/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/loop-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 08:36:49,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 08:36:49,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 08:36:49,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 08:36:49,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 08:36:49,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 08:36:49,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 08:36:49,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 08:36:49,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 08:36:49,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 08:36:49,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 08:36:49,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 08:36:49,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 08:36:49,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 08:36:49,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 08:36:49,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 08:36:49,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 08:36:49,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 08:36:49,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 08:36:49,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 08:36:49,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 08:36:49,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 08:36:49,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 08:36:49,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 08:36:49,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 08:36:49,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 08:36:49,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 08:36:49,285 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 08:36:49,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 08:36:49,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 08:36:49,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:36:49,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 08:36:49,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 08:36:49,288 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 08:36:49,288 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 08:36:49,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 08:36:49,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 08:36:49,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 08:36:49,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 08:36:49,476 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 08:36:49,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/css2003.i [2022-01-10 08:36:49,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90e3b0373/5976cbac31604a53bc961e6251e75e32/FLAG7f6097ec7 [2022-01-10 08:36:49,897 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 08:36:49,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i [2022-01-10 08:36:49,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90e3b0373/5976cbac31604a53bc961e6251e75e32/FLAG7f6097ec7 [2022-01-10 08:36:49,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90e3b0373/5976cbac31604a53bc961e6251e75e32 [2022-01-10 08:36:49,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 08:36:49,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 08:36:49,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 08:36:49,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 08:36:49,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 08:36:49,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:36:49" (1/1) ... [2022-01-10 08:36:49,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7e96f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:49, skipping insertion in model container [2022-01-10 08:36:49,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 08:36:49" (1/1) ... [2022-01-10 08:36:49,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 08:36:49,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 08:36:50,060 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i[895,908] [2022-01-10 08:36:50,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:36:50,077 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 08:36:50,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003.i[895,908] [2022-01-10 08:36:50,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 08:36:50,094 INFO L208 MainTranslator]: Completed translation [2022-01-10 08:36:50,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50 WrapperNode [2022-01-10 08:36:50,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 08:36:50,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 08:36:50,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 08:36:50,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 08:36:50,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,135 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-01-10 08:36:50,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 08:36:50,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 08:36:50,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 08:36:50,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 08:36:50,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 08:36:50,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 08:36:50,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 08:36:50,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 08:36:50,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 08:36:50,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:36:50,200 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 08:36:50,202 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 08:36:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 08:36:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 08:36:50,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 08:36:50,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 08:36:50,272 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 08:36:50,273 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 08:36:50,383 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 08:36:50,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 08:36:50,387 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 08:36:50,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:50 BoogieIcfgContainer [2022-01-10 08:36:50,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 08:36:50,389 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 08:36:50,389 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 08:36:50,390 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 08:36:50,392 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:50" (1/1) ... [2022-01-10 08:36:50,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:36:50 BasicIcfg [2022-01-10 08:36:50,471 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 08:36:50,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 08:36:50,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 08:36:50,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 08:36:50,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 08:36:49" (1/4) ... [2022-01-10 08:36:50,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e2eb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:36:50, skipping insertion in model container [2022-01-10 08:36:50,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 08:36:50" (2/4) ... [2022-01-10 08:36:50,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e2eb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 08:36:50, skipping insertion in model container [2022-01-10 08:36:50,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 08:36:50" (3/4) ... [2022-01-10 08:36:50,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e2eb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 08:36:50, skipping insertion in model container [2022-01-10 08:36:50,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 08:36:50" (4/4) ... [2022-01-10 08:36:50,476 INFO L111 eAbstractionObserver]: Analyzing ICFG css2003.iTransformedIcfg [2022-01-10 08:36:50,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 08:36:50,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 08:36:50,521 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 08:36:50,534 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 08:36:50,534 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 08:36:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:36:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-10 08:36:50,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:36:50,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-10 08:36:50,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:36:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:36:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1923944584, now seen corresponding path program 1 times [2022-01-10 08:36:50,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:36:50,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573182031] [2022-01-10 08:36:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:36:50,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:36:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:36:50,869 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 08:36:50,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:36:50,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573182031] [2022-01-10 08:36:50,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573182031] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 08:36:50,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 08:36:50,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 08:36:50,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665045341] [2022-01-10 08:36:50,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 08:36:50,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 08:36:50,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 08:36:50,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 08:36:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:36:50,899 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:36:50,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 08:36:50,968 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2022-01-10 08:36:50,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 08:36:50,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-01-10 08:36:50,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 08:36:50,976 INFO L225 Difference]: With dead ends: 26 [2022-01-10 08:36:50,976 INFO L226 Difference]: Without dead ends: 10 [2022-01-10 08:36:50,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 08:36:50,983 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 08:36:50,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 30 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 08:36:50,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-01-10 08:36:51,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-01-10 08:36:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 08:36:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2022-01-10 08:36:51,008 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2022-01-10 08:36:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 08:36:51,009 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2022-01-10 08:36:51,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 08:36:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2022-01-10 08:36:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-10 08:36:51,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 08:36:51,010 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 08:36:51,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 08:36:51,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 08:36:51,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 08:36:51,013 INFO L85 PathProgramCache]: Analyzing trace with hash -104438269, now seen corresponding path program 1 times [2022-01-10 08:36:51,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 08:36:51,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956068635] [2022-01-10 08:36:51,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:36:51,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 08:36:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:36:51,362 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 08:36:51,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 08:36:51,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956068635] [2022-01-10 08:36:51,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956068635] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 08:36:51,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190065009] [2022-01-10 08:36:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 08:36:51,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 08:36:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 08:36:51,378 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 08:36:51,379 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 08:36:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 08:36:51,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-10 08:36:51,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 08:36:53,157 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 08:36:53,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 08:37:17,826 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse9 (+ |c_ULTIMATE.start_ULTIMATE.start_main_~i~0#1Int| 1))) (let ((.cse8 (mod (+ |c_ULTIMATE.start_ULTIMATE.start_main_~k~0#1Int| 4294967295) 4294967296)) (.cse2 (mod .cse9 4294967296))) (let ((.cse10 (+ .cse8 .cse2))) (let ((.cse1 (mod .cse10 4294967296)) (.cse0 (* (mod .cse10 2147483648) 2)) (.cse3 (* 2 (mod .cse9 2147483648))) (.cse4 (+ 1 .cse2))) (or (not (<= .cse0 (+ 2 .cse1))) (not (<= (+ .cse1 1) .cse0)) (<= (+ (* (mod 1000000 2147483648) 2) .cse2) (+ 1000000 .cse3)) (not (<= .cse4 .cse3)) (let ((.cse7 (+ (mod (+ 4294967295 .cse8) 4294967296) (mod .cse4 4294967296)))) (let ((.cse6 (mod .cse7 4294967296)) (.cse5 (* (mod .cse7 2147483648) 2))) (and (<= (+ 2 .cse5) (+ .cse6 (* (mod 2 2147483648) 2))) (<= (+ (* (mod 1 2147483648) 2) .cse6) (+ .cse5 1)))))))))) is different from true