/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-84.i
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-16 15:33:19,605 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-16 15:33:19,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2023-12-16 15:33:19,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-16 15:33:19,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-16 15:33:19,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-16 15:33:19,702 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-16 15:33:19,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-16 15:33:19,703 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-16 15:33:19,706 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-16 15:33:19,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-16 15:33:19,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-16 15:33:19,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-16 15:33:19,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-16 15:33:19,708 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-16 15:33:19,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-16 15:33:19,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-16 15:33:19,709 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-16 15:33:19,709 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-16 15:33:19,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-16 15:33:19,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-16 15:33:19,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-16 15:33:19,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-16 15:33:19,710 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-16 15:33:19,711 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-16 15:33:19,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-16 15:33:19,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-16 15:33:19,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-16 15:33:19,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-16 15:33:19,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 15:33:19,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-16 15:33:19,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-16 15:33:19,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-16 15:33:19,714 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-12-16 15:33:19,714 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2023-12-16 15:33:19,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-16 15:33:19,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-16 15:33:19,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-16 15:33:19,891 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-16 15:33:19,891 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-16 15:33:19,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i
[2023-12-16 15:33:20,928 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-16 15:33:21,105 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-16 15:33:21,105 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-84.i
[2023-12-16 15:33:21,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd953a8d/a76c596ac743490fb1131de312bd0432/FLAG116fc65c3
[2023-12-16 15:33:21,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd953a8d/a76c596ac743490fb1131de312bd0432
[2023-12-16 15:33:21,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-16 15:33:21,129 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-16 15:33:21,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-16 15:33:21,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-16 15:33:21,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-16 15:33:21,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e11c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21, skipping insertion in model container
[2023-12-16 15:33:21,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,161 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-16 15:33:21,281 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-84.i[916,929]
[2023-12-16 15:33:21,343 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 15:33:21,366 INFO L202 MainTranslator]: Completed pre-run
[2023-12-16 15:33:21,376 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-84.i[916,929]
[2023-12-16 15:33:21,434 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-16 15:33:21,447 INFO L206 MainTranslator]: Completed translation
[2023-12-16 15:33:21,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21 WrapperNode
[2023-12-16 15:33:21,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-16 15:33:21,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-16 15:33:21,457 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-16 15:33:21,457 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-16 15:33:21,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,513 INFO L138 Inliner]: procedures = 33, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429
[2023-12-16 15:33:21,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-16 15:33:21,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-16 15:33:21,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-16 15:33:21,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-16 15:33:21,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,554 INFO L175 MemorySlicer]: Split 122 memory accesses to 6 slices as follows [2, 6, 11, 19, 72, 12]. 59 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 2, 3, 7, 2]. The 17 writes are split as follows [0, 1, 2, 4, 8, 2].
[2023-12-16 15:33:21,555 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,555 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-16 15:33:21,613 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-16 15:33:21,613 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-16 15:33:21,613 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-16 15:33:21,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (1/1) ...
[2023-12-16 15:33:21,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-16 15:33:21,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-16 15:33:21,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:21,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-12-16 15:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-16 15:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2023-12-16 15:33:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1
[2023-12-16 15:33:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3
[2023-12-16 15:33:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3
[2023-12-16 15:33:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4
[2023-12-16 15:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5
[2023-12-16 15:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0
[2023-12-16 15:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1
[2023-12-16 15:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2
[2023-12-16 15:33:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3
[2023-12-16 15:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4
[2023-12-16 15:33:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2
[2023-12-16 15:33:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2023-12-16 15:33:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-16 15:33:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0
[2023-12-16 15:33:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4
[2023-12-16 15:33:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5
[2023-12-16 15:33:21,835 INFO L241 CfgBuilder]: Building ICFG
[2023-12-16 15:33:21,836 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-16 15:33:22,311 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-16 15:33:22,333 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-16 15:33:22,333 INFO L309 CfgBuilder]: Removed 1 assume(true) statements.
[2023-12-16 15:33:22,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:33:22 BoogieIcfgContainer
[2023-12-16 15:33:22,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-16 15:33:22,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-16 15:33:22,335 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-16 15:33:22,337 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-16 15:33:22,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:33:21" (1/3) ...
[2023-12-16 15:33:22,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d67e711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:33:22, skipping insertion in model container
[2023-12-16 15:33:22,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:33:21" (2/3) ...
[2023-12-16 15:33:22,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d67e711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:33:22, skipping insertion in model container
[2023-12-16 15:33:22,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:33:22" (3/3) ...
[2023-12-16 15:33:22,339 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-84.i
[2023-12-16 15:33:22,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-16 15:33:22,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-16 15:33:22,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-16 15:33:22,395 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;@38344bc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-16 15:33:22,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-16 15:33:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-16 15:33:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2023-12-16 15:33:22,411 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:22,412 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:22,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:22,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:22,416 INFO L85 PathProgramCache]: Analyzing trace with hash 2134703419, now seen corresponding path program 1 times
[2023-12-16 15:33:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785931186]
[2023-12-16 15:33:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:22,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:22,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:22,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:22,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-12-16 15:33:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:22,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-16 15:33:22,707 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2023-12-16 15:33:22,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:22,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:22,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785931186]
[2023-12-16 15:33:22,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785931186] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:22,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:22,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-16 15:33:22,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293448222]
[2023-12-16 15:33:22,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:22,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-16 15:33:22,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:22,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-16 15:33:22,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-16 15:33:22,779 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 74 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:22,825 INFO L93 Difference]: Finished difference Result 189 states and 300 transitions.
[2023-12-16 15:33:22,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-12-16 15:33:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145
[2023-12-16 15:33:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:22,844 INFO L225 Difference]: With dead ends: 189
[2023-12-16 15:33:22,844 INFO L226 Difference]: Without dead ends: 94
[2023-12-16 15:33:22,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-16 15:33:22,849 INFO L413 NwaCegarLoop]: 132 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, 132 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
[2023-12-16 15:33:22,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 15:33:22,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states.
[2023-12-16 15:33:22,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94.
[2023-12-16 15:33:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.3333333333333333) internal successors, (96), 72 states have internal predecessors, (96), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-16 15:33:22,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions.
[2023-12-16 15:33:22,901 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 145
[2023-12-16 15:33:22,901 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:22,901 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions.
[2023-12-16 15:33:22,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:22,901 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions.
[2023-12-16 15:33:22,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2023-12-16 15:33:22,910 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:22,910 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:22,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2023-12-16 15:33:23,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:23,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:23,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:23,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1901966747, now seen corresponding path program 1 times
[2023-12-16 15:33:23,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:23,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107376860]
[2023-12-16 15:33:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:23,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:23,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:23,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:23,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-12-16 15:33:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:23,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-12-16 15:33:23,363 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked.
[2023-12-16 15:33:23,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:23,395 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:23,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2107376860]
[2023-12-16 15:33:23,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2107376860] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:23,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:23,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 15:33:23,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249526470]
[2023-12-16 15:33:23,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:23,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-16 15:33:23,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-16 15:33:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-16 15:33:23,398 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:23,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:23,444 INFO L93 Difference]: Finished difference Result 193 states and 280 transitions.
[2023-12-16 15:33:23,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-16 15:33:23,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145
[2023-12-16 15:33:23,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:23,446 INFO L225 Difference]: With dead ends: 193
[2023-12-16 15:33:23,446 INFO L226 Difference]: Without dead ends: 100
[2023-12-16 15:33:23,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:23,448 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 10 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:23,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 388 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 15:33:23,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states.
[2023-12-16 15:33:23,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96.
[2023-12-16 15:33:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20)
[2023-12-16 15:33:23,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions.
[2023-12-16 15:33:23,455 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 145
[2023-12-16 15:33:23,455 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:23,455 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions.
[2023-12-16 15:33:23,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions.
[2023-12-16 15:33:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2023-12-16 15:33:23,457 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:23,457 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:23,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:23,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:23,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:23,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1848127975, now seen corresponding path program 1 times
[2023-12-16 15:33:23,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:23,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465976639]
[2023-12-16 15:33:23,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:23,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:23,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:23,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:23,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-12-16 15:33:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:23,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-16 15:33:23,890 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:23,940 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
[2023-12-16 15:33:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:24,088 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:24,088 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465976639]
[2023-12-16 15:33:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465976639] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-16 15:33:24,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874776839]
[2023-12-16 15:33:24,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:24,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:24,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:24,090 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:24,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:24,305 INFO L93 Difference]: Finished difference Result 316 states and 454 transitions.
[2023-12-16 15:33:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:24,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 145
[2023-12-16 15:33:24,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:24,307 INFO L225 Difference]: With dead ends: 316
[2023-12-16 15:33:24,307 INFO L226 Difference]: Without dead ends: 221
[2023-12-16 15:33:24,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-16 15:33:24,309 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 217 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:24,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 493 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 15:33:24,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2023-12-16 15:33:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191.
[2023-12-16 15:33:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.3108108108108107) internal successors, (194), 148 states have internal predecessors, (194), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-16 15:33:24,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 274 transitions.
[2023-12-16 15:33:24,322 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 274 transitions. Word has length 145
[2023-12-16 15:33:24,323 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:24,323 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 274 transitions.
