/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-ap_file-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 15:37:07,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 15:37:07,302 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 15:37:07,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 15:37:07,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 15:37:07,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 15:37:07,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 15:37:07,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 15:37:07,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 15:37:07,337 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 15:37:07,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 15:37:07,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 15:37:07,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 15:37:07,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 15:37:07,339 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 15:37:07,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 15:37:07,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 15:37:07,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 15:37:07,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 15:37:07,341 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 15:37:07,341 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 15:37:07,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 15:37:07,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 15:37:07,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 15:37:07,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 15:37:07,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 15:37:07,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:37:07,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 15:37:07,344 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 15:37:07,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 15:37:07,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 15:37:07,345 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 15:37:07,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 15:37:07,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 15:37:07,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 15:37:07,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 15:37:07,548 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 15:37:07,549 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 15:37:07,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2023-12-16 15:37:08,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 15:37:08,691 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 15:37:08,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-27.i [2023-12-16 15:37:08,699 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afef9c07/91676617a3ec4be5af9631d4424fa2c8/FLAGd1a83987c [2023-12-16 15:37:08,720 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3afef9c07/91676617a3ec4be5af9631d4424fa2c8 [2023-12-16 15:37:08,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 15:37:08,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 15:37:08,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 15:37:08,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 15:37:08,727 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 15:37:08,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:08,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@942de83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08, skipping insertion in model container [2023-12-16 15:37:08,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:08,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 15:37:08,846 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-ap_file-27.i[917,930] [2023-12-16 15:37:08,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:37:08,896 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 15:37:08,904 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-ap_file-27.i[917,930] [2023-12-16 15:37:08,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 15:37:08,950 INFO L206 MainTranslator]: Completed translation [2023-12-16 15:37:08,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08 WrapperNode [2023-12-16 15:37:08,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 15:37:08,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 15:37:08,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 15:37:08,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 15:37:08,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:08,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:08,993 INFO L138 Inliner]: procedures = 30, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 441 [2023-12-16 15:37:08,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 15:37:08,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 15:37:08,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 15:37:08,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 15:37:09,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,037 INFO L175 MemorySlicer]: Split 123 memory accesses to 5 slices as follows [2, 16, 70, 11, 24]. 57 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 6, 1, 3]. The 16 writes are split as follows [0, 2, 8, 1, 5]. [2023-12-16 15:37:09,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 15:37:09,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 15:37:09,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 15:37:09,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 15:37:09,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (1/1) ... [2023-12-16 15:37:09,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 15:37:09,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 15:37:09,102 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 15:37:09,108 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 15:37:09,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 15:37:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 15:37:09,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 15:37:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-12-16 15:37:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-12-16 15:37:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-12-16 15:37:09,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-12-16 15:37:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-12-16 15:37:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-12-16 15:37:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-12-16 15:37:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-12-16 15:37:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-12-16 15:37:09,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-12-16 15:37:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 15:37:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 15:37:09,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 15:37:09,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-12-16 15:37:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-12-16 15:37:09,235 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 15:37:09,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 15:37:09,720 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 15:37:09,766 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 15:37:09,766 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 15:37:09,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:09 BoogieIcfgContainer [2023-12-16 15:37:09,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 15:37:09,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 15:37:09,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 15:37:09,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 15:37:09,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:37:08" (1/3) ... [2023-12-16 15:37:09,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bd2dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:09, skipping insertion in model container [2023-12-16 15:37:09,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:37:08" (2/3) ... [2023-12-16 15:37:09,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bd2dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:37:09, skipping insertion in model container [2023-12-16 15:37:09,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:37:09" (3/3) ... [2023-12-16 15:37:09,778 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-27.i [2023-12-16 15:37:09,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 15:37:09,789 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 15:37:09,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 15:37:09,823 