/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/array-industry-pattern/array_shadowinit.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 09:33:36,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 09:33:36,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 09:33:37,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 09:33:37,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 09:33:37,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 09:33:37,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 09:33:37,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 09:33:37,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 09:33:37,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 09:33:37,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 09:33:37,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 09:33:37,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 09:33:37,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 09:33:37,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 09:33:37,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 09:33:37,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 09:33:37,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 09:33:37,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 09:33:37,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 09:33:37,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 09:33:37,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 09:33:37,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 09:33:37,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 09:33:37,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 09:33:37,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 09:33:37,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 09:33:37,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 09:33:37,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 09:33:37,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 09:33:37,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 09:33:37,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 09:33:37,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 09:33:37,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 09:33:37,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 09:33:37,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 09:33:37,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 09:33:37,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 09:33:37,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:33:37,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 09:33:37,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 09:33:37,140 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 09:33:37,140 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 09:33:37,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 09:33:37,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 09:33:37,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 09:33:37,141 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 09:33:37,141 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 09:33:37,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 09:33:37,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 09:33:37,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 09:33:37,388 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 09:33:37,390 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 09:33:37,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_shadowinit.i [2022-01-10 09:33:37,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0429333a3/e83826bae3664e339b850d9c78645332/FLAGd4abf6da6 [2022-01-10 09:33:37,869 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 09:33:37,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_shadowinit.i [2022-01-10 09:33:37,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0429333a3/e83826bae3664e339b850d9c78645332/FLAGd4abf6da6 [2022-01-10 09:33:37,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0429333a3/e83826bae3664e339b850d9c78645332 [2022-01-10 09:33:37,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 09:33:37,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 09:33:37,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 09:33:37,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 09:33:37,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 09:33:37,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:33:37" (1/1) ... [2022-01-10 09:33:37,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f62221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:37, skipping insertion in model container [2022-01-10 09:33:37,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 09:33:37" (1/1) ... [2022-01-10 09:33:37,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 09:33:37,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 09:33:38,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_shadowinit.i[809,822] [2022-01-10 09:33:38,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:33:38,083 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 09:33:38,104 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_shadowinit.i[809,822] [2022-01-10 09:33:38,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 09:33:38,131 INFO L208 MainTranslator]: Completed translation [2022-01-10 09:33:38,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38 WrapperNode [2022-01-10 09:33:38,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 09:33:38,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 09:33:38,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 09:33:38,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 09:33:38,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,147 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,162 INFO L137 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2022-01-10 09:33:38,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 09:33:38,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 09:33:38,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 09:33:38,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 09:33:38,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 09:33:38,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 09:33:38,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 09:33:38,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 09:33:38,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,202 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 09:33:38,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:33:38,222 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 09:33:38,223 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 09:33:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 09:33:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 09:33:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 09:33:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 09:33:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 09:33:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 09:33:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 09:33:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 09:33:38,315 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 09:33:38,316 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 09:33:38,478 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 09:33:38,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 09:33:38,483 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 09:33:38,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:33:38 BoogieIcfgContainer [2022-01-10 09:33:38,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 09:33:38,485 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 09:33:38,485 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 09:33:38,486 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 09:33:38,500 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:33:38" (1/1) ... [2022-01-10 09:33:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:33:38 BasicIcfg [2022-01-10 09:33:38,616 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 09:33:38,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 09:33:38,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 09:33:38,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 09:33:38,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 09:33:37" (1/4) ... [2022-01-10 09:33:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c606d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:33:38, skipping insertion in model container [2022-01-10 09:33:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 09:33:38" (2/4) ... [2022-01-10 09:33:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c606d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 09:33:38, skipping insertion in model container [2022-01-10 09:33:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 09:33:38" (3/4) ... [2022-01-10 09:33:38,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c606d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 09:33:38, skipping insertion in model container [2022-01-10 09:33:38,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 09:33:38" (4/4) ... [2022-01-10 09:33:38,622 INFO L111 eAbstractionObserver]: Analyzing ICFG array_shadowinit.iTransformedIcfg [2022-01-10 09:33:38,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 09:33:38,629 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 09:33:38,684 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 09:33:38,692 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 09:33:38,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 09:33:38,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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 09:33:38,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 09:33:38,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:33:38,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:33:38,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:33:38,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:33:38,716 INFO L85 PathProgramCache]: Analyzing trace with hash 627209194, now seen corresponding path program 1 times [2022-01-10 09:33:38,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:33:38,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450938949] [2022-01-10 09:33:38,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:33:38,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:33:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:33:38,919 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 09:33:38,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:33:38,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450938949] [2022-01-10 09:33:38,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450938949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:33:38,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:33:38,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 09:33:38,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404441408] [2022-01-10 09:33:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:33:38,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 09:33:38,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:33:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 09:33:38,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:33:38,956 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 09:33:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:33:38,968 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2022-01-10 09:33:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 09:33:38,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-01-10 09:33:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:33:38,979 INFO L225 Difference]: With dead ends: 26 [2022-01-10 09:33:38,979 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 09:33:38,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 09:33:38,987 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:33:38,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:33:39,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 09:33:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 09:33:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 09:33:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-01-10 09:33:39,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2022-01-10 09:33:39,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:33:39,021 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-01-10 09:33:39,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 09:33:39,023 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-01-10 09:33:39,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 09:33:39,024 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:33:39,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:33:39,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 09:33:39,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:33:39,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:33:39,027 INFO L85 PathProgramCache]: Analyzing trace with hash 628132715, now seen corresponding path program 1 times [2022-01-10 09:33:39,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:33:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917476676] [2022-01-10 09:33:39,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:33:39,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:33:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:33:39,208 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 09:33:39,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:33:39,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917476676] [2022-01-10 09:33:39,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917476676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 09:33:39,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 09:33:39,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 09:33:39,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177390605] [2022-01-10 09:33:39,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 09:33:39,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 09:33:39,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:33:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 09:33:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 09:33:39,211 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 09:33:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:33:39,263 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-01-10 09:33:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 09:33:39,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-01-10 09:33:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:33:39,264 INFO L225 Difference]: With dead ends: 17 [2022-01-10 09:33:39,264 INFO L226 Difference]: Without dead ends: 11 [2022-01-10 09:33:39,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 09:33:39,265 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 09:33:39,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 09:33:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-01-10 09:33:39,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-01-10 09:33:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 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 09:33:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-01-10 09:33:39,270 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-01-10 09:33:39,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:33:39,270 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-01-10 09:33:39,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 09:33:39,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-01-10 09:33:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 09:33:39,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:33:39,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:33:39,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 09:33:39,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:33:39,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:33:39,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1976985770, now seen corresponding path program 1 times [2022-01-10 09:33:39,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:33:39,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074955387] [2022-01-10 09:33:39,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:33:39,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:33:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:33:39,644 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 09:33:39,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:33:39,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074955387] [2022-01-10 09:33:39,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074955387] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 09:33:39,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869584676] [2022-01-10 09:33:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:33:39,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:33:39,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:33:39,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:33:39,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 09:33:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:33:39,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 09:33:39,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:33:39,956 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 27 treesize of output 23 [2022-01-10 09:33:40,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 09:33:40,266 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 09:33:40,267 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 80 treesize of output 23 [2022-01-10 09:33:40,319 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 09:33:40,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:33:40,514 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 42 treesize of output 40 [2022-01-10 09:33:40,527 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 98 treesize of output 80 [2022-01-10 09:34:25,106 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 09:34:25,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869584676] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:34:25,107 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 09:34:25,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-01-10 09:34:25,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823676396] [2022-01-10 09:34:25,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 09:34:25,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 09:34:25,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:34:25,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 09:34:25,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-10 09:34:25,109 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 09:34:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:34:25,192 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-01-10 09:34:25,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 09:34:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 9 [2022-01-10 09:34:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:34:25,193 INFO L225 Difference]: With dead ends: 18 [2022-01-10 09:34:25,194 INFO L226 Difference]: Without dead ends: 16 [2022-01-10 09:34:25,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-01-10 09:34:25,195 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 09:34:25,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2022-01-10 09:34:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-10 09:34:25,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-01-10 09:34:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 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 09:34:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-01-10 09:34:25,200 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2022-01-10 09:34:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:34:25,200 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-01-10 09:34:25,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 09:34:25,200 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-01-10 09:34:25,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-01-10 09:34:25,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:34:25,201 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:34:25,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 09:34:25,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:34:25,405 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:34:25,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:34:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1131280181, now seen corresponding path program 2 times [2022-01-10 09:34:25,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:34:25,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387345019] [2022-01-10 09:34:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:34:25,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:34:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:34:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:34:25,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:34:25,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387345019] [2022-01-10 09:34:25,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387345019] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 09:34:25,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496787051] [2022-01-10 09:34:25,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 09:34:25,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:34:25,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:34:25,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:34:25,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-10 09:34:26,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 09:34:26,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 09:34:26,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-10 09:34:26,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:34:26,072 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 41 treesize of output 37 [2022-01-10 09:34:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 09:34:26,162 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 65 treesize of output 64 [2022-01-10 09:34:26,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 09:34:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 09:34:26,595 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 09:34:26,596 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 117 treesize of output 31 [2022-01-10 09:34:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:34:26,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 09:34:27,819 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 73 treesize of output 71 [2022-01-10 09:34:27,823 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 642 treesize of output 606 [2022-01-10 09:34:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:34:32,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496787051] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 09:34:32,441 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 09:34:32,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-01-10 09:34:32,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486630146] [2022-01-10 09:34:32,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 09:34:32,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 09:34:32,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 09:34:32,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 09:34:32,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=142, Unknown=1, NotChecked=0, Total=182 [2022-01-10 09:34:32,446 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 09:34:32,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 09:34:32,575 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-01-10 09:34:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 09:34:32,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 10 [2022-01-10 09:34:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 09:34:32,576 INFO L225 Difference]: With dead ends: 22 [2022-01-10 09:34:32,576 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 09:34:32,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=48, Invalid=161, Unknown=1, NotChecked=0, Total=210 [2022-01-10 09:34:32,577 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 09:34:32,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 59 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 27 Unchecked, 0.1s Time] [2022-01-10 09:34:32,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 09:34:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2022-01-10 09:34:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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 09:34:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-01-10 09:34:32,582 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2022-01-10 09:34:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 09:34:32,582 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-01-10 09:34:32,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 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 09:34:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-01-10 09:34:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 09:34:32,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 09:34:32,583 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 09:34:32,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-10 09:34:32,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-10 09:34:32,788 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 09:34:32,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 09:34:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash -684210698, now seen corresponding path program 3 times [2022-01-10 09:34:32,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 09:34:32,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14198050] [2022-01-10 09:34:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 09:34:32,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 09:34:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 09:34:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 09:34:33,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 09:34:33,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14198050] [2022-01-10 09:34:33,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14198050] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 09:34:33,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791792742] [2022-01-10 09:34:33,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 09:34:33,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 09:34:33,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 09:34:33,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 09:34:33,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 09:34:33,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-10 09:34:33,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 09:34:33,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-10 09:34:33,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 09:34:33,717 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 41 treesize of output 37 [2022-01-10 09:34:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 09:34:33,814 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 103 treesize of output 102 [2022-01-10 09:34:34,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 09:34:34,474 INFO L353 Elim1Store]: treesize reduction 138, result has 49.8 percent of original size [2022-01-10 09:34:34,474 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 3 case distinctions, treesize of input 89 treesize of output 172