[2023-12-16 15:33:24,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 274 transitions.
[2023-12-16 15:33:24,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2023-12-16 15:33:24,324 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:24,324 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:24,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:24,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:24,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:24,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:24,549 INFO L85 PathProgramCache]: Analyzing trace with hash 152804667, now seen corresponding path program 1 times
[2023-12-16 15:33:24,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:24,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1394616641]
[2023-12-16 15:33:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:24,550 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:24,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:24,555 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:24,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-12-16 15:33:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:24,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-16 15:33:24,778 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:24,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:24,799 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:24,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1394616641]
[2023-12-16 15:33:24,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1394616641] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:24,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:24,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-16 15:33:24,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829497792]
[2023-12-16 15:33:24,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:24,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 15:33:24,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:24,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 15:33:24,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-16 15:33:24,805 INFO L87 Difference]: Start difference. First operand 191 states and 274 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:24,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:24,900 INFO L93 Difference]: Finished difference Result 413 states and 591 transitions.
[2023-12-16 15:33:24,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-16 15:33:24,901 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153
[2023-12-16 15:33:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:24,903 INFO L225 Difference]: With dead ends: 413
[2023-12-16 15:33:24,903 INFO L226 Difference]: Without dead ends: 223
[2023-12-16 15:33:24,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2023-12-16 15:33:24,904 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 23 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:24,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 620 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 15:33:24,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states.
[2023-12-16 15:33:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 203.
[2023-12-16 15:33:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 160 states have (on average 1.2875) internal successors, (206), 160 states have internal predecessors, (206), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40)
[2023-12-16 15:33:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 286 transitions.
[2023-12-16 15:33:24,935 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 286 transitions. Word has length 153
[2023-12-16 15:33:24,936 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 286 transitions.
[2023-12-16 15:33:24,936 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:24,936 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions.
[2023-12-16 15:33:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2023-12-16 15:33:24,937 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:24,937 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:24,958 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
[2023-12-16 15:33:25,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:25,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:25,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash 152864249, now seen corresponding path program 1 times
[2023-12-16 15:33:25,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:25,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355959827]
[2023-12-16 15:33:25,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:25,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:25,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:25,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:25,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-12-16 15:33:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:25,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-16 15:33:25,463 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:25,473 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
[2023-12-16 15:33:25,478 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
[2023-12-16 15:33:25,482 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
[2023-12-16 15:33:25,485 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
[2023-12-16 15:33:25,541 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 25 treesize of output 24
[2023-12-16 15:33:25,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:25,844 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 54 treesize of output 53
[2023-12-16 15:33:26,081 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:26,081 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 81 treesize of output 33
[2023-12-16 15:33:26,153 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-16 15:33:26,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:26,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355959827]
[2023-12-16 15:33:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355959827] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:26,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:26,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2023-12-16 15:33:26,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432294108]
[2023-12-16 15:33:26,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:26,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-16 15:33:26,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:26,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-16 15:33:26,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110
[2023-12-16 15:33:26,155 INFO L87 Difference]: Start difference. First operand 203 states and 286 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:33:27,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:27,845 INFO L93 Difference]: Finished difference Result 610 states and 850 transitions.
[2023-12-16 15:33:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2023-12-16 15:33:27,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 153
[2023-12-16 15:33:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:27,847 INFO L225 Difference]: With dead ends: 610
[2023-12-16 15:33:27,847 INFO L226 Difference]: Without dead ends: 408
[2023-12-16 15:33:27,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272
[2023-12-16 15:33:27,848 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 293 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:27,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 783 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time]
[2023-12-16 15:33:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states.
[2023-12-16 15:33:27,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 343.
[2023-12-16 15:33:27,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 286 states have internal predecessors, (369), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-16 15:33:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 477 transitions.
[2023-12-16 15:33:27,889 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 477 transitions. Word has length 153
[2023-12-16 15:33:27,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:27,889 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 477 transitions.
[2023-12-16 15:33:27,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:33:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 477 transitions.
[2023-12-16 15:33:27,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:27,891 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:27,891 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:27,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:28,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:28,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:28,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:28,099 INFO L85 PathProgramCache]: Analyzing trace with hash 535407572, now seen corresponding path program 1 times
[2023-12-16 15:33:28,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:28,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215512724]
[2023-12-16 15:33:28,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:28,100 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:28,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:28,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:28,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-12-16 15:33:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:28,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-16 15:33:28,436 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:28,441 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
[2023-12-16 15:33:28,477 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 15
[2023-12-16 15:33:28,529 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 26 treesize of output 25
[2023-12-16 15:33:28,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:28,690 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 36 treesize of output 38
[2023-12-16 15:33:29,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:29,021 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 62 treesize of output 46
[2023-12-16 15:33:29,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:29,542 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 70 treesize of output 48
[2023-12-16 15:33:29,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:29,800 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 72 treesize of output 30
[2023-12-16 15:33:29,844 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 557 proven. 42 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2023-12-16 15:33:29,845 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:30,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215512724]
[2023-12-16 15:33:30,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215512724] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:30,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:30,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22
[2023-12-16 15:33:30,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078042889]
[2023-12-16 15:33:30,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:30,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 15:33:30,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:30,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 15:33:30,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462
[2023-12-16 15:33:30,112 INFO L87 Difference]: Start difference. First operand 343 states and 477 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:30,784 INFO L93 Difference]: Finished difference Result 1027 states and 1416 transitions.
[2023-12-16 15:33:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2023-12-16 15:33:30,784 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:30,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:30,790 INFO L225 Difference]: With dead ends: 1027
[2023-12-16 15:33:30,790 INFO L226 Difference]: Without dead ends: 685
[2023-12-16 15:33:30,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650
[2023-12-16 15:33:30,791 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 209 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:30,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 656 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-16 15:33:30,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states.
[2023-12-16 15:33:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 383.
[2023-12-16 15:33:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 324 states have (on average 1.3148148148148149) internal successors, (426), 326 states have internal predecessors, (426), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54)
[2023-12-16 15:33:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 534 transitions.
[2023-12-16 15:33:30,821 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 534 transitions. Word has length 155
[2023-12-16 15:33:30,821 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:30,821 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 534 transitions.
[2023-12-16 15:33:30,821 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:30,821 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 534 transitions.
[2023-12-16 15:33:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:30,823 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:30,823 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:30,831 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
[2023-12-16 15:33:31,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:31,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:31,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:31,030 INFO L85 PathProgramCache]: Analyzing trace with hash -744456106, now seen corresponding path program 1 times
[2023-12-16 15:33:31,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:31,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171908512]
[2023-12-16 15:33:31,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:31,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:31,032 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:31,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-12-16 15:33:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:31,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 42 conjunts are in the unsatisfiable core
[2023-12-16 15:33:31,355 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:31,359 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
[2023-12-16 15:33:31,451 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 41 treesize of output 19
[2023-12-16 15:33:31,547 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 36 treesize of output 29
[2023-12-16 15:33:31,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:31,788 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 57 treesize of output 47
[2023-12-16 15:33:32,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:32,216 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 78 treesize of output 65
[2023-12-16 15:33:33,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:33,415 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 98 treesize of output 67
[2023-12-16 15:33:33,884 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 583 proven. 54 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked.
[2023-12-16 15:33:33,884 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:34,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:34,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171908512]
[2023-12-16 15:33:34,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171908512] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:34,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:34,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [23] total 30
[2023-12-16 15:33:34,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696460365]
[2023-12-16 15:33:34,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:34,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-16 15:33:34,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:34,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-16 15:33:34,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870
[2023-12-16 15:33:34,406 INFO L87 Difference]: Start difference. First operand 383 states and 534 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:35,547 INFO L93 Difference]: Finished difference Result 1386 states and 1905 transitions.
[2023-12-16 15:33:35,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2023-12-16 15:33:35,552 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:35,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:35,555 INFO L225 Difference]: With dead ends: 1386
[2023-12-16 15:33:35,556 INFO L226 Difference]: Without dead ends: 1004
[2023-12-16 15:33:35,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 280 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=243, Invalid=1089, Unknown=0, NotChecked=0, Total=1332
[2023-12-16 15:33:35,557 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 264 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:35,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1009 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-12-16 15:33:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states.
[2023-12-16 15:33:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 342.
[2023-12-16 15:33:35,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 290 states have (on average 1.3241379310344827) internal successors, (384), 291 states have internal predecessors, (384), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47)
[2023-12-16 15:33:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 478 transitions.
[2023-12-16 15:33:35,585 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 478 transitions. Word has length 155
[2023-12-16 15:33:35,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:35,587 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 478 transitions.
[2023-12-16 15:33:35,587 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:35,587 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 478 transitions.
[2023-12-16 15:33:35,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:35,589 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:35,589 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:35,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0
[2023-12-16 15:33:35,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:35,797 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:35,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1298567520, now seen corresponding path program 1 times
[2023-12-16 15:33:35,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:35,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689374168]
[2023-12-16 15:33:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:35,798 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:35,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:35,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:35,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-12-16 15:33:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:36,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 15:33:36,016 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:36,270 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
[2023-12-16 15:33:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked.
[2023-12-16 15:33:36,288 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:36,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:36,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689374168]
[2023-12-16 15:33:36,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689374168] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:36,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:36,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-12-16 15:33:36,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557337302]
[2023-12-16 15:33:36,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:36,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:36,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:36,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:36,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2023-12-16 15:33:36,396 INFO L87 Difference]: Start difference. First operand 342 states and 478 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:36,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:36,453 INFO L93 Difference]: Finished difference Result 923 states and 1279 transitions.
[2023-12-16 15:33:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:36,454 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:36,456 INFO L225 Difference]: With dead ends: 923
[2023-12-16 15:33:36,456 INFO L226 Difference]: Without dead ends: 582
[2023-12-16 15:33:36,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156
[2023-12-16 15:33:36,458 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 127 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:36,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 399 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 15:33:36,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states.
[2023-12-16 15:33:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 442.
[2023-12-16 15:33:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 390 states have (on average 1.3512820512820514) internal successors, (527), 391 states have internal predecessors, (527), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47)
[2023-12-16 15:33:36,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 621 transitions.
[2023-12-16 15:33:36,490 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 621 transitions. Word has length 155
[2023-12-16 15:33:36,490 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:36,490 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 621 transitions.
[2023-12-16 15:33:36,491 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 621 transitions.
[2023-12-16 15:33:36,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:36,492 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:36,492 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:36,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:36,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:36,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:36,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1999632098, now seen corresponding path program 1 times
[2023-12-16 15:33:36,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:36,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978571548]
[2023-12-16 15:33:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:36,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:36,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:36,701 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:36,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-12-16 15:33:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:37,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 20 conjunts are in the unsatisfiable core
[2023-12-16 15:33:37,069 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:37,073 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
[2023-12-16 15:33:37,075 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
[2023-12-16 15:33:37,077 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
[2023-12-16 15:33:37,109 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
[2023-12-16 15:33:37,148 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 14
[2023-12-16 15:33:37,155 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 35
[2023-12-16 15:33:37,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:37,267 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 108 treesize of output 78
[2023-12-16 15:33:37,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:37,270 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 103 treesize of output 73
[2023-12-16 15:33:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked.
[2023-12-16 15:33:37,295 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:37,295 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:37,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978571548]
[2023-12-16 15:33:37,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1978571548] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:37,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:37,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-12-16 15:33:37,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72110819]
[2023-12-16 15:33:37,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:37,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 15:33:37,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 15:33:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-12-16 15:33:37,296 INFO L87 Difference]: Start difference. First operand 442 states and 621 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:38,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:38,154 INFO L93 Difference]: Finished difference Result 1109 states and 1541 transitions.
[2023-12-16 15:33:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-12-16 15:33:38,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155
[2023-12-16 15:33:38,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:38,158 INFO L225 Difference]: With dead ends: 1109
[2023-12-16 15:33:38,158 INFO L226 Difference]: Without dead ends: 668
[2023-12-16 15:33:38,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2023-12-16 15:33:38,159 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 328 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:38,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 542 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-12-16 15:33:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states.
[2023-12-16 15:33:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 616.
[2023-12-16 15:33:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 529 states have (on average 1.3100189035916825) internal successors, (693), 533 states have internal predecessors, (693), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-16 15:33:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 849 transitions.
[2023-12-16 15:33:38,188 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 849 transitions. Word has length 155
[2023-12-16 15:33:38,189 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:38,189 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 849 transitions.
[2023-12-16 15:33:38,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:33:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 849 transitions.
[2023-12-16 15:33:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:38,190 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:38,190 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:38,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:38,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:38,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:38,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 309196788, now seen corresponding path program 1 times
[2023-12-16 15:33:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:38,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670293707]
[2023-12-16 15:33:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:38,398 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:38,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:38,399 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:38,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-12-16 15:33:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:38,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-16 15:33:38,808 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:38,812 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
[2023-12-16 15:33:38,849 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 15
[2023-12-16 15:33:38,884 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 26 treesize of output 25
[2023-12-16 15:33:38,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:38,975 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 36 treesize of output 38
[2023-12-16 15:33:39,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:39,226 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 57 treesize of output 56
[2023-12-16 15:33:39,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:39,846 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 81 treesize of output 62
[2023-12-16 15:33:40,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:40,045 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 83 treesize of output 35
[2023-12-16 15:33:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 557 proven. 42 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2023-12-16 15:33:40,094 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:40,385 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:40,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670293707]
[2023-12-16 15:33:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [670293707] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:40,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:40,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23
[2023-12-16 15:33:40,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839249757]
[2023-12-16 15:33:40,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:40,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 15:33:40,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:40,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 15:33:40,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506
[2023-12-16 15:33:40,387 INFO L87 Difference]: Start difference. First operand 616 states and 849 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:41,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:41,053 INFO L93 Difference]: Finished difference Result 1846 states and 2501 transitions.
[2023-12-16 15:33:41,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2023-12-16 15:33:41,054 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:41,059 INFO L225 Difference]: With dead ends: 1846
[2023-12-16 15:33:41,059 INFO L226 Difference]: Without dead ends: 1231
[2023-12-16 15:33:41,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702
[2023-12-16 15:33:41,061 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 429 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 557 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-16 15:33:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states.
[2023-12-16 15:33:41,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 666.
[2023-12-16 15:33:41,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 579 states have (on average 1.3177892918825562) internal successors, (763), 583 states have internal predecessors, (763), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-16 15:33:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 919 transitions.
[2023-12-16 15:33:41,103 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 919 transitions. Word has length 155
[2023-12-16 15:33:41,103 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:41,103 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 919 transitions.
[2023-12-16 15:33:41,103 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 919 transitions.
[2023-12-16 15:33:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:41,105 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:41,105 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:41,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:41,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:41,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:41,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:41,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1279151114, now seen corresponding path program 1 times
[2023-12-16 15:33:41,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:41,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85832410]
[2023-12-16 15:33:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:41,312 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:41,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:41,313 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:41,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-12-16 15:33:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:41,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 15:33:41,542 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:41,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:41,575 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 41 treesize of output 17
[2023-12-16 15:33:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:41,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:41,605 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:41,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85832410]
[2023-12-16 15:33:41,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85832410] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:41,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:41,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:33:41,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367294904]
[2023-12-16 15:33:41,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:41,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:41,606 INFO L87 Difference]: Start difference. First operand 666 states and 919 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:42,267 INFO L93 Difference]: Finished difference Result 2128 states and 2873 transitions.
[2023-12-16 15:33:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-16 15:33:42,268 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:42,272 INFO L225 Difference]: With dead ends: 2128
[2023-12-16 15:33:42,273 INFO L226 Difference]: Without dead ends: 1463
[2023-12-16 15:33:42,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-16 15:33:42,275 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 180 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:42,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 435 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-16 15:33:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states.
[2023-12-16 15:33:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 722.
[2023-12-16 15:33:42,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 635 states have (on average 1.3133858267716536) internal successors, (834), 639 states have internal predecessors, (834), 78 states have call successors, (78), 8 states have call predecessors, (78), 8 states have return successors, (78), 74 states have call predecessors, (78), 78 states have call successors, (78)
[2023-12-16 15:33:42,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 990 transitions.
[2023-12-16 15:33:42,311 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 990 transitions. Word has length 155
[2023-12-16 15:33:42,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:42,311 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 990 transitions.
[2023-12-16 15:33:42,311 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:42,311 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 990 transitions.
[2023-12-16 15:33:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:42,312 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:42,312 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:42,328 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 (12)] Ended with exit code 0
[2023-12-16 15:33:42,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:42,518 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:42,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:42,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2004698932, now seen corresponding path program 1 times
[2023-12-16 15:33:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:42,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074864457]
[2023-12-16 15:33:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:42,519 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:42,541 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:42,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-12-16 15:33:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:42,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-16 15:33:42,960 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:42,963 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
[2023-12-16 15:33:43,047 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 36 treesize of output 29
[2023-12-16 15:33:43,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:43,298 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 46 treesize of output 42
[2023-12-16 15:33:43,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:43,926 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 69 treesize of output 47
[2023-12-16 15:33:44,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:44,045 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 70 treesize of output 28
[2023-12-16 15:33:44,083 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 443 proven. 27 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked.
[2023-12-16 15:33:44,083 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:44,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:44,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074864457]
[2023-12-16 15:33:44,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074864457] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:44,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:44,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19
[2023-12-16 15:33:44,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373921130]
[2023-12-16 15:33:44,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:44,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:44,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:44,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:44,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:33:44,255 INFO L87 Difference]: Start difference. First operand 722 states and 990 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:44,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:44,661 INFO L93 Difference]: Finished difference Result 1915 states and 2586 transitions.
[2023-12-16 15:33:44,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:44,663 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:44,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:44,666 INFO L225 Difference]: With dead ends: 1915
[2023-12-16 15:33:44,666 INFO L226 Difference]: Without dead ends: 1194
[2023-12-16 15:33:44,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380
[2023-12-16 15:33:44,668 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 275 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:44,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 406 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-16 15:33:44,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states.
[2023-12-16 15:33:44,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 805.
[2023-12-16 15:33:44,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 704 states have (on average 1.2940340909090908) internal successors, (911), 709 states have internal predecessors, (911), 90 states have call successors, (90), 10 states have call predecessors, (90), 10 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90)
[2023-12-16 15:33:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1091 transitions.
