/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-token-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:04:34,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:04:34,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:04:34,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 06:04:34,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:04:34,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:04:34,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:04:34,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:04:34,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:04:34,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:04:34,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:04:34,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:04:34,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:04:34,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:04:34,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:04:34,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:04:34,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 06:04:34,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:04:34,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:04:34,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:04:34,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:04:34,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:04:34,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:04:34,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:04:34,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:04:34,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:04:34,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:04:34,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:04:34,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:04:34,302 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:04:34,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:04:34,303 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:04:34,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:04:34,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:04:34,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:04:34,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:04:34,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:04:34,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:04:34,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:04:34,305 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:04:34,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:04:34,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:04:34,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:04:34,544 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:04:34,544 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:04:34,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-token-1.i [2022-01-10 06:04:34,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4890328d4/59de077e662449af9033d7ce4c8ad14d/FLAG409140969 [2022-01-10 06:04:35,037 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:04:35,037 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i [2022-01-10 06:04:35,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4890328d4/59de077e662449af9033d7ce4c8ad14d/FLAG409140969 [2022-01-10 06:04:35,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4890328d4/59de077e662449af9033d7ce4c8ad14d [2022-01-10 06:04:35,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:04:35,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:04:35,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:04:35,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:04:35,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:04:35,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78433cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35, skipping insertion in model container [2022-01-10 06:04:35,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:04:35,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:04:35,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22229,22242] [2022-01-10 06:04:35,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22398,22411] [2022-01-10 06:04:35,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22489,22502] [2022-01-10 06:04:35,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22571,22584] [2022-01-10 06:04:35,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22649,22662] [2022-01-10 06:04:35,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22795,22808] [2022-01-10 06:04:35,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:04:35,712 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:04:35,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22229,22242] [2022-01-10 06:04:35,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22398,22411] [2022-01-10 06:04:35,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22489,22502] [2022-01-10 06:04:35,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22571,22584] [2022-01-10 06:04:35,747 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22649,22662] [2022-01-10 06:04:35,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-token-1.i[22795,22808] [2022-01-10 06:04:35,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:04:35,769 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:04:35,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35 WrapperNode [2022-01-10 06:04:35,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:04:35,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:04:35,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:04:35,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:04:35,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,822 INFO L137 Inliner]: procedures = 122, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2022-01-10 06:04:35,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:04:35,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:04:35,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:04:35,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:04:35,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:04:35,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:04:35,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:04:35,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:04:35,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (1/1) ... [2022-01-10 06:04:35,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:04:35,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:04:35,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:04:35,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 06:04:35,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 06:04:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 06:04:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:04:35,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:04:35,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:04:36,055 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:04:36,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:04:36,408 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:04:36,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:04:36,413 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-01-10 06:04:36,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:04:36 BoogieIcfgContainer [2022-01-10 06:04:36,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:04:36,416 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:04:36,416 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:04:36,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:04:36,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:04:35" (1/3) ... [2022-01-10 06:04:36,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c33f552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:04:36, skipping insertion in model container [2022-01-10 06:04:36,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:04:35" (2/3) ... [2022-01-10 06:04:36,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c33f552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:04:36, skipping insertion in model container [2022-01-10 06:04:36,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:04:36" (3/3) ... [2022-01-10 06:04:36,424 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-1.i [2022-01-10 06:04:36,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:04:36,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 06:04:36,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:04:36,477 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:04:36,477 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 06:04:36,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 42 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:36,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-10 06:04:36,495 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:36,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-10 06:04:36,496 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:36,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:36,499 INFO L85 PathProgramCache]: Analyzing trace with hash 28699849, now seen corresponding path program 1 times [2022-01-10 06:04:36,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:36,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889134715] [2022-01-10 06:04:36,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:36,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:36,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:36,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:36,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:04:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:36,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-10 06:04:36,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:36,734 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:36,840 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 06:04:36,841 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-10 06:04:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:36,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:04:36,858 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:36,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889134715] [2022-01-10 06:04:36,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [889134715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:04:36,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:04:36,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:04:36,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905564719] [2022-01-10 06:04:36,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:04:36,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:04:36,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:36,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:04:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:04:36,899 INFO L87 Difference]: Start difference. First operand has 43 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 42 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:37,223 INFO L93 Difference]: Finished difference Result 82 states and 128 transitions. [2022-01-10 06:04:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:04:37,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-01-10 06:04:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:37,231 INFO L225 Difference]: With dead ends: 82 [2022-01-10 06:04:37,231 INFO L226 Difference]: Without dead ends: 36 [2022-01-10 06:04:37,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:04:37,236 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:37,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 87 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:04:37,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-10 06:04:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-01-10 06:04:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-01-10 06:04:37,262 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 5 [2022-01-10 06:04:37,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:37,262 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-01-10 06:04:37,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,262 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-01-10 06:04:37,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 06:04:37,263 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:37,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 06:04:37,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 06:04:37,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:37,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:37,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 889651804, now seen corresponding path program 1 times [2022-01-10 06:04:37,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:37,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817503870] [2022-01-10 06:04:37,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:37,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:37,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:37,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:37,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:04:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:37,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 06:04:37,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:37,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:04:37,662 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:37,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817503870] [2022-01-10 06:04:37,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817503870] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:04:37,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:04:37,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:04:37,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969545812] [2022-01-10 06:04:37,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:04:37,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 06:04:37,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 06:04:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 06:04:37,675 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:37,862 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-01-10 06:04:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 06:04:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 06:04:37,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:37,865 INFO L225 Difference]: With dead ends: 62 [2022-01-10 06:04:37,865 INFO L226 Difference]: Without dead ends: 60 [2022-01-10 06:04:37,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:04:37,866 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 71 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:37,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 47 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 06:04:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-01-10 06:04:37,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 34. [2022-01-10 06:04:37,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-01-10 06:04:37,873 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 6 [2022-01-10 06:04:37,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:37,873 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-01-10 06:04:37,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:37,873 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-01-10 06:04:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 06:04:37,874 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:37,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:37,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:04:38,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:38,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:38,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1061836619, now seen corresponding path program 1 times [2022-01-10 06:04:38,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:38,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605387900] [2022-01-10 06:04:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:38,089 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:38,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:38,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:38,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:04:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:38,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:04:38,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:38,314 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 7 [2022-01-10 06:04:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:38,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:04:38,329 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:38,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605387900] [2022-01-10 06:04:38,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605387900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:04:38,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:04:38,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:04:38,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171076609] [2022-01-10 06:04:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:04:38,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:04:38,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:38,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:04:38,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:04:38,333 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:38,692 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-01-10 06:04:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:04:38,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 06:04:38,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:38,694 INFO L225 Difference]: With dead ends: 34 [2022-01-10 06:04:38,695 INFO L226 Difference]: Without dead ends: 32 [2022-01-10 06:04:38,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:04:38,696 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:38,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 06:04:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-10 06:04:38,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-01-10 06:04:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-01-10 06:04:38,700 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 11 [2022-01-10 06:04:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:38,700 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-01-10 06:04:38,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-01-10 06:04:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 06:04:38,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:38,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:38,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 06:04:38,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:38,902 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1061798883, now seen corresponding path program 1 times [2022-01-10 06:04:38,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:38,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10936093] [2022-01-10 06:04:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:38,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:38,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:38,904 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:38,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:04:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:39,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-10 06:04:39,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:39,217 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:39,335 INFO L353 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-01-10 06:04:39,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 54 [2022-01-10 06:04:39,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:39,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:39,353 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 18 [2022-01-10 06:04:39,367 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 06:04:39,367 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-10 06:04:39,409 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 7 [2022-01-10 06:04:39,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:39,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:04:39,424 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:39,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10936093] [2022-01-10 06:04:39,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10936093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:04:39,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:04:39,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 06:04:39,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326317237] [2022-01-10 06:04:39,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:04:39,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:04:39,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:04:39,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:04:39,426 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:40,130 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-01-10 06:04:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:04:40,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 06:04:40,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:40,132 INFO L225 Difference]: With dead ends: 66 [2022-01-10 06:04:40,132 INFO L226 Difference]: Without dead ends: 42 [2022-01-10 06:04:40,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:04:40,133 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:40,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 06:04:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-01-10 06:04:40,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-01-10 06:04:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:40,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-01-10 06:04:40,139 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 11 [2022-01-10 06:04:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:40,139 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-01-10 06:04:40,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-01-10 06:04:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 06:04:40,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:40,140 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:40,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:04:40,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:40,354 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:40,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1843657908, now seen corresponding path program 1 times [2022-01-10 06:04:40,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:40,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208097348] [2022-01-10 06:04:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:40,355 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:40,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:40,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:04:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:40,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-10 06:04:40,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:40,739 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-01-10 06:04:40,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:40,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:40,808 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-01-10 06:04:40,817 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-01-10 06:04:40,825 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 39 [2022-01-10 06:04:40,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:40,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:40,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 06:04:40,836 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-01-10 06:04:40,852 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-01-10 06:04:40,881 INFO L353 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-01-10 06:04:40,881 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2022-01-10 06:04:41,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:41,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:41,092 INFO L353 Elim1Store]: treesize reduction 215, result has 4.9 percent of original size [2022-01-10 06:04:41,093 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 51 [2022-01-10 06:04:41,118 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-01-10 06:04:41,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 20 [2022-01-10 06:04:41,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-10 06:04:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:41,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:04:41,395 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_679 (_ BitVec 64))) (or (and (forall ((v_ArrVal_691 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_688 (Array (_ BitVec 64) (_ BitVec 32)))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_688) v_ArrVal_679 v_ArrVal_691) |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv16 64))) (_ bv0 32))) (or (forall ((v_ArrVal_685 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_691 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_688 (Array (_ BitVec 64) (_ BitVec 32)))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_688) v_ArrVal_679 v_ArrVal_685) |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_691) |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv16 64))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_679)))) (not (= (select |c_#valid| v_ArrVal_679) (_ bv0 1))))) is different from false [2022-01-10 06:04:41,651 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:41,652 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 98 [2022-01-10 06:04:41,659 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 182 treesize of output 162 [2022-01-10 06:04:41,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 162 treesize of output 154 [2022-01-10 06:04:44,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-10 06:04:44,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:44,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208097348] [2022-01-10 06:04:44,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208097348] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:04:44,146 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:04:44,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2022-01-10 06:04:44,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720320042] [2022-01-10 06:04:44,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:04:44,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 06:04:44,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 06:04:44,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=39, Unknown=1, NotChecked=12, Total=72 [2022-01-10 06:04:44,148 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:44,547 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_main_~x~0#1.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (= (_ bv0 64) |c_ULTIMATE.start_main_~head~0#1.offset|) (= (select |c_#valid| |c_ULTIMATE.start_main_~x~0#1.base|) (_ bv1 1)) (= (_ bv0 1) (bvadd (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|) (_ bv1 1))) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv16 64))) (_ bv0 32)) (forall ((v_ArrVal_679 (_ BitVec 64))) (or (and (forall ((v_ArrVal_691 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_688 (Array (_ BitVec 64) (_ BitVec 32)))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_688) v_ArrVal_679 v_ArrVal_691) |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv16 64))) (_ bv0 32))) (or (forall ((v_ArrVal_685 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_691 (Array (_ BitVec 64) (_ BitVec 32))) (v_ArrVal_688 (Array (_ BitVec 64) (_ BitVec 32)))) (= (select (select (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_688) v_ArrVal_679 v_ArrVal_685) |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_691) |c_ULTIMATE.start_main_~head~0#1.base|) (bvadd |c_ULTIMATE.start_main_~head~0#1.offset| (_ bv16 64))) (_ bv0 32))) (not (= |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_679)))) (not (= (select |c_#valid| v_ArrVal_679) (_ bv0 1)))))) is different from false [2022-01-10 06:04:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:45,780 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-01-10 06:04:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 06:04:45,781 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-10 06:04:45,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:45,782 INFO L225 Difference]: With dead ends: 49 [2022-01-10 06:04:45,782 INFO L226 Difference]: Without dead ends: 47 [2022-01-10 06:04:45,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=49, Unknown=3, NotChecked=30, Total=110 [2022-01-10 06:04:45,783 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:45,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 150 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 44 Unchecked, 1.5s Time] [2022-01-10 06:04:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-01-10 06:04:45,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2022-01-10 06:04:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-01-10 06:04:45,788 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 14 [2022-01-10 06:04:45,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:45,788 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-01-10 06:04:45,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:45,788 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-01-10 06:04:45,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-01-10 06:04:45,789 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:45,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:45,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:04:45,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:45,990 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:45,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1359067491, now seen corresponding path program 1 times [2022-01-10 06:04:45,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:45,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448363724] [2022-01-10 06:04:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:45,991 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:45,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:45,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:45,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:04:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:46,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 74 conjunts are in the unsatisfiable core [2022-01-10 06:04:46,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:46,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:46,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:46,350 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-01-10 06:04:46,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:46,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-01-10 06:04:46,377 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-10 06:04:46,377 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 46 [2022-01-10 06:04:46,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:46,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 20 [2022-01-10 06:04:46,409 INFO L353 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2022-01-10 06:04:46,409 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 30 [2022-01-10 06:04:46,414 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-01-10 06:04:46,426 INFO L353 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-01-10 06:04:46,427 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-01-10 06:04:46,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-01-10 06:04:46,561 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-10 06:04:46,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-10 06:04:46,586 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 [2022-01-10 06:04:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:46,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:04:46,599 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:46,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448363724] [2022-01-10 06:04:46,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448363724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:04:46,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:04:46,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 06:04:46,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154252969] [2022-01-10 06:04:46,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:04:46,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 06:04:46,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 06:04:46,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 06:04:46,601 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:47,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:47,361 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-01-10 06:04:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 06:04:47,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-01-10 06:04:47,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:47,362 INFO L225 Difference]: With dead ends: 52 [2022-01-10 06:04:47,362 INFO L226 Difference]: Without dead ends: 50 [2022-01-10 06:04:47,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:04:47,363 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:47,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 102 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 06:04:47,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-10 06:04:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2022-01-10 06:04:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-01-10 06:04:47,369 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 15 [2022-01-10 06:04:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:47,369 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-01-10 06:04:47,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-01-10 06:04:47,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 06:04:47,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:47,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:47,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-01-10 06:04:47,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:47,579 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:47,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:47,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1751391308, now seen corresponding path program 1 times [2022-01-10 06:04:47,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:47,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605506426] [2022-01-10 06:04:47,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:47,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:47,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:47,581 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:47,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 06:04:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:47,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 82 conjunts are in the unsatisfiable core [2022-01-10 06:04:47,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:47,990 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:47,995 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-01-10 06:04:48,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,035 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-01-10 06:04:48,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 06:04:48,052 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-01-10 06:04:48,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,076 INFO L353 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-01-10 06:04:48,076 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2022-01-10 06:04:48,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,681 INFO L353 Elim1Store]: treesize reduction 978, result has 3.1 percent of original size [2022-01-10 06:04:48,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 530 treesize of output 446 [2022-01-10 06:04:48,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,723 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 29 [2022-01-10 06:04:48,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,734 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2022-01-10 06:04:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:48,751 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 06:04:48,752 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 16 [2022-01-10 06:04:48,771 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 [2022-01-10 06:04:48,846 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-10 06:04:48,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 14 [2022-01-10 06:04:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:48,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:04:49,029 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:49,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 65 [2022-01-10 06:04:49,051 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 4 [2022-01-10 06:04:49,166 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:49,166 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-01-10 06:04:49,355 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:49,355 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-01-10 06:04:49,466 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:49,467 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-01-10 06:04:49,574 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:04:49,575 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-01-10 06:04:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:04:51,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:04:51,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605506426] [2022-01-10 06:04:51,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605506426] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 06:04:51,260 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 06:04:51,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-01-10 06:04:51,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402238587] [2022-01-10 06:04:51,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 06:04:51,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 06:04:51,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:04:51,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 06:04:51,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2022-01-10 06:04:51,261 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:57,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:04:57,248 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-01-10 06:04:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 06:04:57,249 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-01-10 06:04:57,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:04:57,249 INFO L225 Difference]: With dead ends: 84 [2022-01-10 06:04:57,249 INFO L226 Difference]: Without dead ends: 68 [2022-01-10 06:04:57,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=46, Invalid=132, Unknown=4, NotChecked=0, Total=182 [2022-01-10 06:04:57,250 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 06:04:57,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 186 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 75 Unchecked, 1.7s Time] [2022-01-10 06:04:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-10 06:04:57,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2022-01-10 06:04:57,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-01-10 06:04:57,259 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 18 [2022-01-10 06:04:57,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:04:57,259 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-01-10 06:04:57,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:04:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-01-10 06:04:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 06:04:57,260 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:04:57,260 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:04:57,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 06:04:57,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:04:57,463 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 06:04:57,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:04:57,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1454377661, now seen corresponding path program 1 times [2022-01-10 06:04:57,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:04:57,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515712455] [2022-01-10 06:04:57,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:04:57,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:04:57,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:04:57,465 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:04:57,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 06:04:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:04:57,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 117 conjunts are in the unsatisfiable core [2022-01-10 06:04:57,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:04:57,878 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-01-10 06:04:57,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:57,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 34 treesize of output 24 [2022-01-10 06:04:57,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:57,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-01-10 06:04:57,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:57,948 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2022-01-10 06:04:57,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:57,957 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-10 06:04:57,963 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3 [2022-01-10 06:04:57,988 INFO L353 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-01-10 06:04:57,988 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 24 [2022-01-10 06:04:58,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:58,830 INFO L353 Elim1Store]: treesize reduction 199, result has 23.8 percent of original size [2022-01-10 06:04:58,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 1281 treesize of output 1087 [2022-01-10 06:04:58,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 916 treesize of output 635 [2022-01-10 06:04:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:58,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:58,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:58,887 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 06:04:59,123 INFO L353 Elim1Store]: treesize reduction 89, result has 51.1 percent of original size [2022-01-10 06:04:59,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 471 treesize of output 554 [2022-01-10 06:04:59,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 383 treesize of output 388 [2022-01-10 06:04:59,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:04:59,832 INFO L353 Elim1Store]: treesize reduction 754, result has 41.2 percent of original size [2022-01-10 06:04:59,832 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 842 treesize of output 1186 [2022-01-10 06:04:59,891 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 707 treesize of output 659 [2022-01-10 06:04:59,916 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 689 treesize of output 641 [2022-01-10 06:04:59,949 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 54 treesize of output 59 [2022-01-10 06:04:59,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 493 treesize of output 454 [2022-01-10 06:05:00,021 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2022-01-10 06:05:00,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:00,074 INFO L353 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-01-10 06:05:00,074 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 24 [2022-01-10 06:05:00,198 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 50 [2022-01-10 06:05:00,313 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-10 06:05:00,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:00,458 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:00,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 87 [2022-01-10 06:05:00,605 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 27 [2022-01-10 06:05:00,866 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:00,867 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 75 [2022-01-10 06:05:01,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-10 06:05:01,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:01,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 24 [2022-01-10 06:05:01,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:01,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:01,318 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 28 [2022-01-10 06:05:01,356 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-10 06:05:01,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 28 [2022-01-10 06:05:01,552 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-10 06:05:01,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:01,659 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 57 treesize of output 33 [2022-01-10 06:05:01,702 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-01-10 06:05:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:01,920 INFO L353 Elim1Store]: treesize reduction 32, result has 72.6 percent of original size [2022-01-10 06:05:01,920 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 197 treesize of output 227 [2022-01-10 06:05:03,012 INFO L353 Elim1Store]: treesize reduction 12, result has 83.1 percent of original size [2022-01-10 06:05:03,012 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 192 treesize of output 198 [2022-01-10 06:05:04,257 INFO L353 Elim1Store]: treesize reduction 30, result has 57.7 percent of original size [2022-01-10 06:05:04,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 192 treesize of output 180 [2022-01-10 06:05:04,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:04,986 INFO L353 Elim1Store]: treesize reduction 32, result has 72.6 percent of original size [2022-01-10 06:05:04,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 181 treesize of output 213 [2022-01-10 06:05:06,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:06,947 INFO L353 Elim1Store]: treesize reduction 32, result has 72.6 percent of original size [2022-01-10 06:05:06,947 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 136 treesize of output 196 [2022-01-10 06:05:07,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2022-01-10 06:05:07,282 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-01-10 06:05:07,925 INFO L353 Elim1Store]: treesize reduction 52, result has 38.8 percent of original size [2022-01-10 06:05:07,926 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 92 [2022-01-10 06:05:08,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:08,028 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-10 06:05:08,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 18 [2022-01-10 06:05:08,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 15 [2022-01-10 06:05:08,130 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-01-10 06:05:08,130 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 20 [2022-01-10 06:05:08,143 INFO L353 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-01-10 06:05:08,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 85 [2022-01-10 06:05:08,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 06:05:08,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-01-10 06:05:08,398 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 06:05:08,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 21 [2022-01-10 06:05:08,456 INFO L353 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-01-10 06:05:08,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 25 [2022-01-10 06:05:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:05:08,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 06:05:09,170 INFO L353 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2022-01-10 06:05:09,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 322 treesize of output 288 [2022-01-10 06:05:09,690 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:09,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1419 treesize of output 1545 [2022-01-10 06:05:09,750 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:09,750 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1306 treesize of output 1228 [2022-01-10 06:05:09,817 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:09,818 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1409 treesize of output 1223 [2022-01-10 06:05:09,910 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 06:05:09,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1370 treesize of output 1264 [2022-01-10 06:05:42,304 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 4