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;@4e97fc0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 15:37:09,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 15:37:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:37:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:37:09,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:09,838 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:09,839 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:09,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1954445179, now seen corresponding path program 1 times [2023-12-16 15:37:09,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:09,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206789477] [2023-12-16 15:37:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:09,852 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 15:37:09,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:09,853 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 15:37:09,856 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 15:37:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:10,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 15:37:10,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-12-16 15:37:10,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:37:10,151 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:10,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206789477] [2023-12-16 15:37:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206789477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:37:10,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:37:10,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 15:37:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698212115] [2023-12-16 15:37:10,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:10,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 15:37:10,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 15:37:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 15:37:10,175 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:37:10,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:10,217 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2023-12-16 15:37:10,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 15:37:10,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2023-12-16 15:37:10,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:10,224 INFO L225 Difference]: With dead ends: 171 [2023-12-16 15:37:10,225 INFO L226 Difference]: Without dead ends: 85 [2023-12-16 15:37:10,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 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 15:37:10,230 INFO L413 NwaCegarLoop]: 120 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, 120 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 15:37:10,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 15:37:10,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-16 15:37:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-16 15:37:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:37:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-12-16 15:37:10,261 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2023-12-16 15:37:10,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:10,261 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-12-16 15:37:10,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 15:37:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-12-16 15:37:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:37:10,265 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:10,265 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:10,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:10,471 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 15:37:10,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:10,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2107448995, now seen corresponding path program 1 times [2023-12-16 15:37:10,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:10,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780483045] [2023-12-16 15:37:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:10,473 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 15:37:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:10,475 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 15:37:10,491 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 15:37:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:10,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 15:37:10,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 13 proven. 207 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-16 15:37:11,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:37:11,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:11,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780483045] [2023-12-16 15:37:11,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780483045] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:11,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:37:11,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 11 [2023-12-16 15:37:11,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9142749] [2023-12-16 15:37:11,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:11,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:37:11,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:37:11,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-16 15:37:11,168 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:11,283 INFO L93 Difference]: Finished difference Result 214 states and 314 transitions. [2023-12-16 15:37:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:37:11,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 126 [2023-12-16 15:37:11,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:11,288 INFO L225 Difference]: With dead ends: 214 [2023-12-16 15:37:11,288 INFO L226 Difference]: Without dead ends: 130 [2023-12-16 15:37:11,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:37:11,289 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 64 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:11,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 433 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:37:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-16 15:37:11,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 89. [2023-12-16 15:37:11,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 70 states have internal predecessors, (96), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 15:37:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 130 transitions. [2023-12-16 15:37:11,300 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 130 transitions. Word has length 126 [2023-12-16 15:37:11,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:11,301 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 130 transitions. [2023-12-16 15:37:11,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:11,301 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 130 transitions. [2023-12-16 15:37:11,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 15:37:11,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:11,304 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:11,322 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 15:37:11,511 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 15:37:11,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:11,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:11,512 INFO L85 PathProgramCache]: Analyzing trace with hash 113304289, now seen corresponding path program 1 times [2023-12-16 15:37:11,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:11,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962620007] [2023-12-16 15:37:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:11,513 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 15:37:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:11,514 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 15:37:11,516 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 15:37:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:11,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 15:37:11,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:11,924 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 23 treesize of output 11 [2023-12-16 15:37:12,031 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 23 treesize of output 11 [2023-12-16 15:37:12,144 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 23 treesize of output 11 [2023-12-16 15:37:12,241 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 23 treesize of output 11 [2023-12-16 15:37:12,412 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-16 15:37:12,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:12,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:12,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962620007] [2023-12-16 15:37:12,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962620007] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:12,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [317956070] [2023-12-16 15:37:12,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:12,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:12,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:12,565 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:12,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 15:37:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:12,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 15:37:12,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:13,539 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 15:37:13,736 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 15:37:13,932 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 15:37:14,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2023-12-16 15:37:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-16 15:37:14,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:19,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [317956070] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:19,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:37:19,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2023-12-16 15:37:19,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725966983] [2023-12-16 15:37:19,556 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:37:19,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 15:37:19,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:19,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 15:37:19,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=223, Unknown=1, NotChecked=0, Total=272 [2023-12-16 15:37:19,560 INFO L87 Difference]: Start difference. First operand 89 states and 130 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:37:20,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:20,752 INFO L93 Difference]: Finished difference Result 337 states and 492 transitions. [2023-12-16 15:37:20,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 15:37:20,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 126 [2023-12-16 15:37:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:20,755 INFO L225 Difference]: With dead ends: 337 [2023-12-16 15:37:20,755 INFO L226 Difference]: Without dead ends: 249 [2023-12-16 15:37:20,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=136, Invalid=463, Unknown=1, NotChecked=0, Total=600 [2023-12-16 15:37:20,756 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 412 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:20,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 759 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 15:37:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-12-16 15:37:20,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 223. [2023-12-16 15:37:20,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 179 states have (on average 1.3743016759776536) internal successors, (246), 180 states have internal predecessors, (246), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:37:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 326 transitions. [2023-12-16 15:37:20,797 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 326 transitions. Word has length 126 [2023-12-16 15:37:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:20,798 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 326 transitions. [2023-12-16 15:37:20,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:37:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 326 transitions. [2023-12-16 15:37:20,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:37:20,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:20,800 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:20,808 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 15:37:21,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-16 15:37:21,205 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=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:21,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:21,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:21,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1597776678, now seen corresponding path program 1 times [2023-12-16 15:37:21,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:21,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509751899] [2023-12-16 15:37:21,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:21,206 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 15:37:21,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:21,207 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 15:37:21,209 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 15:37:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:21,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 15:37:21,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:21,721 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 23 treesize of output 11 [2023-12-16 15:37:21,879 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 23 treesize of output 11 [2023-12-16 15:37:22,054 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 23 treesize of output 11 [2023-12-16 15:37:22,216 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 23 treesize of output 11 [2023-12-16 15:37:22,595 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 23 treesize of output 11 [2023-12-16 15:37:22,631 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-16 15:37:22,631 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:22,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:22,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509751899] [2023-12-16 15:37:22,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509751899] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:22,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [165599399] [2023-12-16 15:37:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:22,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:22,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-16 15:37:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:23,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 15:37:23,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:23,416 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 23 treesize of output 11 [2023-12-16 15:37:23,608 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 23 treesize of output 11 [2023-12-16 15:37:23,827 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 23 treesize of output 11 [2023-12-16 15:37:24,024 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 23 treesize of output 11 [2023-12-16 15:37:24,479 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 23 treesize of output 11 [2023-12-16 15:37:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-16 15:37:24,513 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [165599399] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:24,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:37:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-16 15:37:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785843465] [2023-12-16 15:37:24,584 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:37:24,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 15:37:24,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:24,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 15:37:24,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-12-16 15:37:24,587 INFO L87 Difference]: Start difference. First operand 223 states and 326 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:37:24,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:24,885 INFO L93 Difference]: Finished difference Result 449 states and 655 transitions. [2023-12-16 15:37:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 15:37:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 128 [2023-12-16 15:37:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:24,888 INFO L225 Difference]: With dead ends: 449 [2023-12-16 15:37:24,888 INFO L226 Difference]: Without dead ends: 227 [2023-12-16 15:37:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:37:24,890 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 240 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:24,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 493 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 15:37:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-16 15:37:24,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 223. [2023-12-16 15:37:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 179 states have (on average 1.3687150837988826) internal successors, (245), 180 states have internal predecessors, (245), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:37:24,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 325 transitions. [2023-12-16 15:37:24,911 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 325 transitions. Word has length 128 [2023-12-16 15:37:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:24,912 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 325 transitions. [2023-12-16 15:37:24,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 15:37:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 325 transitions. [2023-12-16 15:37:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 15:37:24,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:24,913 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:24,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:25,124 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:25,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 15:37:25,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:25,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:25,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1169562966, now seen corresponding path program 1 times [2023-12-16 15:37:25,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:25,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194858999] [2023-12-16 15:37:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:25,321 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 15:37:25,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:25,322 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 15:37:25,323 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 15:37:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:25,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 15:37:25,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:25,761 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 15:37:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 13 proven. 207 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-12-16 15:37:25,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:37:25,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:25,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194858999] [2023-12-16 15:37:25,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194858999] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:25,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:37:25,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-12-16 15:37:25,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88990993] [2023-12-16 15:37:25,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:25,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 15:37:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:25,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 15:37:25,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-12-16 15:37:25,888 INFO L87 Difference]: Start difference. First operand 223 states and 325 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:25,999 INFO L93 Difference]: Finished difference Result 564 states and 823 transitions. [2023-12-16 15:37:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 15:37:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 128 [2023-12-16 15:37:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:26,002 INFO L225 Difference]: With dead ends: 564 [2023-12-16 15:37:26,002 INFO L226 Difference]: Without dead ends: 342 [2023-12-16 15:37:26,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-12-16 15:37:26,003 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 114 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:26,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 434 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 15:37:26,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-12-16 15:37:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 251. [2023-12-16 15:37:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 207 states have (on average 1.3623188405797102) internal successors, (282), 208 states have internal predecessors, (282), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:37:26,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 362 transitions. [2023-12-16 15:37:26,021 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 362 transitions. Word has length 128 [2023-12-16 15:37:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:26,022 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 362 transitions. [2023-12-16 15:37:26,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 362 transitions. [2023-12-16 15:37:26,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 15:37:26,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:26,023 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:26,030 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 15:37:26,228 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 15:37:26,228 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:26,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1912820860, now seen corresponding path program 1 times [2023-12-16 15:37:26,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:26,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109012106] [2023-12-16 15:37:26,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:26,229 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 15:37:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:26,230 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 15:37:26,231 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 15:37:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:26,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-16 15:37:26,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:27,245 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 8 treesize of output 1 [2023-12-16 15:37:27,859 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 30 treesize of output 14 [2023-12-16 15:37:28,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-12-16 15:37:30,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2023-12-16 15:37:30,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:30,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 51 [2023-12-16 15:37:30,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:30,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 33 [2023-12-16 15:37:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 280 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-16 15:37:30,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:31,290 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109012106] [2023-12-16 15:37:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109012106] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1792467310] [2023-12-16 15:37:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:31,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:31,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:31,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:31,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-16 15:37:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:31,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 15:37:31,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:32,336 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 15:37:32,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-16 15:37:32,480 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 16 treesize of output 8 [2023-12-16 15:37:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:37:32,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:37:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1792467310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:37:32,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 15:37:32,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2023-12-16 15:37:32,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296513613] [2023-12-16 15:37:32,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:32,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 15:37:32,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:32,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 15:37:32,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 15:37:32,485 INFO L87 Difference]: Start difference. First operand 251 states and 362 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:32,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:32,861 INFO L93 Difference]: Finished difference Result 429 states and 616 transitions. [2023-12-16 15:37:32,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 15:37:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-16 15:37:32,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:32,864 INFO L225 Difference]: With dead ends: 429 [2023-12-16 15:37:32,864 INFO L226 Difference]: Without dead ends: 274 [2023-12-16 15:37:32,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=268, Invalid=1292, Unknown=0, NotChecked=0, Total=1560 [2023-12-16 15:37:32,866 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 216 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:32,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 376 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 15:37:32,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-16 15:37:32,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 251. [2023-12-16 15:37:32,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 207 states have internal predecessors, (278), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:37:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 358 transitions. [2023-12-16 15:37:32,896 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 358 transitions. Word has length 129 [2023-12-16 15:37:32,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:32,897 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 358 transitions. [2023-12-16 15:37:32,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 358 transitions. [2023-12-16 15:37:32,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 15:37:32,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:32,898 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:32,905 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 15:37:33,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:33,308 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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:33,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:33,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:33,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1336855164, now seen corresponding path program 1 times [2023-12-16 15:37:33,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:33,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865473748] [2023-12-16 15:37:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:33,309 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 15:37:33,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:33,310 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 15:37:33,311 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 15:37:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:33,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-16 15:37:33,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:34,359 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 8 treesize of output 1 [2023-12-16 15:37:34,916 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 30 treesize of output 14 [2023-12-16 15:37:35,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-12-16 15:37:37,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2023-12-16 15:37:37,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:37,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 42 [2023-12-16 15:37:37,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:37:37,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 24 [2023-12-16 15:37:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 280 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-16 15:37:37,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:38,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:38,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865473748] [2023-12-16 15:37:38,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865473748] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:38,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1012073255] [2023-12-16 15:37:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:38,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:38,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:38,222 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:38,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-16 15:37:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:38,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 15:37:38,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:39,478 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 15 treesize of output 1 [2023-12-16 15:37:40,390 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 30 treesize of output 14 [2023-12-16 15:37:41,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-12-16 15:37:43,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2023-12-16 15:37:43,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 42 [2023-12-16 15:37:43,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 26 [2023-12-16 15:37:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 114 proven. 280 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-12-16 15:37:43,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:43,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1012073255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:43,962 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:37:43,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-12-16 15:37:43,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463709903] [2023-12-16 15:37:43,962 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:37:43,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-16 15:37:43,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:43,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-16 15:37:43,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=2914, Unknown=0, NotChecked=0, Total=3422 [2023-12-16 15:37:43,964 INFO L87 Difference]: Start difference. First operand 251 states and 358 transitions. Second operand has 51 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 42 states have internal predecessors, (114), 12 states have call successors, (34), 10 states have call predecessors, (34), 12 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-12-16 15:37:49,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:49,002 INFO L93 Difference]: Finished difference Result 570 states and 778 transitions. [2023-12-16 15:37:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-16 15:37:49,003 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 42 states have internal predecessors, (114), 12 states have call successors, (34), 10 states have call predecessors, (34), 12 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) Word has length 129 [2023-12-16 15:37:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:49,005 INFO L225 Difference]: With dead ends: 570 [2023-12-16 15:37:49,005 INFO L226 Difference]: Without dead ends: 415 [2023-12-16 15:37:49,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2193 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1171, Invalid=5635, Unknown=0, NotChecked=0, Total=6806 [2023-12-16 15:37:49,007 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 613 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 2983 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 3136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 2983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:49,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2447 Invalid, 3136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 2983 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-16 15:37:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-16 15:37:49,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 345. [2023-12-16 15:37:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 285 states have (on average 1.3263157894736841) internal successors, (378), 287 states have internal predecessors, (378), 46 states have call successors, (46), 13 states have call predecessors, (46), 13 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 15:37:49,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 470 transitions. [2023-12-16 15:37:49,034 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 470 transitions. Word has length 129 [2023-12-16 15:37:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:49,035 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 470 transitions. [2023-12-16 15:37:49,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 43 states have (on average 2.6511627906976742) internal successors, (114), 42 states have internal predecessors, (114), 12 states have call successors, (34), 10 states have call predecessors, (34), 12 states have return successors, (34), 12 states have call predecessors, (34), 12 states have call successors, (34) [2023-12-16 15:37:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 470 transitions. [2023-12-16 15:37:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 15:37:49,036 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:49,036 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:49,044 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 15:37:49,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:49,442 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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:49,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:49,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 914153338, now seen corresponding path program 1 times [2023-12-16 15:37:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:49,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852323852] [2023-12-16 15:37:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:49,443 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 15:37:49,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:49,444 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 15:37:49,444 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 15:37:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:49,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 15:37:49,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:49,789 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 15:37:49,905 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 23 treesize of output 11 [2023-12-16 15:37:49,978 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 23 treesize of output 11 [2023-12-16 15:37:50,104 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 15 treesize of output 7 [2023-12-16 15:37:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 93 proven. 289 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 15:37:50,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:50,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852323852] [2023-12-16 15:37:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852323852] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [54353853] [2023-12-16 15:37:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:50,190 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 15:37:50,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 15:37:50,191 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 15:37:50,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-16 15:37:50,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:50,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 15:37:50,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:50,735 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 15:37:50,904 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 23 treesize of output 11 [2023-12-16 15:37:51,025 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 23 treesize of output 11 [2023-12-16 15:37:51,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-12-16 15:37:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 93 proven. 289 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-12-16 15:37:51,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 15:37:51,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [54353853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 15:37:51,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 15:37:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-16 15:37:51,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575516571] [2023-12-16 15:37:51,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 15:37:51,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 15:37:51,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:51,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 15:37:51,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2023-12-16 15:37:51,299 INFO L87 Difference]: Start difference. First operand 345 states and 470 transitions. Second operand has 15 states, 13 states have (on average 7.0) internal successors, (91), 14 states have internal predecessors, (91), 8 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2023-12-16 15:37:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:51,835 INFO L93 Difference]: Finished difference Result 613 states and 831 transitions. [2023-12-16 15:37:51,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 15:37:51,836 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.0) internal successors, (91), 14 states have internal predecessors, (91), 8 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) Word has length 129 [2023-12-16 15:37:51,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:51,839 INFO L225 Difference]: With dead ends: 613 [2023-12-16 15:37:51,839 INFO L226 Difference]: Without dead ends: 380 [2023-12-16 15:37:51,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2023-12-16 15:37:51,841 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 224 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:51,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 385 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 15:37:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-12-16 15:37:51,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 322. [2023-12-16 15:37:51,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 261 states have (on average 1.2988505747126438) internal successors, (339), 263 states have internal predecessors, (339), 46 states have call successors, (46), 14 states have call predecessors, (46), 14 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 15:37:51,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 431 transitions. [2023-12-16 15:37:51,866 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 431 transitions. Word has length 129 [2023-12-16 15:37:51,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:51,867 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 431 transitions. [2023-12-16 15:37:51,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.0) internal successors, (91), 14 states have internal predecessors, (91), 8 states have call successors, (34), 6 states have call predecessors, (34), 8 states have return successors, (34), 6 states have call predecessors, (34), 8 states have call successors, (34) [2023-12-16 15:37:51,867 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 431 transitions. [2023-12-16 15:37:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 15:37:51,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:51,868 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:51,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-16 15:37:52,078 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 15:37:52,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 15:37:52,272 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:52,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:52,272 INFO L85 PathProgramCache]: Analyzing trace with hash 949942518, now seen corresponding path program 1 times [2023-12-16 15:37:52,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:52,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310515253] [2023-12-16 15:37:52,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:52,273 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 15:37:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:52,274 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 15:37:52,308 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 15:37:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:52,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 15:37:52,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:53,005 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 23 treesize of output 11 [2023-12-16 15:37:53,028 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 15 treesize of output 7 [2023-12-16 15:37:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-16 15:37:53,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 15:37:53,036 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 15:37:53,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310515253] [2023-12-16 15:37:53,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310515253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 15:37:53,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 15:37:53,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 15:37:53,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098677265] [2023-12-16 15:37:53,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 15:37:53,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 15:37:53,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 15:37:53,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 15:37:53,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 15:37:53,037 INFO L87 Difference]: Start difference. First operand 322 states and 431 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:53,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 15:37:53,332 INFO L93 Difference]: Finished difference Result 530 states and 701 transitions. [2023-12-16 15:37:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 15:37:53,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-16 15:37:53,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 15:37:53,334 INFO L225 Difference]: With dead ends: 530 [2023-12-16 15:37:53,334 INFO L226 Difference]: Without dead ends: 336 [2023-12-16 15:37:53,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-12-16 15:37:53,335 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 206 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 15:37:53,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 304 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 15:37:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-12-16 15:37:53,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 274. [2023-12-16 15:37:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 219 states have internal predecessors, (276), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 15:37:53,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 356 transitions. [2023-12-16 15:37:53,354 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 356 transitions. Word has length 129 [2023-12-16 15:37:53,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 15:37:53,354 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 356 transitions. [2023-12-16 15:37:53,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-16 15:37:53,354 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 356 transitions. [2023-12-16 15:37:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 15:37:53,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 15:37:53,355 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:37:53,363 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 15:37:53,563 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 15:37:53,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 15:37:53,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 15:37:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1472401365, now seen corresponding path program 1 times [2023-12-16 15:37:53,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 15:37:53,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459859087] [2023-12-16 15:37:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 15:37:53,565 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 15:37:53,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 15:37:53,566 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 15:37:53,576 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 15:37:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 15:37:54,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 71 conjunts are in the unsatisfiable core [2023-12-16 15:37:54,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 15:37:54,858 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 15:37:55,395 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 23 treesize of output 11 [2023-12-16 15:37:56,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2023-12-16 15:37:57,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2023-12-16 15:38:00,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2023-12-16 15:38:02,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 15:38:02,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 137 treesize of output 53 [2023-12-16 15:38:02,758 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 193 proven. 282 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-16 15:38:02,759 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 15:38:22,371 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 15:38:22,371 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 (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 15:38:22,426 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 15:38:22,433 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 15:38:22,627 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 15:38:22,627 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 17,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 56 known predicates. [2023-12-16 15:38:22,631 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 15:38:22,632 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 15:38:22,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:38:22 BoogieIcfgContainer [2023-12-16 15:38:22,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 15:38:22,634 INFO L158 Benchmark]: Toolchain (without parser) took 73911.24ms. Allocated memory was 250.6MB in the beginning and 626.0MB in the end (delta: 375.4MB). Free memory was 206.2MB in the beginning and 440.9MB in the end (delta: -234.7MB). Peak memory consumption was 142.2MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 129.9MB in the end (delta: 129.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.40ms. Allocated memory is still 250.6MB. Free memory was 206.2MB in the beginning and 190.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.11ms. Allocated memory is still 250.6MB. Free memory was 190.5MB in the beginning and 187.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: Boogie Preprocessor took 80.45ms. Allocated memory is still 250.6MB. Free memory was 187.3MB in the beginning and 183.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: RCFGBuilder took 692.15ms. Allocated memory is still 250.6MB. Free memory was 182.6MB in the beginning and 146.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,634 INFO L158 Benchmark]: TraceAbstraction took 72865.17ms. Allocated memory was 250.6MB in the beginning and 626.0MB in the end (delta: 375.4MB). Free memory was 146.4MB in the beginning and 440.9MB in the end (delta: -294.5MB). Peak memory consumption was 82.5MB. Max. memory is 8.0GB. [2023-12-16 15:38:22,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 129.9MB in the end (delta: 129.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.40ms. Allocated memory is still 250.6MB. Free memory was 206.2MB in the beginning and 190.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.11ms. Allocated memory is still 250.6MB. Free memory was 190.5MB in the beginning and 187.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.45ms. Allocated memory is still 250.6MB. Free memory was 187.3MB in the beginning and 183.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 692.15ms. Allocated memory is still 250.6MB. Free memory was 182.6MB in the beginning and 146.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 72865.17ms. Allocated memory was 250.6MB in the beginning and 626.0MB in the end (delta: 375.4MB). Free memory was 146.4MB in the beginning and 440.9MB in the end (delta: -294.5MB). Peak memory consumption was 82.5MB. 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 131 with TraceHistMax 17,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 56 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.8s, OverallIterations: 10, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2120 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2089 mSDsluCounter, 5751 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4617 mSDsCounter, 311 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4605 IncrementalHoareTripleChecker+Invalid, 4916 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 311 mSolverCounterUnsat, 1134 mSDtfsCounter, 4605 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2479 GetRequests, 2271 SyntacticMatches, 4 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=7, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 375 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 29.5s InterpolantComputationTime, 1791 NumberOfCodeBlocks, 1791 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2029 ConstructedInterpolants, 4 QuantifiedInterpolants, 33020 SizeOfPredicates, 155 NumberOfNonLiveVariables, 3983 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 5752/8704 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