[2023-12-16 15:33:44,727 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1091 transitions. Word has length 155
[2023-12-16 15:33:44,727 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:44,727 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1091 transitions.
[2023-12-16 15:33:44,727 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1091 transitions.
[2023-12-16 15:33:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:44,729 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:44,729 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:44,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:44,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:44,935 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:44,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:44,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2133645604, now seen corresponding path program 1 times
[2023-12-16 15:33:44,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:44,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558218309]
[2023-12-16 15:33:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:44,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:44,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:44,939 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:44,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-12-16 15:33:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:45,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 15:33:45,150 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 93 proven. 54 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked.
[2023-12-16 15:33:45,369 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:45,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:45,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558218309]
[2023-12-16 15:33:45,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558218309] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:45,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:45,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10
[2023-12-16 15:33:45,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240774010]
[2023-12-16 15:33:45,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:45,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:45,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:45,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2023-12-16 15:33:45,443 INFO L87 Difference]: Start difference. First operand 805 states and 1091 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:45,535 INFO L93 Difference]: Finished difference Result 1703 states and 2291 transitions.
[2023-12-16 15:33:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2023-12-16 15:33:45,536 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:45,538 INFO L225 Difference]: With dead ends: 1703
[2023-12-16 15:33:45,538 INFO L226 Difference]: Without dead ends: 899
[2023-12-16 15:33:45,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2023-12-16 15:33:45,541 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 57 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:45,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 586 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 15:33:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states.
[2023-12-16 15:33:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 784.
[2023-12-16 15:33:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 683 states have (on average 1.2825768667642752) internal successors, (876), 688 states have internal predecessors, (876), 90 states have call successors, (90), 10 states have call predecessors, (90), 10 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90)
[2023-12-16 15:33:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1056 transitions.
[2023-12-16 15:33:45,577 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1056 transitions. Word has length 155
[2023-12-16 15:33:45,578 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:45,578 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1056 transitions.
[2023-12-16 15:33:45,578 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:45,578 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1056 transitions.
[2023-12-16 15:33:45,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:45,579 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:45,579 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:45,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:45,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:45,785 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:45,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1921610966, now seen corresponding path program 1 times
[2023-12-16 15:33:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:45,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833939205]
[2023-12-16 15:33:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:45,787 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:45,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:45,787 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:45,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-12-16 15:33:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:46,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 15:33:46,012 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:46,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:46,045 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 41 treesize of output 17
[2023-12-16 15:33:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:46,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:46,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:46,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833939205]
[2023-12-16 15:33:46,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833939205] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:46,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:46,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:33:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874338077]
[2023-12-16 15:33:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:46,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:46,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:46,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:46,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:46,066 INFO L87 Difference]: Start difference. First operand 784 states and 1056 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:46,782 INFO L93 Difference]: Finished difference Result 1685 states and 2257 transitions.
[2023-12-16 15:33:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-16 15:33:46,783 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:46,788 INFO L225 Difference]: With dead ends: 1685
[2023-12-16 15:33:46,788 INFO L226 Difference]: Without dead ends: 902
[2023-12-16 15:33:46,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-12-16 15:33:46,789 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 109 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:46,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 431 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-16 15:33:46,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states.
[2023-12-16 15:33:46,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 598.
[2023-12-16 15:33:46,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 526 states have (on average 1.2984790874524714) internal successors, (683), 528 states have internal predecessors, (683), 64 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64)
[2023-12-16 15:33:46,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 811 transitions.
[2023-12-16 15:33:46,817 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 811 transitions. Word has length 155
[2023-12-16 15:33:46,817 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:46,817 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 811 transitions.
[2023-12-16 15:33:46,818 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:46,818 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 811 transitions.
[2023-12-16 15:33:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:46,819 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:46,820 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:46,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:47,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:47,026 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:47,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1983650580, now seen corresponding path program 1 times
[2023-12-16 15:33:47,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:47,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957692882]
[2023-12-16 15:33:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:47,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:47,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:47,029 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:47,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-12-16 15:33:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:47,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 24 conjunts are in the unsatisfiable core
[2023-12-16 15:33:47,358 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:47,362 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
[2023-12-16 15:33:47,446 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 41 treesize of output 19
[2023-12-16 15:33:47,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:47,608 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 43
[2023-12-16 15:33:48,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:48,158 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 71 treesize of output 49
[2023-12-16 15:33:48,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:48,250 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 72 treesize of output 30
[2023-12-16 15:33:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 443 proven. 27 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked.
[2023-12-16 15:33:48,305 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:48,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:48,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957692882]
[2023-12-16 15:33:48,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957692882] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:48,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:48,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18
[2023-12-16 15:33:48,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809869609]
[2023-12-16 15:33:48,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:48,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:48,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:48,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:48,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306
[2023-12-16 15:33:48,487 INFO L87 Difference]: Start difference. First operand 598 states and 811 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:48,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:48,951 INFO L93 Difference]: Finished difference Result 1388 states and 1860 transitions.
[2023-12-16 15:33:48,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:48,952 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:48,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:48,954 INFO L225 Difference]: With dead ends: 1388
[2023-12-16 15:33:48,954 INFO L226 Difference]: Without dead ends: 791
[2023-12-16 15:33:48,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:33:48,957 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 269 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:48,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 376 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 15:33:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states.
[2023-12-16 15:33:48,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 582.
[2023-12-16 15:33:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 510 states have (on average 1.276470588235294) internal successors, (651), 512 states have internal predecessors, (651), 64 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64)
[2023-12-16 15:33:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 779 transitions.
[2023-12-16 15:33:48,983 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 779 transitions. Word has length 155
[2023-12-16 15:33:48,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:48,984 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 779 transitions.
[2023-12-16 15:33:48,984 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:48,984 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 779 transitions.
[2023-12-16 15:33:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2023-12-16 15:33:48,985 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:48,985 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:49,001 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 (16)] Ended with exit code 0
[2023-12-16 15:33:49,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:49,191 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:49,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -904064970, now seen corresponding path program 1 times
[2023-12-16 15:33:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:49,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60043449]
[2023-12-16 15:33:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:49,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:49,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:49,193 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:49,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-12-16 15:33:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:49,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 29 conjunts are in the unsatisfiable core
[2023-12-16 15:33:49,528 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:49,545 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
[2023-12-16 15:33:49,576 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 26 treesize of output 25
[2023-12-16 15:33:49,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:49,681 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 36 treesize of output 38
[2023-12-16 15:33:49,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:49,930 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 62 treesize of output 46
[2023-12-16 15:33:50,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:50,060 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 57 treesize of output 56
[2023-12-16 15:33:50,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:50,792 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 81 treesize of output 62
[2023-12-16 15:33:51,086 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:51,086 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 83 treesize of output 35
[2023-12-16 15:33:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 551 proven. 48 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2023-12-16 15:33:51,144 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:33:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:51,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:51,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60043449]
[2023-12-16 15:33:51,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60043449] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:33:51,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:33:51,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23
[2023-12-16 15:33:51,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077000663]
[2023-12-16 15:33:51,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:51,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 15:33:51,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:51,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 15:33:51,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506
[2023-12-16 15:33:51,420 INFO L87 Difference]: Start difference. First operand 582 states and 779 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:52,080 INFO L93 Difference]: Finished difference Result 1383 states and 1836 transitions.
[2023-12-16 15:33:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-16 15:33:52,081 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155
[2023-12-16 15:33:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:52,084 INFO L225 Difference]: With dead ends: 1383
[2023-12-16 15:33:52,084 INFO L226 Difference]: Without dead ends: 802
[2023-12-16 15:33:52,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=526, Unknown=0, NotChecked=0, Total=650
[2023-12-16 15:33:52,086 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 229 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:52,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 698 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-16 15:33:52,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states.
[2023-12-16 15:33:52,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 574.
[2023-12-16 15:33:52,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 502 states have (on average 1.2729083665338645) internal successors, (639), 504 states have internal predecessors, (639), 64 states have call successors, (64), 7 states have call predecessors, (64), 7 states have return successors, (64), 62 states have call predecessors, (64), 64 states have call successors, (64)
[2023-12-16 15:33:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 767 transitions.
[2023-12-16 15:33:52,113 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 767 transitions. Word has length 155
[2023-12-16 15:33:52,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:52,113 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 767 transitions.
[2023-12-16 15:33:52,113 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 767 transitions.
[2023-12-16 15:33:52,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-16 15:33:52,114 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:52,114 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:52,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:52,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:52,321 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:52,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1433857265, now seen corresponding path program 1 times
[2023-12-16 15:33:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:52,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406508118]
[2023-12-16 15:33:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:52,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:52,323 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:52,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2023-12-16 15:33:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:52,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 21 conjunts are in the unsatisfiable core
[2023-12-16 15:33:52,735 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:52,739 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
[2023-12-16 15:33:52,772 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 25 treesize of output 24
[2023-12-16 15:33:52,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:52,992 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 44
[2023-12-16 15:33:53,198 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:53,198 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 34
[2023-12-16 15:33:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2023-12-16 15:33:53,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:53,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406508118]
[2023-12-16 15:33:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406508118] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:53,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:53,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2023-12-16 15:33:53,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253090080]
[2023-12-16 15:33:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2023-12-16 15:33:53,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:53,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2023-12-16 15:33:53,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156
[2023-12-16 15:33:53,293 INFO L87 Difference]: Start difference. First operand 574 states and 767 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:33:55,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:55,922 INFO L93 Difference]: Finished difference Result 1443 states and 1913 transitions.
[2023-12-16 15:33:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2023-12-16 15:33:55,922 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157
[2023-12-16 15:33:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:55,925 INFO L225 Difference]: With dead ends: 1443
[2023-12-16 15:33:55,925 INFO L226 Difference]: Without dead ends: 870
[2023-12-16 15:33:55,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420
[2023-12-16 15:33:55,926 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 389 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:55,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 1088 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-12-16 15:33:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states.
[2023-12-16 15:33:55,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 804.
[2023-12-16 15:33:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 698 states have (on average 1.2564469914040115) internal successors, (877), 702 states have internal predecessors, (877), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-16 15:33:55,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1061 transitions.
[2023-12-16 15:33:55,990 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1061 transitions. Word has length 157
[2023-12-16 15:33:55,990 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:55,990 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1061 transitions.
[2023-12-16 15:33:55,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:33:55,990 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1061 transitions.
[2023-12-16 15:33:55,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-16 15:33:55,991 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:55,991 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:55,998 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
[2023-12-16 15:33:56,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:56,197 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:56,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:56,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1849992781, now seen corresponding path program 1 times
[2023-12-16 15:33:56,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:56,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758247348]
[2023-12-16 15:33:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:56,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:56,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:56,199 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:56,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2023-12-16 15:33:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:56,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 15:33:56,441 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:56,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:56,471 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 40 treesize of output 16
[2023-12-16 15:33:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:56,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:56,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:56,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758247348]
[2023-12-16 15:33:56,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758247348] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:56,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:56,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:33:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240614458]
[2023-12-16 15:33:56,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:56,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:56,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:56,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:56,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:56,491 INFO L87 Difference]: Start difference. First operand 804 states and 1061 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:56,994 INFO L93 Difference]: Finished difference Result 2072 states and 2721 transitions.
[2023-12-16 15:33:56,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:56,995 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157
[2023-12-16 15:33:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:56,999 INFO L225 Difference]: With dead ends: 2072
[2023-12-16 15:33:56,999 INFO L226 Difference]: Without dead ends: 1269
[2023-12-16 15:33:57,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 15:33:57,000 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 178 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:57,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 518 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 15:33:57,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states.
[2023-12-16 15:33:57,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 786.
[2023-12-16 15:33:57,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 680 states have (on average 1.2455882352941177) internal successors, (847), 684 states have internal predecessors, (847), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-16 15:33:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1031 transitions.
[2023-12-16 15:33:57,044 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1031 transitions. Word has length 157
[2023-12-16 15:33:57,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:57,044 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1031 transitions.
[2023-12-16 15:33:57,044 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:57,044 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1031 transitions.
[2023-12-16 15:33:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-16 15:33:57,045 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:57,045 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:57,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:57,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:57,251 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:57,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:57,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1943330355, now seen corresponding path program 1 times
[2023-12-16 15:33:57,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:57,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [983604918]
[2023-12-16 15:33:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:57,253 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:57,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2023-12-16 15:33:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:57,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-16 15:33:57,490 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:57,543 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:57,543 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 40 treesize of output 16
[2023-12-16 15:33:57,561 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:57,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:57,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:57,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [983604918]
[2023-12-16 15:33:57,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [983604918] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:57,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:57,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:33:57,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732038689]
[2023-12-16 15:33:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:57,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:57,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:57,562 INFO L87 Difference]: Start difference. First operand 786 states and 1031 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:58,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:58,048 INFO L93 Difference]: Finished difference Result 1665 states and 2178 transitions.
[2023-12-16 15:33:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:58,049 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157
[2023-12-16 15:33:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:58,052 INFO L225 Difference]: With dead ends: 1665
[2023-12-16 15:33:58,052 INFO L226 Difference]: Without dead ends: 880
[2023-12-16 15:33:58,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 15:33:58,053 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 112 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 484 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 15:33:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states.
[2023-12-16 15:33:58,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 730.
[2023-12-16 15:33:58,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 624 states have (on average 1.2387820512820513) internal successors, (773), 628 states have internal predecessors, (773), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-16 15:33:58,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 957 transitions.
[2023-12-16 15:33:58,095 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 957 transitions. Word has length 157
[2023-12-16 15:33:58,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:58,096 INFO L495 AbstractCegarLoop]: Abstraction has 730 states and 957 transitions.
[2023-12-16 15:33:58,096 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:58,096 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 957 transitions.
[2023-12-16 15:33:58,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-16 15:33:58,097 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:58,097 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:58,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:58,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:58,303 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:58,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1683356812, now seen corresponding path program 1 times
[2023-12-16 15:33:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:58,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609164081]
[2023-12-16 15:33:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:58,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:58,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:58,305 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:58,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2023-12-16 15:33:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:58,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-16 15:33:58,538 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:58,550 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:33:58,550 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:58,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:58,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609164081]
[2023-12-16 15:33:58,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609164081] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:58,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:58,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:33:58,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755460237]
[2023-12-16 15:33:58,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:58,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:33:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:33:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:33:58,552 INFO L87 Difference]: Start difference. First operand 730 states and 957 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:33:58,629 INFO L93 Difference]: Finished difference Result 1507 states and 1979 transitions.
[2023-12-16 15:33:58,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:33:58,629 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157
[2023-12-16 15:33:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:33:58,632 INFO L225 Difference]: With dead ends: 1507
[2023-12-16 15:33:58,632 INFO L226 Difference]: Without dead ends: 778
[2023-12-16 15:33:58,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-12-16 15:33:58,633 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 27 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-16 15:33:58,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 504 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-16 15:33:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states.
[2023-12-16 15:33:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 748.
[2023-12-16 15:33:58,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 642 states have (on average 1.2320872274143302) internal successors, (791), 646 states have internal predecessors, (791), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-16 15:33:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 975 transitions.
[2023-12-16 15:33:58,679 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 975 transitions. Word has length 157
[2023-12-16 15:33:58,679 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:33:58,679 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 975 transitions.
[2023-12-16 15:33:58,679 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:33:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 975 transitions.
[2023-12-16 15:33:58,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158
[2023-12-16 15:33:58,680 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:33:58,680 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:33:58,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2023-12-16 15:33:58,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:58,886 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:33:58,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:33:58,886 INFO L85 PathProgramCache]: Analyzing trace with hash 453771663, now seen corresponding path program 1 times
[2023-12-16 15:33:58,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:33:58,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201972664]
[2023-12-16 15:33:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:33:58,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:33:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:33:58,888 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:33:58,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2023-12-16 15:33:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:33:59,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjunts are in the unsatisfiable core
[2023-12-16 15:33:59,233 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:33:59,245 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
[2023-12-16 15:33:59,248 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
[2023-12-16 15:33:59,250 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
[2023-12-16 15:33:59,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:59,438 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 44 treesize of output 40
[2023-12-16 15:33:59,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:33:59,592 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 71 treesize of output 29
[2023-12-16 15:33:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked.
[2023-12-16 15:33:59,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:33:59,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:33:59,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201972664]
[2023-12-16 15:33:59,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201972664] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:33:59,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:33:59,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-12-16 15:33:59,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159164167]
[2023-12-16 15:33:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:33:59,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-16 15:33:59,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:33:59,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-16 15:33:59,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-16 15:33:59,688 INFO L87 Difference]: Start difference. First operand 748 states and 975 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:34:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:01,859 INFO L93 Difference]: Finished difference Result 1652 states and 2152 transitions.
[2023-12-16 15:34:01,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2023-12-16 15:34:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157
[2023-12-16 15:34:01,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:01,862 INFO L225 Difference]: With dead ends: 1652
[2023-12-16 15:34:01,862 INFO L226 Difference]: Without dead ends: 905
[2023-12-16 15:34:01,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:34:01,864 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 288 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:01,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 1140 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-12-16 15:34:01,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states.
[2023-12-16 15:34:01,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 736.
[2023-12-16 15:34:01,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 630 states have (on average 1.2333333333333334) internal successors, (777), 634 states have internal predecessors, (777), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 88 states have call predecessors, (92), 92 states have call successors, (92)
[2023-12-16 15:34:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 961 transitions.
[2023-12-16 15:34:01,910 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 961 transitions. Word has length 157
[2023-12-16 15:34:01,910 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:01,910 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 961 transitions.
[2023-12-16 15:34:01,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 12 states have internal predecessors, (63), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)
[2023-12-16 15:34:01,911 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 961 transitions.
[2023-12-16 15:34:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:01,911 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:01,911 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:01,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:02,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:02,118 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:02,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1166113811, now seen corresponding path program 1 times
[2023-12-16 15:34:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:02,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558261933]
[2023-12-16 15:34:02,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:02,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:02,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:02,120 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:02,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2023-12-16 15:34:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:02,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 22 conjunts are in the unsatisfiable core
[2023-12-16 15:34:02,532 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:02,578 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
[2023-12-16 15:34:03,285 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
[2023-12-16 15:34:03,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:03,504 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
[2023-12-16 15:34:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked.
[2023-12-16 15:34:03,563 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:34:03,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558261933]
[2023-12-16 15:34:03,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558261933] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:34:03,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [833481500]
[2023-12-16 15:34:03,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:03,805 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2023-12-16 15:34:03,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2023-12-16 15:34:03,807 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2023-12-16 15:34:03,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process
[2023-12-16 15:34:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:04,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-16 15:34:04,564 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:04,628 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
[2023-12-16 15:34:05,640 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
[2023-12-16 15:34:05,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:05,868 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
[2023-12-16 15:34:05,882 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked.
[2023-12-16 15:34:05,883 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:34:06,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [833481500] provided 0 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:34:06,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 15:34:06,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15
[2023-12-16 15:34:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151813457]
[2023-12-16 15:34:06,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 15:34:06,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2023-12-16 15:34:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2023-12-16 15:34:06,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:34:06,021 INFO L87 Difference]: Start difference. First operand 736 states and 961 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 15 states have internal predecessors, (127), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40)
[2023-12-16 15:34:06,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:06,715 INFO L93 Difference]: Finished difference Result 1497 states and 1940 transitions.
[2023-12-16 15:34:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-12-16 15:34:06,725 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 15 states have internal predecessors, (127), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 159
[2023-12-16 15:34:06,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:06,729 INFO L225 Difference]: With dead ends: 1497
[2023-12-16 15:34:06,730 INFO L226 Difference]: Without dead ends: 1495
[2023-12-16 15:34:06,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 370 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650
[2023-12-16 15:34:06,731 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 524 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:06,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 920 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 15:34:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states.
[2023-12-16 15:34:06,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1457.
[2023-12-16 15:34:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1240 states have (on average 1.2225806451612904) internal successors, (1516), 1254 states have internal predecessors, (1516), 184 states have call successors, (184), 32 states have call predecessors, (184), 32 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:06,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1884 transitions.
[2023-12-16 15:34:06,880 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1884 transitions. Word has length 159
[2023-12-16 15:34:06,880 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:06,880 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1884 transitions.
[2023-12-16 15:34:06,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 15 states have internal predecessors, (127), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40)
[2023-12-16 15:34:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1884 transitions.
[2023-12-16 15:34:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:06,882 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:06,882 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:06,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:07,094 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 (23)] Ended with exit code 0
[2023-12-16 15:34:07,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:07,288 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:07,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1166173393, now seen corresponding path program 1 times
[2023-12-16 15:34:07,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:07,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315677335]
[2023-12-16 15:34:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:07,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:07,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:07,290 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:07,292 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 (25)] Waiting until timeout for monitored process
[2023-12-16 15:34:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:07,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 15:34:07,578 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:07,582 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
[2023-12-16 15:34:07,626 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
[2023-12-16 15:34:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:34:07,643 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:07,643 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:07,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315677335]
[2023-12-16 15:34:07,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315677335] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:07,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:07,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-16 15:34:07,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239476056]
[2023-12-16 15:34:07,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:07,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 15:34:07,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:07,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 15:34:07,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-16 15:34:07,645 INFO L87 Difference]: Start difference. First operand 1457 states and 1884 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:08,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:08,041 INFO L93 Difference]: Finished difference Result 4417 states and 5710 transitions.
[2023-12-16 15:34:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2023-12-16 15:34:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159
[2023-12-16 15:34:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:08,049 INFO L225 Difference]: With dead ends: 4417
[2023-12-16 15:34:08,049 INFO L226 Difference]: Without dead ends: 2961
[2023-12-16 15:34:08,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2023-12-16 15:34:08,052 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 126 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:08,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 938 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-12-16 15:34:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states.
[2023-12-16 15:34:08,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2107.
[2023-12-16 15:34:08,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1890 states have (on average 1.2338624338624338) internal successors, (2332), 1904 states have internal predecessors, (2332), 184 states have call successors, (184), 32 states have call predecessors, (184), 32 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2700 transitions.
[2023-12-16 15:34:08,175 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2700 transitions. Word has length 159
[2023-12-16 15:34:08,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:08,175 INFO L495 AbstractCegarLoop]: Abstraction has 2107 states and 2700 transitions.
[2023-12-16 15:34:08,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:08,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2700 transitions.
[2023-12-16 15:34:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:08,177 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:08,177 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:08,200 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 (25)] Ended with exit code 0
[2023-12-16 15:34:08,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:08,384 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:08,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:08,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1353786541, now seen corresponding path program 1 times
[2023-12-16 15:34:08,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:08,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537487418]
[2023-12-16 15:34:08,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:08,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:08,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:08,386 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:08,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2023-12-16 15:34:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:08,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 26 conjunts are in the unsatisfiable core
[2023-12-16 15:34:08,654 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:08,782 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 58 treesize of output 45
[2023-12-16 15:34:09,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:09,500 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 64 treesize of output 36
[2023-12-16 15:34:09,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:09,508 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 30 treesize of output 12
[2023-12-16 15:34:09,564 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2023-12-16 15:34:09,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:09,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:09,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537487418]
[2023-12-16 15:34:09,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537487418] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:09,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:09,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2023-12-16 15:34:09,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113577982]
[2023-12-16 15:34:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:09,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2023-12-16 15:34:09,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:09,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2023-12-16 15:34:09,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306
[2023-12-16 15:34:09,566 INFO L87 Difference]: Start difference. First operand 2107 states and 2700 transitions. Second operand has 18 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:12,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:12,564 INFO L93 Difference]: Finished difference Result 5438 states and 6880 transitions.
[2023-12-16 15:34:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2023-12-16 15:34:12,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159
[2023-12-16 15:34:12,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:12,574 INFO L225 Difference]: With dead ends: 5438
[2023-12-16 15:34:12,574 INFO L226 Difference]: Without dead ends: 3332
[2023-12-16 15:34:12,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=232, Invalid=1028, Unknown=0, NotChecked=0, Total=1260
[2023-12-16 15:34:12,577 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 490 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:12,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 889 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-12-16 15:34:12,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states.
[2023-12-16 15:34:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 2079.
[2023-12-16 15:34:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2079 states, 1854 states have (on average 1.2146709816612729) internal successors, (2252), 1868 states have internal predecessors, (2252), 184 states have call successors, (184), 40 states have call predecessors, (184), 40 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2079 states to 2079 states and 2620 transitions.
[2023-12-16 15:34:12,713 INFO L78 Accepts]: Start accepts. Automaton has 2079 states and 2620 transitions. Word has length 159
[2023-12-16 15:34:12,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:12,713 INFO L495 AbstractCegarLoop]: Abstraction has 2079 states and 2620 transitions.
[2023-12-16 15:34:12,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.25) internal successors, (68), 17 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2079 states and 2620 transitions.
[2023-12-16 15:34:12,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:12,715 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:12,715 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:12,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:12,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:12,922 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:12,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:12,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1669852955, now seen corresponding path program 1 times
[2023-12-16 15:34:12,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:12,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286822009]
[2023-12-16 15:34:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:12,923 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
[2023-12-16 15:34:12,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:12,924 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:12,925 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 (27)] Waiting until timeout for monitored process
[2023-12-16 15:34:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:13,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 9 conjunts are in the unsatisfiable core
[2023-12-16 15:34:13,189 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:13,193 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
[2023-12-16 15:34:13,312 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 31 treesize of output 19
[2023-12-16 15:34:13,313 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 35 treesize of output 17
[2023-12-16 15:34:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:34:13,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:13,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:13,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286822009]
[2023-12-16 15:34:13,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286822009] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:13,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:13,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-16 15:34:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235900445]
[2023-12-16 15:34:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:13,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 15:34:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 15:34:13,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-16 15:34:13,341 INFO L87 Difference]: Start difference. First operand 2079 states and 2620 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:14,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:14,336 INFO L93 Difference]: Finished difference Result 6363 states and 7961 transitions.
[2023-12-16 15:34:14,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:34:14,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159
[2023-12-16 15:34:14,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:14,350 INFO L225 Difference]: With dead ends: 6363
[2023-12-16 15:34:14,350 INFO L226 Difference]: Without dead ends: 4285
[2023-12-16 15:34:14,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2023-12-16 15:34:14,354 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 309 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:14,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 572 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2023-12-16 15:34:14,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4285 states.
[2023-12-16 15:34:14,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4285 to 2521.
[2023-12-16 15:34:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2296 states have (on average 1.1942508710801394) internal successors, (2742), 2310 states have internal predecessors, (2742), 184 states have call successors, (184), 40 states have call predecessors, (184), 40 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3110 transitions.
[2023-12-16 15:34:14,526 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3110 transitions. Word has length 159
[2023-12-16 15:34:14,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:14,526 INFO L495 AbstractCegarLoop]: Abstraction has 2521 states and 3110 transitions.
[2023-12-16 15:34:14,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:14,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3110 transitions.
[2023-12-16 15:34:14,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:14,529 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:14,529 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:14,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:14,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:14,736 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:14,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:14,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1151843987, now seen corresponding path program 1 times
[2023-12-16 15:34:14,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:14,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637287189]
[2023-12-16 15:34:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:14,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:14,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:14,738 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:14,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process
[2023-12-16 15:34:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:14,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 15:34:14,976 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:15,191 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 33 treesize of output 15
[2023-12-16 15:34:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2023-12-16 15:34:15,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:15,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:15,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637287189]
[2023-12-16 15:34:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637287189] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:15,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:15,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2023-12-16 15:34:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313110343]
[2023-12-16 15:34:15,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:15,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-16 15:34:15,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:15,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-16 15:34:15,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-16 15:34:15,217 INFO L87 Difference]: Start difference. First operand 2521 states and 3110 transitions. Second operand has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:15,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:15,783 INFO L93 Difference]: Finished difference Result 5117 states and 6295 transitions.
[2023-12-16 15:34:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-12-16 15:34:15,784 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159
[2023-12-16 15:34:15,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:15,789 INFO L225 Difference]: With dead ends: 5117
[2023-12-16 15:34:15,789 INFO L226 Difference]: Without dead ends: 2597
[2023-12-16 15:34:15,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:34:15,791 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 104 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:15,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 534 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-16 15:34:15,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states.
[2023-12-16 15:34:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2279.
[2023-12-16 15:34:15,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 2054 states have (on average 1.1888997078870496) internal successors, (2442), 2068 states have internal predecessors, (2442), 184 states have call successors, (184), 40 states have call predecessors, (184), 40 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:15,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 2810 transitions.
[2023-12-16 15:34:15,918 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 2810 transitions. Word has length 159
[2023-12-16 15:34:15,919 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:15,919 INFO L495 AbstractCegarLoop]: Abstraction has 2279 states and 2810 transitions.
[2023-12-16 15:34:15,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:15,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 2810 transitions.
[2023-12-16 15:34:15,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2023-12-16 15:34:15,921 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:15,921 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:15,928 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
[2023-12-16 15:34:16,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:16,126 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:16,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash -561123761, now seen corresponding path program 1 times
[2023-12-16 15:34:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233051083]
[2023-12-16 15:34:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:16,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:16,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:16,128 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:16,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process
[2023-12-16 15:34:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:16,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 15:34:16,364 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:16,505 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 33 treesize of output 15
[2023-12-16 15:34:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked.
[2023-12-16 15:34:16,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:16,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:16,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233051083]
[2023-12-16 15:34:16,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233051083] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:16,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:16,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2023-12-16 15:34:16,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109656400]
[2023-12-16 15:34:16,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:16,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-16 15:34:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-16 15:34:16,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2023-12-16 15:34:16,527 INFO L87 Difference]: Start difference. First operand 2279 states and 2810 transitions. Second operand has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:17,059 INFO L93 Difference]: Finished difference Result 4197 states and 5151 transitions.
[2023-12-16 15:34:17,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-12-16 15:34:17,059 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159
[2023-12-16 15:34:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:17,063 INFO L225 Difference]: With dead ends: 4197
[2023-12-16 15:34:17,063 INFO L226 Difference]: Without dead ends: 1919
[2023-12-16 15:34:17,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342
[2023-12-16 15:34:17,066 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 114 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:17,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 531 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-16 15:34:17,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states.
[2023-12-16 15:34:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1855.
[2023-12-16 15:34:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1855 states, 1630 states have (on average 1.1607361963190184) internal successors, (1892), 1644 states have internal predecessors, (1892), 184 states have call successors, (184), 40 states have call predecessors, (184), 40 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:17,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2260 transitions.
[2023-12-16 15:34:17,202 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2260 transitions. Word has length 159
[2023-12-16 15:34:17,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:17,202 INFO L495 AbstractCegarLoop]: Abstraction has 1855 states and 2260 transitions.
[2023-12-16 15:34:17,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)
[2023-12-16 15:34:17,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2260 transitions.
[2023-12-16 15:34:17,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-16 15:34:17,203 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:17,204 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:17,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:17,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:17,410 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:17,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash 382897236, now seen corresponding path program 1 times
[2023-12-16 15:34:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:17,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025431635]
[2023-12-16 15:34:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:17,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:17,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:17,429 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:17,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process
[2023-12-16 15:34:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:17,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-12-16 15:34:17,712 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:34:17,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:17,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:17,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025431635]
[2023-12-16 15:34:17,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025431635] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:17,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:17,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-12-16 15:34:17,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17169499]
[2023-12-16 15:34:17,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:17,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-12-16 15:34:17,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:17,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-12-16 15:34:17,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-12-16 15:34:17,739 INFO L87 Difference]: Start difference. First operand 1855 states and 2260 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:17,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:17,943 INFO L93 Difference]: Finished difference Result 3877 states and 4699 transitions.
[2023-12-16 15:34:17,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-16 15:34:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160
[2023-12-16 15:34:17,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:17,947 INFO L225 Difference]: With dead ends: 3877
[2023-12-16 15:34:17,947 INFO L226 Difference]: Without dead ends: 2023
[2023-12-16 15:34:17,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-12-16 15:34:17,948 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 30 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 620 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
[2023-12-16 15:34:17,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 620 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-16 15:34:17,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states.
[2023-12-16 15:34:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1867.
[2023-12-16 15:34:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1867 states, 1642 states have (on average 1.1595615103532277) internal successors, (1904), 1656 states have internal predecessors, (1904), 184 states have call successors, (184), 40 states have call predecessors, (184), 40 states have return successors, (184), 170 states have call predecessors, (184), 184 states have call successors, (184)
[2023-12-16 15:34:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1867 states to 1867 states and 2272 transitions.
[2023-12-16 15:34:18,097 INFO L78 Accepts]: Start accepts. Automaton has 1867 states and 2272 transitions. Word has length 160
[2023-12-16 15:34:18,097 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:18,098 INFO L495 AbstractCegarLoop]: Abstraction has 1867 states and 2272 transitions.
[2023-12-16 15:34:18,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1867 states and 2272 transitions.
[2023-12-16 15:34:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-16 15:34:18,099 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:18,099 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:18,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:18,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:18,306 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:18,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash 775924246, now seen corresponding path program 1 times
[2023-12-16 15:34:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:18,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260831087]
[2023-12-16 15:34:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:18,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:18,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:18,308 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-12-16 15:34:18,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process
[2023-12-16 15:34:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:18,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 37 conjunts are in the unsatisfiable core
[2023-12-16 15:34:18,843 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:18,849 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
[2023-12-16 15:34:18,930 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
[2023-12-16 15:34:19,346 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 47 treesize of output 34
[2023-12-16 15:34:19,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:19,584 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 35 treesize of output 37
[2023-12-16 15:34:19,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:19,929 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 45 treesize of output 50
[2023-12-16 15:34:20,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:20,601 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 60 treesize of output 53
[2023-12-16 15:34:20,694 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 26 treesize of output 25
[2023-12-16 15:34:20,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:20,844 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 65 treesize of output 55
[2023-12-16 15:34:21,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:21,497 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 153 treesize of output 93
[2023-12-16 15:34:21,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:21,503 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 145 treesize of output 97
[2023-12-16 15:34:21,635 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 577 proven. 96 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked.
[2023-12-16 15:34:21,636 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:34:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:34:21,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [260831087]
[2023-12-16 15:34:21,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [260831087] provided 1 perfect and 1 imperfect interpolant sequences
[2023-12-16 15:34:21,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-12-16 15:34:21,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [24] total 27
[2023-12-16 15:34:21,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397555094]
[2023-12-16 15:34:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:21,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-12-16 15:34:21,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:21,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-12-16 15:34:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702
[2023-12-16 15:34:21,950 INFO L87 Difference]: Start difference. First operand 1867 states and 2272 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:22,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:22,819 INFO L93 Difference]: Finished difference Result 3775 states and 4568 transitions.
[2023-12-16 15:34:22,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2023-12-16 15:34:22,820 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160
[2023-12-16 15:34:22,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:22,824 INFO L225 Difference]: With dead ends: 3775
[2023-12-16 15:34:22,824 INFO L226 Difference]: Without dead ends: 2635
[2023-12-16 15:34:22,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=199, Invalid=1207, Unknown=0, NotChecked=0, Total=1406
[2023-12-16 15:34:22,826 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 92 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:22,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 877 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2023-12-16 15:34:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states.
[2023-12-16 15:34:22,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2369.
[2023-12-16 15:34:22,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2369 states, 2108 states have (on average 1.1631878557874762) internal successors, (2452), 2134 states have internal predecessors, (2452), 208 states have call successors, (208), 52 states have call predecessors, (208), 52 states have return successors, (208), 182 states have call predecessors, (208), 208 states have call successors, (208)
[2023-12-16 15:34:22,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2369 states to 2369 states and 2868 transitions.
[2023-12-16 15:34:22,987 INFO L78 Accepts]: Start accepts. Automaton has 2369 states and 2868 transitions. Word has length 160
[2023-12-16 15:34:22,988 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:22,988 INFO L495 AbstractCegarLoop]: Abstraction has 2369 states and 2868 transitions.
[2023-12-16 15:34:22,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:22,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2369 states and 2868 transitions.
[2023-12-16 15:34:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2023-12-16 15:34:22,989 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:22,989 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:22,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:23,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:23,197 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:23,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:23,198 INFO L85 PathProgramCache]: Analyzing trace with hash 641910740, now seen corresponding path program 1 times
[2023-12-16 15:34:23,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:23,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558203188]
[2023-12-16 15:34:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:23,199 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:23,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:23,200 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)
[2023-12-16 15:34:23,234 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
[2023-12-16 15:34:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:23,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-16 15:34:23,501 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:24,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-16 15:34:24,263 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 60 treesize of output 28
[2023-12-16 15:34:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked.
[2023-12-16 15:34:24,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-16 15:34:24,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558203188]
[2023-12-16 15:34:24,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558203188] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-16 15:34:24,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-16 15:34:24,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-12-16 15:34:24,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117118975]
[2023-12-16 15:34:24,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-16 15:34:24,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-16 15:34:24,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:24,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-16 15:34:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-12-16 15:34:24,629 INFO L87 Difference]: Start difference. First operand 2369 states and 2868 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:27,808 INFO L93 Difference]: Finished difference Result 5263 states and 6316 transitions.
[2023-12-16 15:34:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-16 15:34:27,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160
[2023-12-16 15:34:27,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:27,817 INFO L225 Difference]: With dead ends: 5263
[2023-12-16 15:34:27,817 INFO L226 Difference]: Without dead ends: 2895
[2023-12-16 15:34:27,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-12-16 15:34:27,819 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 61 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:27,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 513 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-12-16 15:34:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states.
[2023-12-16 15:34:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2713.
[2023-12-16 15:34:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2713 states, 2374 states have (on average 1.1457455770850884) internal successors, (2720), 2418 states have internal predecessors, (2720), 268 states have call successors, (268), 70 states have call predecessors, (268), 70 states have return successors, (268), 224 states have call predecessors, (268), 268 states have call successors, (268)
[2023-12-16 15:34:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2713 states to 2713 states and 3256 transitions.
[2023-12-16 15:34:28,043 INFO L78 Accepts]: Start accepts. Automaton has 2713 states and 3256 transitions. Word has length 160
[2023-12-16 15:34:28,043 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:28,043 INFO L495 AbstractCegarLoop]: Abstraction has 2713 states and 3256 transitions.
[2023-12-16 15:34:28,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)
[2023-12-16 15:34:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2713 states and 3256 transitions.
[2023-12-16 15:34:28,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2023-12-16 15:34:28,045 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:28,045 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:28,065 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
[2023-12-16 15:34:28,252 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
[2023-12-16 15:34:28,253 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:28,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1263843547, now seen corresponding path program 1 times
[2023-12-16 15:34:28,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973779054]
[2023-12-16 15:34:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:28,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:28,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:28,254 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)
[2023-12-16 15:34:28,255 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
[2023-12-16 15:34:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:28,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 10 conjunts are in the unsatisfiable core
[2023-12-16 15:34:28,517 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:28,620 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 97 treesize of output 43
[2023-12-16 15:34:28,674 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 204 proven. 8 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked.
[2023-12-16 15:34:28,674 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-16 15:34:28,888 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 61 treesize of output 25
[2023-12-16 15:34:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked.
[2023-12-16 15:34:28,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-12-16 15:34:28,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973779054]
[2023-12-16 15:34:28,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973779054] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-16 15:34:28,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-16 15:34:28,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12
[2023-12-16 15:34:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791864829]
[2023-12-16 15:34:28,895 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-16 15:34:28,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-16 15:34:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-12-16 15:34:28,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-16 15:34:28,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132
[2023-12-16 15:34:28,896 INFO L87 Difference]: Start difference. First operand 2713 states and 3256 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39)
[2023-12-16 15:34:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-16 15:34:29,866 INFO L93 Difference]: Finished difference Result 5673 states and 6791 transitions.
[2023-12-16 15:34:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2023-12-16 15:34:29,867 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39) Word has length 161
[2023-12-16 15:34:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-16 15:34:29,882 INFO L225 Difference]: With dead ends: 5673
[2023-12-16 15:34:29,882 INFO L226 Difference]: Without dead ends: 2785
[2023-12-16 15:34:29,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462
[2023-12-16 15:34:29,886 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 136 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2023-12-16 15:34:29,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 707 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2023-12-16 15:34:29,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states.
[2023-12-16 15:34:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2681.
[2023-12-16 15:34:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2342 states have (on average 1.134073441502989) internal successors, (2656), 2386 states have internal predecessors, (2656), 268 states have call successors, (268), 70 states have call predecessors, (268), 70 states have return successors, (268), 224 states have call predecessors, (268), 268 states have call successors, (268)
[2023-12-16 15:34:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 3192 transitions.
[2023-12-16 15:34:30,113 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 3192 transitions. Word has length 161
[2023-12-16 15:34:30,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-16 15:34:30,113 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 3192 transitions.
[2023-12-16 15:34:30,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 4 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (39), 3 states have call predecessors, (39), 4 states have call successors, (39)
[2023-12-16 15:34:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 3192 transitions.
[2023-12-16 15:34:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2023-12-16 15:34:30,114 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-16 15:34:30,114 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:30,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0
[2023-12-16 15:34:30,321 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
[2023-12-16 15:34:30,322 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-16 15:34:30,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-16 15:34:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -667282087, now seen corresponding path program 1 times
[2023-12-16 15:34:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-12-16 15:34:30,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504958056]
[2023-12-16 15:34:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-16 15:34:30,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-12-16 15:34:30,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2023-12-16 15:34:30,323 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)
[2023-12-16 15:34:30,356 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
Received shutdown request...
[2023-12-16 15:34:30,583 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 15:34:30,606 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-16 15:34:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-16 15:34:30,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 25 conjunts are in the unsatisfiable core
[2023-12-16 15:34:30,730 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-16 15:34:30,752 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-16 15:34:30,758 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
[2023-12-16 15:34:30,952 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
[2023-12-16 15:34:30,953 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context.
[2023-12-16 15:34:30,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-16 15:34:30,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-16 15:34:30,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:34:30 BoogieIcfgContainer
[2023-12-16 15:34:30,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-16 15:34:30,959 INFO L158 Benchmark]: Toolchain (without parser) took 69830.12ms. Allocated memory was 288.4MB in the beginning and 622.9MB in the end (delta: 334.5MB). Free memory was 234.5MB in the beginning and 482.2MB in the end (delta: -247.7MB). Peak memory consumption was 88.0MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,959 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 204.5MB. Free memory was 154.8MB in the beginning and 154.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB.
[2023-12-16 15:34:30,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.86ms. Allocated memory is still 288.4MB. Free memory was 234.5MB in the beginning and 218.4MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.72ms. Allocated memory is still 288.4MB. Free memory was 218.4MB in the beginning and 214.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,959 INFO L158 Benchmark]: Boogie Preprocessor took 98.52ms. Allocated memory is still 288.4MB. Free memory was 214.9MB in the beginning and 209.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,960 INFO L158 Benchmark]: RCFGBuilder took 721.17ms. Allocated memory is still 288.4MB. Free memory was 209.7MB in the beginning and 238.5MB in the end (delta: -28.8MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,960 INFO L158 Benchmark]: TraceAbstraction took 68623.68ms. Allocated memory was 288.4MB in the beginning and 622.9MB in the end (delta: 334.5MB). Free memory was 238.0MB in the beginning and 482.2MB in the end (delta: -244.2MB). Peak memory consumption was 90.8MB. Max. memory is 8.0GB.
[2023-12-16 15:34:30,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.15ms. Allocated memory is still 204.5MB. Free memory was 154.8MB in the beginning and 154.7MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 316.86ms. Allocated memory is still 288.4MB. Free memory was 234.5MB in the beginning and 218.4MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 56.72ms. Allocated memory is still 288.4MB. Free memory was 218.4MB in the beginning and 214.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 98.52ms. Allocated memory is still 288.4MB. Free memory was 214.9MB in the beginning and 209.7MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB.
* RCFGBuilder took 721.17ms. Allocated memory is still 288.4MB. Free memory was 209.7MB in the beginning and 238.5MB in the end (delta: -28.8MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB.
* TraceAbstraction took 68623.68ms. Allocated memory was 288.4MB in the beginning and 622.9MB in the end (delta: 334.5MB). Free memory was 238.0MB in the beginning and 482.2MB in the end (delta: -244.2MB). Peak memory consumption was 90.8MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction)
Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ATOM-1 context.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.6s, OverallIterations: 32, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6103 SdHoareTripleChecker+Valid, 19.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5999 mSDsluCounter, 19346 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14864 mSDsCounter, 636 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9082 IncrementalHoareTripleChecker+Invalid, 9718 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 636 mSolverCounterUnsat, 4482 mSDtfsCounter, 9082 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6722 GetRequests, 6272 SyntacticMatches, 5 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1909 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2713occurred in iteration=30, InterpolantAutomatonStates: 307, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 31 MinimizatonAttempts, 9723 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 4985 NumberOfCodeBlocks, 4985 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 6504 ConstructedInterpolants, 733 QuantifiedInterpolants, 64592 SizeOfPredicates, 307 NumberOfNonLiveVariables, 10219 ConjunctsInSsa, 494 ConjunctsInUnsatCore, 42 InterpolantComputations, 29 PerfectInterpolantSequences, 31129/31920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown