Difference]: Without dead ends: 343
[2023-12-24 14:18:36,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:36,773 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 144 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:36,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 340 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-24 14:18:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states.
[2023-12-24 14:18:36,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343.
[2023-12-24 14:18:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 286 states have (on average 1.2202797202797202) internal successors, (349), 289 states have internal predecessors, (349), 36 states have call successors, (36), 20 states have call predecessors, (36), 20 states have return successors, (36), 33 states have call predecessors, (36), 36 states have call successors, (36)
[2023-12-24 14:18:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 421 transitions.
[2023-12-24 14:18:36,796 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 421 transitions. Word has length 135
[2023-12-24 14:18:36,797 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:36,797 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 421 transitions.
[2023-12-24 14:18:36,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 421 transitions.
[2023-12-24 14:18:36,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-12-24 14:18:36,797 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:36,798 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:36,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0
[2023-12-24 14:18:37,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:37,004 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:37,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:37,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1744757515, now seen corresponding path program 1 times
[2023-12-24 14:18:37,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:37,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1922031077]
[2023-12-24 14:18:37,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:37,005 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
[2023-12-24 14:18:37,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:37,006 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:37,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2023-12-24 14:18:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:37,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-24 14:18:37,261 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:37,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:37,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:37,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 33 treesize of output 32
[2023-12-24 14:18:37,343 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 27 treesize of output 19
[2023-12-24 14:18:37,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:37,347 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 35 treesize of output 17
[2023-12-24 14:18:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:38,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:38,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:38,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1922031077]
[2023-12-24 14:18:38,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1922031077] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:38,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:38,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:18:38,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529272568]
[2023-12-24 14:18:38,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:38,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:18:38,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:38,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:18:38,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:38,413 INFO L87 Difference]: Start difference. First operand 343 states and 421 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:40,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2023-12-24 14:18:43,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2023-12-24 14:18:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:43,384 INFO L93 Difference]: Finished difference Result 774 states and 949 transitions.
[2023-12-24 14:18:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-24 14:18:43,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135
[2023-12-24 14:18:43,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:43,386 INFO L225 Difference]: With dead ends: 774
[2023-12-24 14:18:43,386 INFO L226 Difference]: Without dead ends: 432
[2023-12-24 14:18:43,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2023-12-24 14:18:43,387 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 235 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:43,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 706 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 235 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time]
[2023-12-24 14:18:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states.
[2023-12-24 14:18:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 375.
[2023-12-24 14:18:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 304 states have (on average 1.200657894736842) internal successors, (365), 307 states have internal predecessors, (365), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48)
[2023-12-24 14:18:43,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 461 transitions.
[2023-12-24 14:18:43,418 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 461 transitions. Word has length 135
[2023-12-24 14:18:43,418 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:43,418 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 461 transitions.
[2023-12-24 14:18:43,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 461 transitions.
[2023-12-24 14:18:43,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2023-12-24 14:18:43,419 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:43,419 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:43,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:43,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:43,625 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:43,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:43,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1901979633, now seen corresponding path program 1 times
[2023-12-24 14:18:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:43,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675914399]
[2023-12-24 14:18:43,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:43,626 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
[2023-12-24 14:18:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:43,627 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:43,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-24 14:18:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:43,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 14:18:43,827 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:43,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:43,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:43,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675914399]
[2023-12-24 14:18:43,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675914399] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:43,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:43,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:18:43,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704039317]
[2023-12-24 14:18:43,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:43,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:18:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:18:43,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:43,845 INFO L87 Difference]: Start difference. First operand 375 states and 461 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:43,951 INFO L93 Difference]: Finished difference Result 833 states and 1033 transitions.
[2023-12-24 14:18:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-24 14:18:43,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136
[2023-12-24 14:18:43,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:43,982 INFO L225 Difference]: With dead ends: 833
[2023-12-24 14:18:43,982 INFO L226 Difference]: Without dead ends: 459
[2023-12-24 14:18:43,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-24 14:18:43,983 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 80 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:43,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 604 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:18:43,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states.
[2023-12-24 14:18:44,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 385.
[2023-12-24 14:18:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 314 states have (on average 1.194267515923567) internal successors, (375), 317 states have internal predecessors, (375), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48)
[2023-12-24 14:18:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 471 transitions.
[2023-12-24 14:18:44,009 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 471 transitions. Word has length 136
[2023-12-24 14:18:44,010 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:44,010 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 471 transitions.
[2023-12-24 14:18:44,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 471 transitions.
[2023-12-24 14:18:44,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:44,010 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:44,011 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:44,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:44,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:44,224 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:44,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:44,225 INFO L85 PathProgramCache]: Analyzing trace with hash 636866010, now seen corresponding path program 1 times
[2023-12-24 14:18:44,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:44,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633645857]
[2023-12-24 14:18:44,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:44,225 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
[2023-12-24 14:18:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:44,226 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:44,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-24 14:18:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:44,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-24 14:18:44,506 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:44,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-24 14:18:44,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 38 treesize of output 18
[2023-12-24 14:18:44,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:18:44,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:44,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 67 treesize of output 57
[2023-12-24 14:18:44,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 31 treesize of output 30
[2023-12-24 14:18:45,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:45,313 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 70 treesize of output 46
[2023-12-24 14:18:45,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:45,317 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 92 treesize of output 52
[2023-12-24 14:18:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 259 proven. 60 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked.
[2023-12-24 14:18:45,346 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:45,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:45,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633645857]
[2023-12-24 14:18:45,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633645857] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:45,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:45,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 17
[2023-12-24 14:18:45,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585007010]
[2023-12-24 14:18:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:45,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:18:45,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:18:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2023-12-24 14:18:45,506 INFO L87 Difference]: Start difference. First operand 385 states and 471 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:45,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:45,682 INFO L93 Difference]: Finished difference Result 435 states and 526 transitions.
[2023-12-24 14:18:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:18:45,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138
[2023-12-24 14:18:45,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:45,684 INFO L225 Difference]: With dead ends: 435
[2023-12-24 14:18:45,684 INFO L226 Difference]: Without dead ends: 433
[2023-12-24 14:18:45,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342
[2023-12-24 14:18:45,685 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 63 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:45,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 442 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:18:45,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2023-12-24 14:18:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432.
[2023-12-24 14:18:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 350 states have (on average 1.1828571428571428) internal successors, (414), 354 states have internal predecessors, (414), 53 states have call successors, (53), 28 states have call predecessors, (53), 28 states have return successors, (53), 49 states have call predecessors, (53), 53 states have call successors, (53)
[2023-12-24 14:18:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 520 transitions.
[2023-12-24 14:18:45,714 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 520 transitions. Word has length 138
[2023-12-24 14:18:45,714 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:45,714 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 520 transitions.
[2023-12-24 14:18:45,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:45,714 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 520 transitions.
