/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_LAZY.epf -i ../../../trunk/examples/svcomp/array-fpi/s52if.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:49:17,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:49:17,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:49:17,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 15:49:17,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:49:17,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:49:17,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:49:17,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:49:17,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:49:17,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:49:17,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:49:17,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:49:17,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:49:17,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:49:17,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:49:17,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:49:17,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 15:49:17,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:49:17,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:49:17,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:49:17,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 15:49:17,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:49:17,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:49:17,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:49:17,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:49:17,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:49:17,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:49:17,885 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:49:17,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:49:17,886 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:49:17,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:49:17,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:49:17,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:49:17,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:49:17,889 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:49:17,889 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:49:18,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:49:18,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:49:18,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:49:18,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:49:18,083 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:49:18,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s52if.c [2022-01-10 15:49:18,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46efa384/8963c5bf84de4dc081f96bcb9d95dfcd/FLAG7197df680 [2022-01-10 15:49:18,473 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:49:18,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/s52if.c [2022-01-10 15:49:18,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46efa384/8963c5bf84de4dc081f96bcb9d95dfcd/FLAG7197df680 [2022-01-10 15:49:18,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e46efa384/8963c5bf84de4dc081f96bcb9d95dfcd [2022-01-10 15:49:18,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:49:18,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:49:18,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:49:18,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:49:18,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:49:18,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5212cbd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18, skipping insertion in model container [2022-01-10 15:49:18,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:49:18,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:49:18,668 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-fpi/s52if.c[588,601] [2022-01-10 15:49:18,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:49:18,722 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:49:18,735 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-fpi/s52if.c[588,601] [2022-01-10 15:49:18,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:49:18,759 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:49:18,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18 WrapperNode [2022-01-10 15:49:18,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:49:18,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:49:18,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:49:18,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:49:18,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,793 INFO L137 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-01-10 15:49:18,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:49:18,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:49:18,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:49:18,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:49:18,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:49:18,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:49:18,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:49:18,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:49:18,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (1/1) ... [2022-01-10 15:49:18,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:49:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:49:18,880 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 15:49:18,907 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 15:49:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:49:18,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:49:18,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 15:49:18,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 15:49:19,000 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:49:19,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:49:19,219 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:49:19,224 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:49:19,224 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 15:49:19,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:49:19 BoogieIcfgContainer [2022-01-10 15:49:19,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:49:19,226 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:49:19,226 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:49:19,227 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:49:19,230 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:49:19" (1/1) ... [2022-01-10 15:49:19,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:49:19 BasicIcfg [2022-01-10 15:49:19,418 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:49:19,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:49:19,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:49:19,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:49:19,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:49:18" (1/4) ... [2022-01-10 15:49:19,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1609c290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:49:19, skipping insertion in model container [2022-01-10 15:49:19,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:49:18" (2/4) ... [2022-01-10 15:49:19,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1609c290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:49:19, skipping insertion in model container [2022-01-10 15:49:19,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:49:19" (3/4) ... [2022-01-10 15:49:19,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1609c290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:49:19, skipping insertion in model container [2022-01-10 15:49:19,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:49:19" (4/4) ... [2022-01-10 15:49:19,424 INFO L111 eAbstractionObserver]: Analyzing ICFG s52if.cTransformedIcfg [2022-01-10 15:49:19,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:49:19,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 15:49:19,465 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:49:19,471 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 15:49:19,471 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 15:49:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 15:49:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 15:49:19,487 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:49:19,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:49:19,488 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:49:19,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:49:19,497 INFO L85 PathProgramCache]: Analyzing trace with hash -100191935, now seen corresponding path program 1 times [2022-01-10 15:49:19,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:49:19,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029501620] [2022-01-10 15:49:19,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:49:19,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:49:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:49:19,703 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 15:49:19,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:49:19,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029501620] [2022-01-10 15:49:19,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029501620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:49:19,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:49:19,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 15:49:19,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549745733] [2022-01-10 15:49:19,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:49:19,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 15:49:19,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:49:19,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 15:49:19,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 15:49:19,747 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 states have internal predecessors, (33), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 15:49:19,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:49:19,763 INFO L93 Difference]: Finished difference Result 42 states and 60 transitions. [2022-01-10 15:49:19,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 15:49:19,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-01-10 15:49:19,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:49:19,771 INFO L225 Difference]: With dead ends: 42 [2022-01-10 15:49:19,771 INFO L226 Difference]: Without dead ends: 19 [2022-01-10 15:49:19,774 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 15:49:19,778 INFO L933 BasicCegarLoop]: 28 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, 28 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 15:49:19,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:49:19,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-01-10 15:49:19,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-01-10 15:49:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 15:49:19,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-01-10 15:49:19,810 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2022-01-10 15:49:19,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:49:19,811 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-01-10 15:49:19,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 15:49:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-01-10 15:49:19,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 15:49:19,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:49:19,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:49:19,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:49:19,814 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:49:19,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:49:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1474763837, now seen corresponding path program 1 times [2022-01-10 15:49:19,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:49:19,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206631882] [2022-01-10 15:49:19,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:49:19,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:49:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:49:20,066 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 15:49:20,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:49:20,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206631882] [2022-01-10 15:49:20,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206631882] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:49:20,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:49:20,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 15:49:20,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588629518] [2022-01-10 15:49:20,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:49:20,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 15:49:20,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:49:20,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 15:49:20,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:49:20,070 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 15:49:22,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-01-10 15:49:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:49:22,323 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-01-10 15:49:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 15:49:22,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-01-10 15:49:22,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:49:22,325 INFO L225 Difference]: With dead ends: 46 [2022-01-10 15:49:22,325 INFO L226 Difference]: Without dead ends: 34 [2022-01-10 15:49:22,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 15:49:22,327 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 30 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:49:22,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 15 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 15:49:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-01-10 15:49:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-01-10 15:49:22,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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 15:49:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-01-10 15:49:22,333 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 13 [2022-01-10 15:49:22,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:49:22,333 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-01-10 15:49:22,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 15:49:22,333 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-01-10 15:49:22,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-10 15:49:22,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:49:22,334 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:49:22,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 15:49:22,335 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:49:22,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:49:22,335 INFO L85 PathProgramCache]: Analyzing trace with hash 2135952032, now seen corresponding path program 1 times [2022-01-10 15:49:22,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:49:22,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362104286] [2022-01-10 15:49:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:49:22,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:49:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:49:24,301 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 15:49:24,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:49:24,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362104286] [2022-01-10 15:49:24,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362104286] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 15:49:24,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852351555] [2022-01-10 15:49:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:49:24,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 15:49:24,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:49:24,311 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 15:49:24,340 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 15:49:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:49:24,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-10 15:49:24,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 15:49:24,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:24,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 15:49:25,003 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 27 [2022-01-10 15:49:25,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:25,154 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 33 treesize of output 33 [2022-01-10 15:49:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:25,503 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 33 treesize of output 33 [2022-01-10 15:49:25,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:25,820 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 208 treesize of output 95 [2022-01-10 15:49:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:26,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 15:49:26,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 160 treesize of output 104 [2022-01-10 15:49:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 15:49:26,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 15:49:36,876 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse2 (* 6 c_~N~0Int))) (let ((.cse5 (div .cse2 4294967296))) (let ((.cse3 (div (+ (* .cse5 (- 4294967296)) .cse2) 2147483648))) (let ((.cse1 (let ((.cse6 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4))) (let ((.cse4 (let ((.cse7 (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.baseInt|)) (.cse9 (mod .cse6 18446744073709551616))) (let ((.cse8 (mod (let ((.cse10 (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ (mod (+ (* |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616)))) (+ (* 18446744069414584320 (mod (div .cse10 2147483648) 2)) .cse10 (select .cse7 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* (select .cse7 .cse9) 4294967296))) 18446744073709551616))) (store (store .cse7 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| (mod (div .cse8 1) 4294967296)) .cse9 (mod (div .cse8 4294967296) 4294967296)))))) (+ (select .cse4 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* .cse5 4294967296) (* (select .cse4 (+ (* (- 18446744073709551616) (div .cse6 18446744073709551616)) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4)) 4294967296) (* 36893488138829168640 (div .cse3 2)))))) (.cse0 (+ .cse2 (* 18446744069414584320 .cse3)))) (and (<= .cse0 .cse1) (<= .cse1 .cse0)))))) (not (= |c_ULTIMATE.start_ULTIMATE.start_main_#t~mem12#1Int| 6))) is different from true [2022-01-10 15:49:51,572 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| Int)) (let ((.cse0 (select (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt|) (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616)))) (or (not (= .cse0 6)) (let ((.cse3 (* 6 c_~N~0Int))) (let ((.cse5 (div .cse3 4294967296))) (let ((.cse4 (div (+ (* .cse5 (- 4294967296)) .cse3) 2147483648))) (let ((.cse2 (let ((.cse7 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4))) (let ((.cse6 (let ((.cse8 (select |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.baseInt|)) (.cse10 (mod .cse7 18446744073709551616))) (let ((.cse9 (mod (+ .cse0 (* 18446744069414584320 (mod (div .cse0 2147483648) 2)) (select .cse8 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* (select .cse8 .cse10) 4294967296)) 18446744073709551616))) (store (store .cse8 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| (mod (div .cse9 1) 4294967296)) .cse10 (mod (div .cse9 4294967296) 4294967296)))))) (+ (* .cse5 4294967296) (select .cse6 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* 4294967296 (select .cse6 (+ (* (- 18446744073709551616) (div .cse7 18446744073709551616)) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4))) (* 36893488138829168640 (div .cse4 2)))))) (.cse1 (+ .cse3 (* 18446744069414584320 .cse4)))) (and (<= .cse1 .cse2) (<= .cse2 .cse1))))))))) is different from true [2022-01-10 15:50:27,315 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_51 (Array Int Int)) (|ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| Int) (|ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt| Int)) (let ((.cse0 (select v_ArrVal_51 (mod (+ (mod (+ (* |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 4) (* 18446744056529682432 (mod (div |ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 2147483648) 2))) 18446744073709551616) |ULTIMATE.start_ULTIMATE.start_main_~a~0#1.offsetInt|) 18446744073709551616)))) (or (not (= .cse0 6)) (let ((.cse3 (* 6 c_~N~0Int))) (let ((.cse6 (div .cse3 4294967296))) (let ((.cse4 (div (+ (* .cse6 (- 4294967296)) .cse3) 2147483648))) (let ((.cse2 (let ((.cse7 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4))) (let ((.cse5 (let ((.cse10 (mod .cse7 18446744073709551616)) (.cse8 (select (store |c_#memory_intInt| |c_ULTIMATE.start_ULTIMATE.start_main_~a~0#1.baseInt| v_ArrVal_51) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.baseInt|))) (let ((.cse9 (mod (+ .cse0 (* (select .cse8 .cse10) 4294967296) (select .cse8 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* 18446744069414584320 (mod (div .cse0 2147483648) 2))) 18446744073709551616))) (store (store .cse8 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| (mod (div .cse9 1) 4294967296)) .cse10 (mod (div .cse9 4294967296) 4294967296)))))) (+ (select .cse5 |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt|) (* .cse6 4294967296) (* 36893488138829168640 (div .cse4 2)) (* (select .cse5 (+ (* (- 18446744073709551616) (div .cse7 18446744073709551616)) |c_ULTIMATE.start_ULTIMATE.start_main_~#sum~0#1.offsetInt| 4)) 4294967296))))) (.cse1 (+ .cse3 (* 18446744069414584320 .cse4)))) (and (<= .cse1 .cse2) (<= .cse2 .cse1))))))))) is different from false