/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_NONE.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1-ll.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 20:27:24,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 20:27:24,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 20:27:24,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 20:27:24,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 20:27:24,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 20:27:24,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 20:27:24,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 20:27:24,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 20:27:24,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 20:27:24,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 20:27:24,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 20:27:24,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 20:27:24,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 20:27:24,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 20:27:24,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 20:27:24,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 20:27:24,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 20:27:24,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 20:27:24,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 20:27:24,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 20:27:24,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 20:27:24,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 20:27:24,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 20:27:24,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 20:27:24,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 20:27:24,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 20:27:24,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 20:27:24,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 20:27:24,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 20:27:24,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 20:27:24,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 20:27:24,489 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 20:27:24,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 20:27:24,490 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 20:27:24,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 20:27:24,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:27:24,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 20:27:24,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 20:27:24,493 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 20:27:24,493 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 20:27:24,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 20:27:24,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 20:27:24,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 20:27:24,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 20:27:24,713 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 20:27:24,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1-ll.c [2022-01-10 20:27:24,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b0d337a7/f25a719dfab54646b37fe65b843b7779/FLAGa4543726f [2022-01-10 20:27:25,120 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 20:27:25,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-ll.c [2022-01-10 20:27:25,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b0d337a7/f25a719dfab54646b37fe65b843b7779/FLAGa4543726f [2022-01-10 20:27:25,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b0d337a7/f25a719dfab54646b37fe65b843b7779 [2022-01-10 20:27:25,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 20:27:25,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 20:27:25,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 20:27:25,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 20:27:25,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 20:27:25,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6217c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25, skipping insertion in model container [2022-01-10 20:27:25,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 20:27:25,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 20:27:25,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-ll.c[546,559] [2022-01-10 20:27:25,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:27:25,306 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 20:27:25,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo1-ll.c[546,559] [2022-01-10 20:27:25,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 20:27:25,360 INFO L208 MainTranslator]: Completed translation [2022-01-10 20:27:25,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25 WrapperNode [2022-01-10 20:27:25,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 20:27:25,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 20:27:25,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 20:27:25,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 20:27:25,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,399 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 54 [2022-01-10 20:27:25,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 20:27:25,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 20:27:25,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 20:27:25,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 20:27:25,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 20:27:25,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 20:27:25,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 20:27:25,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 20:27:25,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 20:27:25,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:25,468 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 20:27:25,492 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 20:27:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 20:27:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 20:27:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 20:27:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 20:27:25,561 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 20:27:25,562 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 20:27:25,835 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 20:27:25,840 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 20:27:25,841 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 20:27:25,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:25 BoogieIcfgContainer [2022-01-10 20:27:25,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 20:27:25,843 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 20:27:25,843 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 20:27:25,848 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 20:27:25,850 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:25" (1/1) ... [2022-01-10 20:27:25,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:27:25 BasicIcfg [2022-01-10 20:27:25,940 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 20:27:25,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 20:27:25,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 20:27:25,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 20:27:25,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:27:25" (1/4) ... [2022-01-10 20:27:25,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee1ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:27:25, skipping insertion in model container [2022-01-10 20:27:25,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:27:25" (2/4) ... [2022-01-10 20:27:25,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee1ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:27:25, skipping insertion in model container [2022-01-10 20:27:25,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:27:25" (3/4) ... [2022-01-10 20:27:25,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ee1ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:27:25, skipping insertion in model container [2022-01-10 20:27:25,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:27:25" (4/4) ... [2022-01-10 20:27:25,946 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-ll.cTransformedIcfg [2022-01-10 20:27:25,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 20:27:25,950 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 20:27:25,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 20:27:25,988 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 20:27:25,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 20:27:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 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 20:27:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:27:26,004 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:27:26,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:27:26,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:27:26,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:27:26,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1247337372, now seen corresponding path program 1 times [2022-01-10 20:27:26,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:27:26,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179309105] [2022-01-10 20:27:26,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:26,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:27:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:27:26,223 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 20:27:26,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:27:26,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179309105] [2022-01-10 20:27:26,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179309105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:27:26,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:27:26,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 20:27:26,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418614960] [2022-01-10 20:27:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:27:26,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 20:27:26,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:27:26,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 20:27:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 20:27:26,263 INFO L87 Difference]: Start difference. First operand has 20 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 19 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 20:27:26,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:27:26,284 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-01-10 20:27:26,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 20:27:26,286 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 20:27:26,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:27:26,292 INFO L225 Difference]: With dead ends: 37 [2022-01-10 20:27:26,292 INFO L226 Difference]: Without dead ends: 16 [2022-01-10 20:27:26,297 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 20:27:26,302 INFO L933 BasicCegarLoop]: 20 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, 20 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 20:27:26,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 20:27:26,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-01-10 20:27:26,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-01-10 20:27:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 20:27:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-01-10 20:27:26,339 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-01-10 20:27:26,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:27:26,339 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-01-10 20:27:26,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 20:27:26,340 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-01-10 20:27:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 20:27:26,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:27:26,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:27:26,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 20:27:26,341 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:27:26,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:27:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash -358910170, now seen corresponding path program 1 times [2022-01-10 20:27:26,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:27:26,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696522739] [2022-01-10 20:27:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:26,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:27:26,411 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:27:26,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958684042] [2022-01-10 20:27:26,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:26,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:27:26,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:26,415 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 20:27:26,416 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 20:27:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:27:26,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 20:27:26,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:27:26,987 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 20:27:26,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 20:27:26,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 20:27:26,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696522739] [2022-01-10 20:27:26,988 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 20:27:26,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958684042] [2022-01-10 20:27:26,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958684042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 20:27:26,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 20:27:26,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 20:27:26,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477990076] [2022-01-10 20:27:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 20:27:26,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 20:27:26,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 20:27:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 20:27:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 20:27:26,991 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:27:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 20:27:27,328 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2022-01-10 20:27:27,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 20:27:27,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:27:27,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 20:27:27,329 INFO L225 Difference]: With dead ends: 26 [2022-01-10 20:27:27,330 INFO L226 Difference]: Without dead ends: 20 [2022-01-10 20:27:27,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-01-10 20:27:27,331 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 34 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 20:27:27,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 20:27:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-10 20:27:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-10 20:27:27,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 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 20:27:27,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-01-10 20:27:27,336 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 9 [2022-01-10 20:27:27,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 20:27:27,337 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-01-10 20:27:27,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 20:27:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-01-10 20:27:27,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-01-10 20:27:27,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 20:27:27,338 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 20:27:27,343 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 20:27:27,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:27:27,543 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 20:27:27,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 20:27:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1239988642, now seen corresponding path program 1 times [2022-01-10 20:27:27,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 20:27:27,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669000998] [2022-01-10 20:27:27,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 20:27:27,565 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 20:27:27,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427079295] [2022-01-10 20:27:27,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 20:27:27,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 20:27:27,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 20:27:27,567 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 20:27:27,595 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 20:27:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 20:27:29,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 31 conjunts are in the unsatisfiable core [2022-01-10 20:27:29,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 20:27:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 20:27:30,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 20:27:50,327 WARN L860 $PredicateComparison]: unable to prove that (or (= |c_ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 0) (= (mod (let ((.cse1 (+ (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|))) (let ((.cse0 (mod (+ (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| .cse1) 18446744073709551616) 1) 18446744073709551616))) (+ (mod (* .cse0 .cse1) 18446744073709551616) (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse1) 18446744073709551616)) 18446744073709551616) (mod (* 18446744073709551615 .cse0) 18446744073709551616) 1))) 18446744073709551616) 0)) is different from true [2022-01-10 20:28:00,551 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|))) (let ((.cse2 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| .cse1) 18446744073709551616))) (or (= (mod (let ((.cse0 (mod (+ .cse2 1) 18446744073709551616))) (+ (mod (* .cse0 .cse1) 18446744073709551616) (mod (* 18446744073709551615 (mod (* |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| .cse1) 18446744073709551616)) 18446744073709551616) (mod (* 18446744073709551615 .cse0) 18446744073709551616) 1)) 18446744073709551616) 0) (not (= (mod (+ .cse2 (mod (* 18446744073709551615 |c_ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 18446744073709551616) (mod (* 18446744073709551615 |c_ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 18446744073709551616) 1) 18446744073709551616) 0))))) is different from true [2022-01-10 20:28:14,594 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* 18446744069414584320 (mod (div |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int| 2147483648) 2)) |c_ULTIMATE.start_ULTIMATE.start_main_~z~0#1Int|))) (or (<= 18446744073709551616 .cse0) (= (mod (let ((.cse1 (mod (+ 1 (mod .cse0 18446744073709551616)) 18446744073709551616))) (+ (mod (* 18446744073709551615 .cse1) 18446744073709551616) (mod (* 18446744073709551615 (mod (* .cse0 .cse0) 18446744073709551616)) 18446744073709551616) (mod (* .cse0 .cse1) 18446744073709551616) 1)) 18446744073709551616) 0) (< .cse0 0))) is different from true