[2023-12-24 14:18:45,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:45,715 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:45,715 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:45,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:45,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:45,922 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:45,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:45,923 INFO L85 PathProgramCache]: Analyzing trace with hash 636925592, now seen corresponding path program 1 times
[2023-12-24 14:18:45,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:45,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826041421]
[2023-12-24 14:18:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:45,923 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
[2023-12-24 14:18:45,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:45,924 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:45,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2023-12-24 14:18:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:46,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-24 14:18:46,196 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:46,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:46,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 121 treesize of output 61
[2023-12-24 14:18:46,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:46,907 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 203 treesize of output 77
[2023-12-24 14:18:46,940 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 208 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-12-24 14:18:46,940 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:47,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826041421]
[2023-12-24 14:18:47,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826041421] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2094608561]
[2023-12-24 14:18:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:47,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 14:18:47,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 14:18:47,073 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 14:18:47,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process
[2023-12-24 14:18:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:47,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 14:18:47,667 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:47,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2023-12-24 14:18:48,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 59
[2023-12-24 14:18:49,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:49,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 77
[2023-12-24 14:18:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-12-24 14:18:49,093 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:49,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2094608561] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:49,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:49,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 16
[2023-12-24 14:18:49,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544325057]
[2023-12-24 14:18:49,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:49,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-24 14:18:49,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-24 14:18:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342
[2023-12-24 14:18:49,094 INFO L87 Difference]: Start difference. First operand 432 states and 520 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:50,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:50,068 INFO L93 Difference]: Finished difference Result 1240 states and 1499 transitions.
[2023-12-24 14:18:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-24 14:18:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138
[2023-12-24 14:18:50,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:50,071 INFO L225 Difference]: With dead ends: 1240
[2023-12-24 14:18:50,071 INFO L226 Difference]: Without dead ends: 840
[2023-12-24 14:18:50,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552
[2023-12-24 14:18:50,072 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 241 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:50,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1388 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-24 14:18:50,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states.
[2023-12-24 14:18:50,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 675.
[2023-12-24 14:18:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 552 states have (on average 1.1956521739130435) internal successors, (660), 560 states have internal predecessors, (660), 86 states have call successors, (86), 36 states have call predecessors, (86), 36 states have return successors, (86), 78 states have call predecessors, (86), 86 states have call successors, (86)
[2023-12-24 14:18:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 832 transitions.
[2023-12-24 14:18:50,123 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 832 transitions. Word has length 138
[2023-12-24 14:18:50,124 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:50,124 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 832 transitions.
[2023-12-24 14:18:50,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 832 transitions.
[2023-12-24 14:18:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:50,126 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:50,126 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:50,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:50,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:50,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:50,531 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:50,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:50,532 INFO L85 PathProgramCache]: Analyzing trace with hash 694183894, now seen corresponding path program 1 times
[2023-12-24 14:18:50,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:50,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956934541]
[2023-12-24 14:18:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:50,532 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
[2023-12-24 14:18:50,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:50,533 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:50,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2023-12-24 14:18:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:50,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-24 14:18:50,818 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:50,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10
[2023-12-24 14:18:50,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23
[2023-12-24 14:18:51,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:51,054 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 72 treesize of output 38
[2023-12-24 14:18:51,069 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked.
[2023-12-24 14:18:51,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:51,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:51,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956934541]
[2023-12-24 14:18:51,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956934541] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:51,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:51,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-12-24 14:18:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270620832]
[2023-12-24 14:18:51,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 14:18:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:51,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 14:18:51,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2023-12-24 14:18:51,071 INFO L87 Difference]: Start difference. First operand 675 states and 832 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:51,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:51,717 INFO L93 Difference]: Finished difference Result 1397 states and 1722 transitions.
[2023-12-24 14:18:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2023-12-24 14:18:51,718 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138
[2023-12-24 14:18:51,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:51,720 INFO L225 Difference]: With dead ends: 1397
[2023-12-24 14:18:51,720 INFO L226 Difference]: Without dead ends: 757
[2023-12-24 14:18:51,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2023-12-24 14:18:51,721 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 416 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:51,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 702 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-24 14:18:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states.
[2023-12-24 14:18:51,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 747.
[2023-12-24 14:18:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 594 states have (on average 1.1683501683501682) internal successors, (694), 602 states have internal predecessors, (694), 110 states have call successors, (110), 42 states have call predecessors, (110), 42 states have return successors, (110), 102 states have call predecessors, (110), 110 states have call successors, (110)
[2023-12-24 14:18:51,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 914 transitions.
[2023-12-24 14:18:51,790 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 914 transitions. Word has length 138
[2023-12-24 14:18:51,790 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:51,790 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 914 transitions.
[2023-12-24 14:18:51,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 914 transitions.
[2023-12-24 14:18:51,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:51,791 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:51,792 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:51,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:51,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:51,998 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:51,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash -115162732, now seen corresponding path program 1 times
[2023-12-24 14:18:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472775061]
[2023-12-24 14:18:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:51,999 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
[2023-12-24 14:18:51,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:52,000 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:52,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2023-12-24 14:18:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:52,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-24 14:18:52,255 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:52,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:52,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 37 treesize of output 30
[2023-12-24 14:18:53,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:53,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 45 treesize of output 41
[2023-12-24 14:18:53,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:53,262 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 76 treesize of output 38
[2023-12-24 14:18:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 34 proven. 90 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked.
[2023-12-24 14:18:53,326 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:53,685 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:53,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:53,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472775061]
[2023-12-24 14:18:53,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472775061] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:18:53,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:18:53,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 23
[2023-12-24 14:18:53,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337538549]
[2023-12-24 14:18:53,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:53,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 14:18:53,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:53,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 14:18:53,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506
[2023-12-24 14:18:53,687 INFO L87 Difference]: Start difference. First operand 747 states and 914 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:54,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:54,124 INFO L93 Difference]: Finished difference Result 1749 states and 2125 transitions.
[2023-12-24 14:18:54,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-12-24 14:18:54,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138
[2023-12-24 14:18:54,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:54,128 INFO L225 Difference]: With dead ends: 1749
[2023-12-24 14:18:54,128 INFO L226 Difference]: Without dead ends: 1085
[2023-12-24 14:18:54,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=116, Invalid=696, Unknown=0, NotChecked=0, Total=812
[2023-12-24 14:18:54,130 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 123 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:54,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 849 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:18:54,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states.
[2023-12-24 14:18:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 875.
[2023-12-24 14:18:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 722 states have (on average 1.1759002770083102) internal successors, (849), 730 states have internal predecessors, (849), 110 states have call successors, (110), 42 states have call predecessors, (110), 42 states have return successors, (110), 102 states have call predecessors, (110), 110 states have call successors, (110)
[2023-12-24 14:18:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1069 transitions.
[2023-12-24 14:18:54,222 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1069 transitions. Word has length 138
[2023-12-24 14:18:54,223 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:54,223 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1069 transitions.
[2023-12-24 14:18:54,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:54,223 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1069 transitions.
[2023-12-24 14:18:54,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:54,224 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:54,224 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:54,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:54,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:54,430 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:54,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash 143002706, now seen corresponding path program 1 times
[2023-12-24 14:18:54,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:54,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60973243]
[2023-12-24 14:18:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:54,431 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
[2023-12-24 14:18:54,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:54,432 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:54,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2023-12-24 14:18:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:54,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-24 14:18:54,687 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:54,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:55,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 38 treesize of output 20
[2023-12-24 14:18:55,109 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 50 treesize of output 26
[2023-12-24 14:18:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 148 proven. 78 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked.
[2023-12-24 14:18:55,121 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:18:55,359 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked.
[2023-12-24 14:18:55,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:55,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60973243]
[2023-12-24 14:18:55,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60973243] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-24 14:18:55,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:18:55,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 15
[2023-12-24 14:18:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385818641]
[2023-12-24 14:18:55,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:18:55,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-12-24 14:18:55,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-12-24 14:18:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210
[2023-12-24 14:18:55,361 INFO L87 Difference]: Start difference. First operand 875 states and 1069 transitions. Second operand has 15 states, 11 states have (on average 9.636363636363637) internal successors, (106), 15 states have internal predecessors, (106), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:55,868 INFO L93 Difference]: Finished difference Result 1667 states and 2031 transitions.
[2023-12-24 14:18:55,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-12-24 14:18:55,869 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 9.636363636363637) internal successors, (106), 15 states have internal predecessors, (106), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32) Word has length 138
[2023-12-24 14:18:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:55,872 INFO L225 Difference]: With dead ends: 1667
[2023-12-24 14:18:55,872 INFO L226 Difference]: Without dead ends: 875
[2023-12-24 14:18:55,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 260 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506
[2023-12-24 14:18:55,873 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 302 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:55,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 540 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-24 14:18:55,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states.
[2023-12-24 14:18:55,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 871.
[2023-12-24 14:18:55,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 718 states have (on average 1.16016713091922) internal successors, (833), 726 states have internal predecessors, (833), 110 states have call successors, (110), 42 states have call predecessors, (110), 42 states have return successors, (110), 102 states have call predecessors, (110), 110 states have call successors, (110)
[2023-12-24 14:18:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1053 transitions.
[2023-12-24 14:18:55,945 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1053 transitions. Word has length 138
[2023-12-24 14:18:55,945 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:55,945 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1053 transitions.
[2023-12-24 14:18:55,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 9.636363636363637) internal successors, (106), 15 states have internal predecessors, (106), 7 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 7 states have call successors, (32)
[2023-12-24 14:18:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1053 transitions.
[2023-12-24 14:18:55,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:55,946 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:55,946 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:55,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:56,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:56,153 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:56,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:56,153 INFO L85 PathProgramCache]: Analyzing trace with hash -586738371, now seen corresponding path program 1 times
[2023-12-24 14:18:56,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:56,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494500548]
[2023-12-24 14:18:56,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:56,154 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
[2023-12-24 14:18:56,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:56,155 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:56,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process
[2023-12-24 14:18:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:56,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-24 14:18:56,373 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:57,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 61
[2023-12-24 14:18:57,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:57,480 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 127 treesize of output 49
[2023-12-24 14:18:57,534 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-12-24 14:18:57,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:57,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:57,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494500548]
[2023-12-24 14:18:57,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494500548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:57,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:57,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-12-24 14:18:57,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875791828]
[2023-12-24 14:18:57,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:57,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2023-12-24 14:18:57,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:57,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-12-24 14:18:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2023-12-24 14:18:57,536 INFO L87 Difference]: Start difference. First operand 871 states and 1053 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:58,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:58,590 INFO L93 Difference]: Finished difference Result 1805 states and 2150 transitions.
[2023-12-24 14:18:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-12-24 14:18:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138
[2023-12-24 14:18:58,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:58,593 INFO L225 Difference]: With dead ends: 1805
[2023-12-24 14:18:58,593 INFO L226 Difference]: Without dead ends: 1017
[2023-12-24 14:18:58,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156
[2023-12-24 14:18:58,595 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 241 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:58,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1022 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-12-24 14:18:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states.
[2023-12-24 14:18:58,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 851.
[2023-12-24 14:18:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 698 states have (on average 1.1475644699140402) internal successors, (801), 706 states have internal predecessors, (801), 110 states have call successors, (110), 42 states have call predecessors, (110), 42 states have return successors, (110), 102 states have call predecessors, (110), 110 states have call successors, (110)
[2023-12-24 14:18:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1021 transitions.
[2023-12-24 14:18:58,673 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1021 transitions. Word has length 138
[2023-12-24 14:18:58,673 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:58,673 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1021 transitions.
[2023-12-24 14:18:58,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 9 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:18:58,674 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1021 transitions.
[2023-12-24 14:18:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:58,674 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:58,675 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:58,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:58,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:58,883 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:18:58,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:18:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1969797324, now seen corresponding path program 1 times
[2023-12-24 14:18:58,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:18:58,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019338053]
[2023-12-24 14:18:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:18:58,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:18:58,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:18:58,886 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:18:58,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process
[2023-12-24 14:18:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:18:59,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-24 14:18:59,157 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:18:59,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-24 14:18:59,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:18:59,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 32 treesize of output 31
[2023-12-24 14:18:59,233 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 26 treesize of output 18
[2023-12-24 14:18:59,237 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:18:59,237 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 34 treesize of output 16
[2023-12-24 14:18:59,258 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:18:59,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:18:59,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:18:59,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019338053]
[2023-12-24 14:18:59,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019338053] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:18:59,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:18:59,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:18:59,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213596814]
[2023-12-24 14:18:59,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:18:59,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:18:59,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:18:59,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:18:59,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:18:59,260 INFO L87 Difference]: Start difference. First operand 851 states and 1021 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:18:59,717 INFO L93 Difference]: Finished difference Result 1605 states and 1905 transitions.
[2023-12-24 14:18:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-24 14:18:59,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 138
[2023-12-24 14:18:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:18:59,720 INFO L225 Difference]: With dead ends: 1605
[2023-12-24 14:18:59,720 INFO L226 Difference]: Without dead ends: 837
[2023-12-24 14:18:59,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2023-12-24 14:18:59,722 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 200 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-24 14:18:59,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 685 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-24 14:18:59,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states.
[2023-12-24 14:18:59,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 687.
[2023-12-24 14:18:59,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 558 states have (on average 1.1236559139784945) internal successors, (627), 564 states have internal predecessors, (627), 92 states have call successors, (92), 36 states have call predecessors, (92), 36 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-24 14:18:59,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 811 transitions.
[2023-12-24 14:18:59,792 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 811 transitions. Word has length 138
[2023-12-24 14:18:59,792 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:18:59,792 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 811 transitions.
[2023-12-24 14:18:59,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:18:59,792 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 811 transitions.
[2023-12-24 14:18:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-12-24 14:18:59,793 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:18:59,793 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:18:59,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0
[2023-12-24 14:18:59,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:00,000 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:00,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:00,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1108281942, now seen corresponding path program 1 times
[2023-12-24 14:19:00,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:00,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034095243]
[2023-12-24 14:19:00,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:00,001 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
[2023-12-24 14:19:00,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:00,002 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:00,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process
[2023-12-24 14:19:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:00,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-24 14:19:00,191 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked.
[2023-12-24 14:19:00,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:00,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:00,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1034095243]
[2023-12-24 14:19:00,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1034095243] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:00,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:00,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-24 14:19:00,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68919767]
[2023-12-24 14:19:00,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:00,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-24 14:19:00,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-24 14:19:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-24 14:19:00,199 INFO L87 Difference]: Start difference. First operand 687 states and 811 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:19:00,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:00,298 INFO L93 Difference]: Finished difference Result 1332 states and 1574 transitions.
[2023-12-24 14:19:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:19:00,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138
[2023-12-24 14:19:00,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:00,301 INFO L225 Difference]: With dead ends: 1332
[2023-12-24 14:19:00,301 INFO L226 Difference]: Without dead ends: 703
[2023-12-24 14:19:00,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:19:00,302 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 7 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:00,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 363 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-24 14:19:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states.
[2023-12-24 14:19:00,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 687.
[2023-12-24 14:19:00,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 558 states have (on average 1.1164874551971327) internal successors, (623), 564 states have internal predecessors, (623), 92 states have call successors, (92), 36 states have call predecessors, (92), 36 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-24 14:19:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 807 transitions.
[2023-12-24 14:19:00,377 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 807 transitions. Word has length 138
[2023-12-24 14:19:00,377 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:00,377 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 807 transitions.
[2023-12-24 14:19:00,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-12-24 14:19:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 807 transitions.
[2023-12-24 14:19:00,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-12-24 14:19:00,378 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:00,378 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:00,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:00,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:00,584 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:00,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:00,584 INFO L85 PathProgramCache]: Analyzing trace with hash 682330356, now seen corresponding path program 1 times
[2023-12-24 14:19:00,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:00,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92210900]
[2023-12-24 14:19:00,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:00,585 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
[2023-12-24 14:19:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:00,586 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:00,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process
[2023-12-24 14:19:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:00,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 15 conjunts are in the unsatisfiable core
[2023-12-24 14:19:00,843 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:00,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 22
[2023-12-24 14:19:01,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:01,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 47 treesize of output 30
[2023-12-24 14:19:01,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:19:01,496 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 27 treesize of output 15
[2023-12-24 14:19:01,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:01,500 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 49 treesize of output 25
[2023-12-24 14:19:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 293 proven. 30 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked.
[2023-12-24 14:19:01,521 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:01,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:01,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92210900]
[2023-12-24 14:19:01,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92210900] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:01,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119418070]
[2023-12-24 14:19:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:01,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:01,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 14:19:01,849 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 14:19:01,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process
[2023-12-24 14:19:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:02,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjunts are in the unsatisfiable core
[2023-12-24 14:19:02,353 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:02,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2023-12-24 14:19:02,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:02,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32
[2023-12-24 14:19:03,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:19:03,193 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 27 treesize of output 15
[2023-12-24 14:19:03,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:03,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 25
[2023-12-24 14:19:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 268 proven. 30 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked.
[2023-12-24 14:19:03,251 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:03,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [119418070] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:03,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:19:03,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16
[2023-12-24 14:19:03,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279047699]
[2023-12-24 14:19:03,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:19:03,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2023-12-24 14:19:03,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:03,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2023-12-24 14:19:03,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600
[2023-12-24 14:19:03,437 INFO L87 Difference]: Start difference. First operand 687 states and 807 transitions. Second operand has 17 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 7 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34)
[2023-12-24 14:19:04,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:04,780 INFO L93 Difference]: Finished difference Result 1568 states and 1828 transitions.
[2023-12-24 14:19:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2023-12-24 14:19:04,780 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 7 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34) Word has length 139
[2023-12-24 14:19:04,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:04,783 INFO L225 Difference]: With dead ends: 1568
[2023-12-24 14:19:04,783 INFO L226 Difference]: Without dead ends: 964
[2023-12-24 14:19:04,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 463 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=372, Invalid=1034, Unknown=0, NotChecked=0, Total=1406
[2023-12-24 14:19:04,784 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 229 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:04,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 1248 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-24 14:19:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states.
[2023-12-24 14:19:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 958.
[2023-12-24 14:19:04,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 781 states have (on average 1.120358514724712) internal successors, (875), 787 states have internal predecessors, (875), 122 states have call successors, (122), 54 states have call predecessors, (122), 54 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122)
[2023-12-24 14:19:04,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1119 transitions.
[2023-12-24 14:19:04,874 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1119 transitions. Word has length 139
[2023-12-24 14:19:04,874 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:04,874 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1119 transitions.
[2023-12-24 14:19:04,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 7.0) internal successors, (105), 15 states have internal predecessors, (105), 7 states have call successors, (34), 5 states have call predecessors, (34), 7 states have return successors, (34), 6 states have call predecessors, (34), 7 states have call successors, (34)
[2023-12-24 14:19:04,875 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1119 transitions.
[2023-12-24 14:19:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:04,875 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:04,876 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:04,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:05,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:05,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:05,289 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:05,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash -966794823, now seen corresponding path program 1 times
[2023-12-24 14:19:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:05,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135961919]
[2023-12-24 14:19:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:05,290 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:05,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:05,291 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:05,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process
[2023-12-24 14:19:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:05,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 14:19:05,562 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:05,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2023-12-24 14:19:05,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 24 treesize of output 23
[2023-12-24 14:19:05,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16
[2023-12-24 14:19:05,907 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 27 treesize of output 15
[2023-12-24 14:19:05,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:05,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 54 treesize of output 48
[2023-12-24 14:19:06,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:06,131 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 94 treesize of output 50
[2023-12-24 14:19:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 33 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked.
[2023-12-24 14:19:06,200 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:06,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:06,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135961919]
[2023-12-24 14:19:06,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135961919] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:06,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:06,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 20
[2023-12-24 14:19:06,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500708146]
[2023-12-24 14:19:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:06,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-12-24 14:19:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-12-24 14:19:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380
[2023-12-24 14:19:06,333 INFO L87 Difference]: Start difference. First operand 958 states and 1119 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:06,858 INFO L93 Difference]: Finished difference Result 2441 states and 2829 transitions.
[2023-12-24 14:19:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2023-12-24 14:19:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:06,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:06,863 INFO L225 Difference]: With dead ends: 2441
[2023-12-24 14:19:06,863 INFO L226 Difference]: Without dead ends: 1574
[2023-12-24 14:19:06,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=995, Unknown=0, NotChecked=0, Total=1190
[2023-12-24 14:19:06,865 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 248 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:06,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 1120 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states.
[2023-12-24 14:19:06,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1039.
[2023-12-24 14:19:06,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 862 states have (on average 1.1264501160092808) internal successors, (971), 868 states have internal predecessors, (971), 122 states have call successors, (122), 54 states have call predecessors, (122), 54 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122)
[2023-12-24 14:19:06,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1215 transitions.
[2023-12-24 14:19:06,959 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1215 transitions. Word has length 140
[2023-12-24 14:19:06,959 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:06,959 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1215 transitions.
[2023-12-24 14:19:06,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:06,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1215 transitions.
[2023-12-24 14:19:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:06,961 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:06,961 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:06,969 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 (32)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:07,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:07,169 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:07,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash 627332564, now seen corresponding path program 1 times
[2023-12-24 14:19:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:07,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383607601]
[2023-12-24 14:19:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:07,170 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
[2023-12-24 14:19:07,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:07,172 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:07,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process
[2023-12-24 14:19:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:07,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-24 14:19:07,414 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:07,430 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked.
[2023-12-24 14:19:07,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:07,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383607601]
[2023-12-24 14:19:07,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383607601] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:07,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:07,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-24 14:19:07,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933944045]
[2023-12-24 14:19:07,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:07,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:19:07,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:07,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:19:07,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:19:07,432 INFO L87 Difference]: Start difference. First operand 1039 states and 1215 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-12-24 14:19:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:07,653 INFO L93 Difference]: Finished difference Result 2033 states and 2377 transitions.
[2023-12-24 14:19:07,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-24 14:19:07,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140
[2023-12-24 14:19:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:07,657 INFO L225 Difference]: With dead ends: 2033
[2023-12-24 14:19:07,657 INFO L226 Difference]: Without dead ends: 1047
[2023-12-24 14:19:07,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2023-12-24 14:19:07,659 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 6 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:07,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 470 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:19:07,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states.
[2023-12-24 14:19:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 1039.
[2023-12-24 14:19:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 862 states have (on average 1.1206496519721578) internal successors, (966), 868 states have internal predecessors, (966), 122 states have call successors, (122), 54 states have call predecessors, (122), 54 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122)
[2023-12-24 14:19:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1210 transitions.
[2023-12-24 14:19:07,756 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1210 transitions. Word has length 140
[2023-12-24 14:19:07,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:07,756 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1210 transitions.
[2023-12-24 14:19:07,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-12-24 14:19:07,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1210 transitions.
[2023-12-24 14:19:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:07,757 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:07,757 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:07,763 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 (33)] Ended with exit code 0
[2023-12-24 14:19:07,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:07,963 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:07,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:07,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2020271790, now seen corresponding path program 1 times
[2023-12-24 14:19:07,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:07,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77923512]
[2023-12-24 14:19:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:07,964 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:07,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:07,965 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:07,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process
[2023-12-24 14:19:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:08,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 14:19:08,273 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:08,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:19:09,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:09,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:09,369 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 195 treesize of output 75
[2023-12-24 14:19:09,411 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:09,412 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:09,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:09,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77923512]
[2023-12-24 14:19:09,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77923512] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:09,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:09,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16
[2023-12-24 14:19:09,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460956555]
[2023-12-24 14:19:09,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:09,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-24 14:19:09,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-24 14:19:09,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240
[2023-12-24 14:19:09,551 INFO L87 Difference]: Start difference. First operand 1039 states and 1210 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:09,831 INFO L93 Difference]: Finished difference Result 2167 states and 2504 transitions.
[2023-12-24 14:19:09,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-24 14:19:09,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:09,843 INFO L225 Difference]: With dead ends: 2167
[2023-12-24 14:19:09,844 INFO L226 Difference]: Without dead ends: 1219
[2023-12-24 14:19:09,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306
[2023-12-24 14:19:09,845 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 94 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:09,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 488 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:19:09,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states.
[2023-12-24 14:19:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1039.
[2023-12-24 14:19:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 862 states have (on average 1.1299303944315546) internal successors, (974), 868 states have internal predecessors, (974), 122 states have call successors, (122), 54 states have call predecessors, (122), 54 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122)
[2023-12-24 14:19:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1218 transitions.
[2023-12-24 14:19:09,951 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1218 transitions. Word has length 140
[2023-12-24 14:19:09,951 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:09,952 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1218 transitions.
[2023-12-24 14:19:09,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1218 transitions.
[2023-12-24 14:19:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:09,953 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:09,953 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:09,959 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0
[2023-12-24 14:19:10,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:10,160 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:10,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:10,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1051031543, now seen corresponding path program 1 times
[2023-12-24 14:19:10,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280723480]
[2023-12-24 14:19:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:10,160 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
[2023-12-24 14:19:10,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:10,161 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:10,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process
[2023-12-24 14:19:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:10,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:19:10,382 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:10,428 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 45 treesize of output 21
[2023-12-24 14:19:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:10,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:10,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:10,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280723480]
[2023-12-24 14:19:10,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280723480] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:10,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:10,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:19:10,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538513967]
[2023-12-24 14:19:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:10,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:10,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:10,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:19:10,447 INFO L87 Difference]: Start difference. First operand 1039 states and 1218 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:10,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:10,872 INFO L93 Difference]: Finished difference Result 2461 states and 2859 transitions.
[2023-12-24 14:19:10,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-24 14:19:10,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:10,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:10,877 INFO L225 Difference]: With dead ends: 2461
[2023-12-24 14:19:10,877 INFO L226 Difference]: Without dead ends: 1513
[2023-12-24 14:19:10,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:19:10,878 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 123 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:10,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 378 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states.
[2023-12-24 14:19:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1028.
[2023-12-24 14:19:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 805 states have (on average 1.1006211180124224) internal successors, (886), 813 states have internal predecessors, (886), 152 states have call successors, (152), 70 states have call predecessors, (152), 70 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152)
[2023-12-24 14:19:11,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1190 transitions.
[2023-12-24 14:19:11,035 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1190 transitions. Word has length 140
[2023-12-24 14:19:11,035 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:11,035 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1190 transitions.
[2023-12-24 14:19:11,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1190 transitions.
[2023-12-24 14:19:11,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:11,037 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:11,037 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:11,045 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 (35)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:11,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:11,243 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:11,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:11,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1090614279, now seen corresponding path program 1 times
[2023-12-24 14:19:11,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:11,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637329491]
[2023-12-24 14:19:11,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:11,244 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
[2023-12-24 14:19:11,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:11,245 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:11,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process
[2023-12-24 14:19:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:11,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:19:11,462 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:11,517 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 46 treesize of output 22
[2023-12-24 14:19:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:11,533 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:11,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:11,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637329491]
[2023-12-24 14:19:11,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637329491] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:11,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:11,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:19:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408113720]
[2023-12-24 14:19:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:11,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:11,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:19:11,534 INFO L87 Difference]: Start difference. First operand 1028 states and 1190 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:11,987 INFO L93 Difference]: Finished difference Result 2273 states and 2620 transitions.
[2023-12-24 14:19:11,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:19:11,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:11,991 INFO L225 Difference]: With dead ends: 2273
[2023-12-24 14:19:11,992 INFO L226 Difference]: Without dead ends: 1336
[2023-12-24 14:19:11,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:19:11,993 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 120 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:11,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 672 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-24 14:19:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states.
[2023-12-24 14:19:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1020.
[2023-12-24 14:19:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 797 states have (on average 1.096612296110414) internal successors, (874), 805 states have internal predecessors, (874), 152 states have call successors, (152), 70 states have call predecessors, (152), 70 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152)
[2023-12-24 14:19:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1178 transitions.
[2023-12-24 14:19:12,135 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1178 transitions. Word has length 140
[2023-12-24 14:19:12,136 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:12,136 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1178 transitions.
[2023-12-24 14:19:12,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1178 transitions.
[2023-12-24 14:19:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:12,137 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:12,137 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:12,143 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 (36)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:12,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:12,343 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:12,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:12,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1562189918, now seen corresponding path program 1 times
[2023-12-24 14:19:12,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:12,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264639787]
[2023-12-24 14:19:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:12,344 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
[2023-12-24 14:19:12,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:12,345 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-24 14:19:12,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process
[2023-12-24 14:19:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:12,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-24 14:19:12,610 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:13,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:13,541 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:13,615 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264639787]
[2023-12-24 14:19:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264639787] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [994872666]
[2023-12-24 14:19:13,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:13,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 14:19:13,617 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 14:19:13,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process
[2023-12-24 14:19:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:14,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-24 14:19:14,127 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:14,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:14,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [994872666] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:14,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:14,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15
[2023-12-24 14:19:14,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066418929]
[2023-12-24 14:19:14,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:14,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:14,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:14,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306
[2023-12-24 14:19:14,239 INFO L87 Difference]: Start difference. First operand 1020 states and 1178 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:14,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:14,600 INFO L93 Difference]: Finished difference Result 2563 states and 2954 transitions.
[2023-12-24 14:19:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:19:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:14,605 INFO L225 Difference]: With dead ends: 2563
[2023-12-24 14:19:14,605 INFO L226 Difference]: Without dead ends: 1634
[2023-12-24 14:19:14,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342
[2023-12-24 14:19:14,607 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 97 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:14,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 716 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states.
[2023-12-24 14:19:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1154.
[2023-12-24 14:19:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 931 states have (on average 1.1063372717508055) internal successors, (1030), 939 states have internal predecessors, (1030), 152 states have call successors, (152), 70 states have call predecessors, (152), 70 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152)
[2023-12-24 14:19:14,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 1334 transitions.
[2023-12-24 14:19:14,751 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 1334 transitions. Word has length 140
[2023-12-24 14:19:14,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:14,751 INFO L495 AbstractCegarLoop]: Abstraction has 1154 states and 1334 transitions.
[2023-12-24 14:19:14,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 1334 transitions.
[2023-12-24 14:19:14,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:14,752 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:14,752 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:14,761 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 (37)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:14,964 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0
[2023-12-24 14:19:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:15,159 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:15,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1304024480, now seen corresponding path program 1 times
[2023-12-24 14:19:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:15,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677471485]
[2023-12-24 14:19:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:15,160 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
[2023-12-24 14:19:15,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:15,161 INFO L229 MonitoredProcess]: Starting monitored process 39 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)
[2023-12-24 14:19:15,162 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 (39)] Waiting until timeout for monitored process
[2023-12-24 14:19:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:15,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 19 conjunts are in the unsatisfiable core
[2023-12-24 14:19:15,394 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:16,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:16,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:16,285 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 213 treesize of output 87
[2023-12-24 14:19:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:16,309 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:16,368 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677471485]
[2023-12-24 14:19:16,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677471485] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:16,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2042810926]
[2023-12-24 14:19:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:16,369 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-24 14:19:16,370 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-24 14:19:16,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process
[2023-12-24 14:19:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:17,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-24 14:19:17,092 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:17,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:19:18,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:18,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:18,559 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2042810926] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:18,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-24 14:19:18,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 20
[2023-12-24 14:19:18,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142755708]
[2023-12-24 14:19:18,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-24 14:19:18,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2023-12-24 14:19:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:18,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2023-12-24 14:19:18,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506
[2023-12-24 14:19:18,595 INFO L87 Difference]: Start difference. First operand 1154 states and 1334 transitions. Second operand has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 18 states have internal predecessors, (75), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18)
[2023-12-24 14:19:20,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:20,514 INFO L93 Difference]: Finished difference Result 2447 states and 2788 transitions.
[2023-12-24 14:19:20,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states.
[2023-12-24 14:19:20,515 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 18 states have internal predecessors, (75), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140
[2023-12-24 14:19:20,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:20,520 INFO L225 Difference]: With dead ends: 2447
[2023-12-24 14:19:20,520 INFO L226 Difference]: Without dead ends: 1384
[2023-12-24 14:19:20,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 321 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=241, Invalid=949, Unknown=0, NotChecked=0, Total=1190
[2023-12-24 14:19:20,524 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 328 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:20,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 967 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2023-12-24 14:19:20,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states.
[2023-12-24 14:19:20,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1024.
[2023-12-24 14:19:20,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1024 states, 800 states have (on average 1.09375) internal successors, (875), 808 states have internal predecessors, (875), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152)
[2023-12-24 14:19:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1179 transitions.
[2023-12-24 14:19:20,654 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1179 transitions. Word has length 140
[2023-12-24 14:19:20,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:20,654 INFO L495 AbstractCegarLoop]: Abstraction has 1024 states and 1179 transitions.
[2023-12-24 14:19:20,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.9473684210526314) internal successors, (75), 18 states have internal predecessors, (75), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 2 states have call predecessors, (18), 4 states have call successors, (18)
[2023-12-24 14:19:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1179 transitions.
[2023-12-24 14:19:20,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:20,655 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:20,656 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:20,664 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 (39)] Ended with exit code 0
[2023-12-24 14:19:20,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0
[2023-12-24 14:19:21,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2023-12-24 14:19:21,066 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:21,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1584822172, now seen corresponding path program 1 times
[2023-12-24 14:19:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:21,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229391713]
[2023-12-24 14:19:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:21,067 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
[2023-12-24 14:19:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:21,068 INFO L229 MonitoredProcess]: Starting monitored process 41 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)
[2023-12-24 14:19:21,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process
[2023-12-24 14:19:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:21,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 27 conjunts are in the unsatisfiable core
[2023-12-24 14:19:21,446 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:21,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:19:22,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:23,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:23,988 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 245 treesize of output 101
[2023-12-24 14:19:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:24,045 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:24,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:24,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229391713]
[2023-12-24 14:19:24,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229391713] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:24,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:24,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 17
[2023-12-24 14:19:24,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634735903]
[2023-12-24 14:19:24,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:24,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-24 14:19:24,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:24,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-24 14:19:24,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272
[2023-12-24 14:19:24,255 INFO L87 Difference]: Start difference. First operand 1024 states and 1179 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:24,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:24,680 INFO L93 Difference]: Finished difference Result 2055 states and 2347 transitions.
[2023-12-24 14:19:24,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-24 14:19:24,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:24,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:24,684 INFO L225 Difference]: With dead ends: 2055
[2023-12-24 14:19:24,684 INFO L226 Difference]: Without dead ends: 1126
[2023-12-24 14:19:24,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 239 SyntacticMatches, 24 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380
[2023-12-24 14:19:24,685 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 127 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:24,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 701 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states.
[2023-12-24 14:19:24,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1012.
[2023-12-24 14:19:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 788 states have (on average 1.0901015228426396) internal successors, (859), 796 states have internal predecessors, (859), 152 states have call successors, (152), 71 states have call predecessors, (152), 71 states have return successors, (152), 144 states have call predecessors, (152), 152 states have call successors, (152)
[2023-12-24 14:19:24,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1163 transitions.
[2023-12-24 14:19:24,812 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1163 transitions. Word has length 140
[2023-12-24 14:19:24,812 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:24,813 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1163 transitions.
[2023-12-24 14:19:24,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:24,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1163 transitions.
[2023-12-24 14:19:24,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:24,814 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:24,814 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:24,820 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 (41)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:25,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:25,021 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:25,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1958056800, now seen corresponding path program 1 times
[2023-12-24 14:19:25,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704022268]
[2023-12-24 14:19:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:25,021 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
[2023-12-24 14:19:25,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:25,022 INFO L229 MonitoredProcess]: Starting monitored process 42 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)
[2023-12-24 14:19:25,023 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 (42)] Waiting until timeout for monitored process
[2023-12-24 14:19:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:25,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-24 14:19:25,247 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:25,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8
[2023-12-24 14:19:25,288 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 17 treesize of output 9
[2023-12-24 14:19:25,321 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:25,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:25,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:25,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704022268]
[2023-12-24 14:19:25,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [704022268] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:25,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:25,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-12-24 14:19:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807463292]
[2023-12-24 14:19:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:25,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-24 14:19:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-24 14:19:25,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2023-12-24 14:19:25,322 INFO L87 Difference]: Start difference. First operand 1012 states and 1163 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:25,721 INFO L93 Difference]: Finished difference Result 2321 states and 2655 transitions.
[2023-12-24 14:19:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-24 14:19:25,722 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:25,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:25,725 INFO L225 Difference]: With dead ends: 2321
[2023-12-24 14:19:25,725 INFO L226 Difference]: Without dead ends: 1404
[2023-12-24 14:19:25,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240
[2023-12-24 14:19:25,727 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 158 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:25,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1081 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states.
[2023-12-24 14:19:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 887.
[2023-12-24 14:19:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 703 states have (on average 1.096728307254623) internal successors, (771), 709 states have internal predecessors, (771), 126 states have call successors, (126), 57 states have call predecessors, (126), 57 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126)
[2023-12-24 14:19:25,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1023 transitions.
[2023-12-24 14:19:25,842 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1023 transitions. Word has length 140
[2023-12-24 14:19:25,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:25,842 INFO L495 AbstractCegarLoop]: Abstraction has 887 states and 1023 transitions.
[2023-12-24 14:19:25,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:25,842 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1023 transitions.
[2023-12-24 14:19:25,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-12-24 14:19:25,843 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:25,843 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:25,849 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 (42)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:26,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:26,049 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:26,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2078745058, now seen corresponding path program 1 times
[2023-12-24 14:19:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308346017]
[2023-12-24 14:19:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:26,050 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
[2023-12-24 14:19:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:26,051 INFO L229 MonitoredProcess]: Starting monitored process 43 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)
[2023-12-24 14:19:26,052 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 (43)] Waiting until timeout for monitored process
[2023-12-24 14:19:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:26,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-24 14:19:26,305 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:27,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 59
[2023-12-24 14:19:28,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:28,407 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 233 treesize of output 101
[2023-12-24 14:19:28,470 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 220 proven. 36 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked.
[2023-12-24 14:19:28,470 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:28,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:28,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308346017]
[2023-12-24 14:19:28,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308346017] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:28,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:28,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15
[2023-12-24 14:19:28,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582151438]
[2023-12-24 14:19:28,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:28,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:28,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:28,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:28,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210
[2023-12-24 14:19:28,581 INFO L87 Difference]: Start difference. First operand 887 states and 1023 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:28,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:28,878 INFO L93 Difference]: Finished difference Result 2111 states and 2417 transitions.
[2023-12-24 14:19:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:19:28,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140
[2023-12-24 14:19:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:28,882 INFO L225 Difference]: With dead ends: 2111
[2023-12-24 14:19:28,883 INFO L226 Difference]: Without dead ends: 1335
[2023-12-24 14:19:28,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 248 SyntacticMatches, 17 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240
[2023-12-24 14:19:28,884 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 109 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:28,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 520 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:19:28,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states.
[2023-12-24 14:19:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 865.
[2023-12-24 14:19:28,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 681 states have (on average 1.0866372980910426) internal successors, (740), 687 states have internal predecessors, (740), 126 states have call successors, (126), 57 states have call predecessors, (126), 57 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126)
[2023-12-24 14:19:28,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 992 transitions.
[2023-12-24 14:19:28,999 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 992 transitions. Word has length 140
[2023-12-24 14:19:28,999 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:28,999 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 992 transitions.
[2023-12-24 14:19:29,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:29,000 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 992 transitions.
[2023-12-24 14:19:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2023-12-24 14:19:29,000 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:29,000 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:29,013 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 (43)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:29,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:29,208 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:29,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash 686504824, now seen corresponding path program 1 times
[2023-12-24 14:19:29,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:29,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61039566]
[2023-12-24 14:19:29,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:29,209 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
[2023-12-24 14:19:29,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:29,210 INFO L229 MonitoredProcess]: Starting monitored process 44 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)
[2023-12-24 14:19:29,232 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 (44)] Waiting until timeout for monitored process
[2023-12-24 14:19:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:29,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-12-24 14:19:29,533 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:29,654 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-12-24 14:19:29,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:29,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 66 treesize of output 74
[2023-12-24 14:19:29,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-24 14:19:29,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 38
[2023-12-24 14:19:29,908 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 38 treesize of output 20
[2023-12-24 14:19:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 282 proven. 27 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked.
[2023-12-24 14:19:30,746 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-24 14:19:31,084 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:31,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:31,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61039566]
[2023-12-24 14:19:31,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61039566] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-24 14:19:31,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-24 14:19:31,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13
[2023-12-24 14:19:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101802576]
[2023-12-24 14:19:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:31,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:31,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:31,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:31,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2023-12-24 14:19:31,086 INFO L87 Difference]: Start difference. First operand 865 states and 992 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:31,454 INFO L93 Difference]: Finished difference Result 2013 states and 2265 transitions.
[2023-12-24 14:19:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-24 14:19:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142
[2023-12-24 14:19:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:31,458 INFO L225 Difference]: With dead ends: 2013
[2023-12-24 14:19:31,459 INFO L226 Difference]: Without dead ends: 1259
[2023-12-24 14:19:31,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182
[2023-12-24 14:19:31,460 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 109 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:31,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 379 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-24 14:19:31,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states.
[2023-12-24 14:19:31,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1105.
[2023-12-24 14:19:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 884 states have (on average 1.0735294117647058) internal successors, (949), 894 states have internal predecessors, (949), 146 states have call successors, (146), 74 states have call predecessors, (146), 74 states have return successors, (146), 136 states have call predecessors, (146), 146 states have call successors, (146)
[2023-12-24 14:19:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1241 transitions.
[2023-12-24 14:19:31,601 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1241 transitions. Word has length 142
[2023-12-24 14:19:31,601 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:31,601 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1241 transitions.
[2023-12-24 14:19:31,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1241 transitions.
[2023-12-24 14:19:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2023-12-24 14:19:31,602 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-24 14:19:31,602 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-24 14:19:31,609 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 (44)] Forceful destruction successful, exit code 0
[2023-12-24 14:19:31,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:31,803 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-24 14:19:31,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-24 14:19:31,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1751828433, now seen corresponding path program 1 times
[2023-12-24 14:19:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-24 14:19:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478148070]
[2023-12-24 14:19:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-24 14:19:31,804 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
[2023-12-24 14:19:31,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-24 14:19:31,805 INFO L229 MonitoredProcess]: Starting monitored process 45 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)
[2023-12-24 14:19:31,809 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 (45)] Waiting until timeout for monitored process
[2023-12-24 14:19:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-24 14:19:32,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-24 14:19:32,033 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-24 14:19:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked.
[2023-12-24 14:19:32,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-24 14:19:32,048 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-24 14:19:32,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478148070]
[2023-12-24 14:19:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478148070] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-24 14:19:32,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-24 14:19:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-24 14:19:32,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897234842]
[2023-12-24 14:19:32,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-24 14:19:32,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-24 14:19:32,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-24 14:19:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-24 14:19:32,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-24 14:19:32,049 INFO L87 Difference]: Start difference. First operand 1105 states and 1241 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:32,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-24 14:19:32,249 INFO L93 Difference]: Finished difference Result 1967 states and 2197 transitions.
[2023-12-24 14:19:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-24 14:19:32,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143
[2023-12-24 14:19:32,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-24 14:19:32,250 INFO L225 Difference]: With dead ends: 1967
[2023-12-24 14:19:32,250 INFO L226 Difference]: Without dead ends: 0
[2023-12-24 14:19:32,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-24 14:19:32,252 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-24 14:19:32,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-24 14:19:32,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2023-12-24 14:19:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2023-12-24 14:19:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-12-24 14:19:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2023-12-24 14:19:32,253 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143
[2023-12-24 14:19:32,253 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-24 14:19:32,253 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-12-24 14:19:32,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17)
[2023-12-24 14:19:32,253 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2023-12-24 14:19:32,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2023-12-24 14:19:32,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-24 14:19:32,261 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 (45)] Ended with exit code 0
[2023-12-24 14:19:32,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-24 14:19:32,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-12-24 14:21:07,179 WARN L293 SmtUtils]: Spent 1.57m on a formula simplification. DAG size of input: 393 DAG size of output: 599 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)
[2023-12-24 14:31:31,038 WARN L293 SmtUtils]: Spent 10.37m on a formula simplification. DAG size of input: 333 DAG size of output: 664 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)
Received shutdown request...
[2023-12-24 14:32:47,387 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-23-16-8-8-8-10-8-10-8-10-8-10-7-10-6-10-5-10-4-10-3-10-3-10-3-8-3-3-3-3-3-3-2-3-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-51-16-8-13-8-13-8-10-8-9-7-9-6-9-5-9-4-9-4-8-3-8-3-8-3-3-3-3-3-3-2-3-2-3-1 context.
[2023-12-24 14:32:47,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2023-12-24 14:32:47,392 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user
[2023-12-24 14:32:47,393 INFO L158 Benchmark]: Toolchain (without parser) took 873770.16ms. Allocated memory was 249.6MB in the beginning and 901.8MB in the end (delta: 652.2MB). Free memory was 204.3MB in the beginning and 331.6MB in the end (delta: -127.3MB). Peak memory consumption was 525.8MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,393 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 181.4MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-24 14:32:47,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.51ms. Allocated memory is still 249.6MB. Free memory was 203.7MB in the beginning and 188.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.58ms. Allocated memory is still 249.6MB. Free memory was 188.5MB in the beginning and 185.3MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,394 INFO L158 Benchmark]: Boogie Preprocessor took 75.36ms. Allocated memory is still 249.6MB. Free memory was 184.9MB in the beginning and 180.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,394 INFO L158 Benchmark]: RCFGBuilder took 612.61ms. Allocated memory is still 249.6MB. Free memory was 180.0MB in the beginning and 142.9MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,394 INFO L158 Benchmark]: TraceAbstraction took 872749.61ms. Allocated memory was 249.6MB in the beginning and 901.8MB in the end (delta: 652.2MB). Free memory was 142.3MB in the beginning and 331.6MB in the end (delta: -189.3MB). Peak memory consumption was 464.0MB. Max. memory is 8.0GB.
[2023-12-24 14:32:47,394 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.46ms. Allocated memory is still 181.4MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 285.51ms. Allocated memory is still 249.6MB. Free memory was 203.7MB in the beginning and 188.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 41.58ms. Allocated memory is still 249.6MB. Free memory was 188.5MB in the beginning and 185.3MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 75.36ms. Allocated memory is still 249.6MB. Free memory was 184.9MB in the beginning and 180.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
* RCFGBuilder took 612.61ms. Allocated memory is still 249.6MB. Free memory was 180.0MB in the beginning and 142.9MB in the end (delta: 37.1MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 872749.61ms. Allocated memory was 249.6MB in the beginning and 901.8MB in the end (delta: 652.2MB). Free memory was 142.3MB in the beginning and 331.6MB in the end (delta: -189.3MB). Peak memory consumption was 464.0MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction)
Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-14-20-4-18-4-18-3-12-3-12-3-4-3-4-3-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-31-20-4-18-4-18-3-12-3-12-3-4-3-4-3-4-2-4-2-3-1 context.
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown