/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_SUM.epf -i ../../../trunk/examples/svcomp/loop-acceleration/phases_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 02:00:59,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 02:00:59,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 02:00:59,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 02:00:59,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 02:00:59,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 02:00:59,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 02:00:59,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 02:00:59,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 02:00:59,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 02:00:59,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 02:00:59,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 02:00:59,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 02:00:59,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 02:00:59,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 02:00:59,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 02:00:59,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 02:00:59,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 02:00:59,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 02:00:59,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 02:00:59,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 02:00:59,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 02:00:59,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 02:00:59,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 02:00:59,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 02:00:59,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 02:00:59,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 02:00:59,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 02:00:59,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 02:00:59,611 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 02:00:59,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 02:00:59,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 02:00:59,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 02:00:59,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 02:00:59,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 02:00:59,613 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 02:00:59,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 02:00:59,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 02:00:59,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 02:00:59,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 02:00:59,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 02:00:59,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:00:59,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 02:00:59,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 02:00:59,617 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 02:00:59,617 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 02:00:59,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 02:00:59,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 02:00:59,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 02:00:59,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 02:00:59,825 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 02:00:59,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2022-01-11 02:00:59,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d904d06e/0633646f2d9442e89ef3ad4a96cb1877/FLAGbb1d5eae2 [2022-01-11 02:01:00,262 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 02:01:00,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-2.c [2022-01-11 02:01:00,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d904d06e/0633646f2d9442e89ef3ad4a96cb1877/FLAGbb1d5eae2 [2022-01-11 02:01:00,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d904d06e/0633646f2d9442e89ef3ad4a96cb1877 [2022-01-11 02:01:00,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 02:01:00,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 02:01:00,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 02:01:00,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 02:01:00,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 02:01:00,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307b50f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00, skipping insertion in model container [2022-01-11 02:01:00,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 02:01:00,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 02:01:00,455 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-acceleration/phases_2-2.c[459,472] [2022-01-11 02:01:00,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:01:00,472 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 02:01:00,484 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-acceleration/phases_2-2.c[459,472] [2022-01-11 02:01:00,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 02:01:00,497 INFO L208 MainTranslator]: Completed translation [2022-01-11 02:01:00,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00 WrapperNode [2022-01-11 02:01:00,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 02:01:00,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 02:01:00,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 02:01:00,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 02:01:00,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,518 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-01-11 02:01:00,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 02:01:00,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 02:01:00,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 02:01:00,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 02:01:00,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 02:01:00,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 02:01:00,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 02:01:00,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 02:01:00,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 02:01:00,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:01:00,574 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) [2022-01-11 02:01:00,587 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 [2022-01-11 02:01:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 02:01:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 02:01:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 02:01:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 02:01:00,655 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 02:01:00,656 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 02:01:00,789 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 02:01:00,793 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 02:01:00,793 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 02:01:00,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:01:00 BoogieIcfgContainer [2022-01-11 02:01:00,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 02:01:00,795 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 02:01:00,795 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 02:01:00,796 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 02:01:00,797 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:01:00" (1/1) ... [2022-01-11 02:01:00,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:01:00 BasicIcfg [2022-01-11 02:01:00,870 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 02:01:00,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 02:01:00,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 02:01:00,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 02:01:00,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 02:01:00" (1/4) ... [2022-01-11 02:01:00,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8eda64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:01:00, skipping insertion in model container [2022-01-11 02:01:00,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 02:01:00" (2/4) ... [2022-01-11 02:01:00,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8eda64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:01:00, skipping insertion in model container [2022-01-11 02:01:00,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:01:00" (3/4) ... [2022-01-11 02:01:00,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8eda64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:01:00, skipping insertion in model container [2022-01-11 02:01:00,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 02:01:00" (4/4) ... [2022-01-11 02:01:00,875 INFO L111 eAbstractionObserver]: Analyzing ICFG phases_2-2.cTransformedIcfg [2022-01-11 02:01:00,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 02:01:00,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 02:01:00,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 02:01:00,940 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 [2022-01-11 02:01:00,941 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 02:01:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 02:01:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:01:00,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:01:00,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:01:00,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:01:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:01:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 720234992, now seen corresponding path program 1 times [2022-01-11 02:01:00,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:01:00,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621451330] [2022-01-11 02:01:00,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:01:00,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:01:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:01:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:01:01,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:01:01,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621451330] [2022-01-11 02:01:01,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621451330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:01:01,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:01:01,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 02:01:01,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350243868] [2022-01-11 02:01:01,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:01:01,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 02:01:01,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:01:01,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 02:01:01,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 02:01:01,066 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-01-11 02:01:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:01:01,074 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-01-11 02:01:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 02:01:01,075 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-01-11 02:01:01,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:01:01,079 INFO L225 Difference]: With dead ends: 21 [2022-01-11 02:01:01,079 INFO L226 Difference]: Without dead ends: 9 [2022-01-11 02:01:01,080 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 [2022-01-11 02:01:01,083 INFO L933 BasicCegarLoop]: 15 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, 15 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 [2022-01-11 02:01:01,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:01:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-11 02:01:01,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-11 02:01:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 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) [2022-01-11 02:01:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-01-11 02:01:01,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2022-01-11 02:01:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:01:01,100 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-01-11 02:01:01,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-01-11 02:01:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-01-11 02:01:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-11 02:01:01,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:01:01,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:01:01,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 02:01:01,101 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:01:01,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:01:01,102 INFO L85 PathProgramCache]: Analyzing trace with hash 720264783, now seen corresponding path program 1 times [2022-01-11 02:01:01,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:01:01,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132467102] [2022-01-11 02:01:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:01:01,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:01:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:01:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:01:01,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:01:01,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132467102] [2022-01-11 02:01:01,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132467102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 02:01:01,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 02:01:01,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 02:01:01,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539534933] [2022-01-11 02:01:01,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 02:01:01,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 02:01:01,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:01:01,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 02:01:01,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 02:01:01,253 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-01-11 02:01:01,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:01:01,302 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-01-11 02:01:01,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 02:01:01,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-01-11 02:01:01,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:01:01,304 INFO L225 Difference]: With dead ends: 15 [2022-01-11 02:01:01,304 INFO L226 Difference]: Without dead ends: 11 [2022-01-11 02:01:01,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 02:01:01,305 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 02:01:01,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 15 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 02:01:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-01-11 02:01:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-01-11 02:01:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2022-01-11 02:01:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-01-11 02:01:01,308 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2022-01-11 02:01:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:01:01,308 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-01-11 02:01:01,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-01-11 02:01:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-01-11 02:01:01,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-11 02:01:01,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 02:01:01,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 02:01:01,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 02:01:01,309 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 02:01:01,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 02:01:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash 715016147, now seen corresponding path program 1 times [2022-01-11 02:01:01,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 02:01:01,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463366529] [2022-01-11 02:01:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:01:01,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 02:01:01,319 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-11 02:01:01,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672836656] [2022-01-11 02:01:01,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 02:01:01,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:01:01,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 02:01:01,320 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) [2022-01-11 02:01:01,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-11 02:01:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 02:01:01,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-11 02:01:01,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-11 02:01:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:01:01,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-11 02:01:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 02:01:01,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 02:01:01,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463366529] [2022-01-11 02:01:01,681 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-11 02:01:01,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672836656] [2022-01-11 02:01:01,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672836656] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-11 02:01:01,681 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-11 02:01:01,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-01-11 02:01:01,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657691549] [2022-01-11 02:01:01,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-11 02:01:01,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 02:01:01,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 02:01:01,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 02:01:01,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-01-11 02:01:01,683 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) 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) [2022-01-11 02:01:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 02:01:01,846 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2022-01-11 02:01:01,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 02:01:01,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) 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) Word has length 9 [2022-01-11 02:01:01,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 02:01:01,846 INFO L225 Difference]: With dead ends: 15 [2022-01-11 02:01:01,846 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 02:01:01,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-01-11 02:01:01,848 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 02:01:01,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 02:01:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 02:01:01,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 02:01:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-11 02:01:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 02:01:01,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-01-11 02:01:01,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 02:01:01,849 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 02:01:01,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.3636363636363635) 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) [2022-01-11 02:01:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 02:01:01,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 02:01:01,851 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-11 02:01:01,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-11 02:01:02,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-11 02:01:02,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-11 02:01:02,097 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-11 02:01:02,097 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L861 garLoopResultBuilder]: At program point L17(lines 17 32) the Hoare annotation is: true [2022-01-11 02:01:02,098 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 23 29) the Hoare annotation is: (or (and (< (div (+ (- 2) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (- 4294967296)) (+ (div (+ |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) 4294967296) 1)) (< |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 4294967296) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (and (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int| 1))) [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point L23-2(lines 23 29) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L858 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2022-01-11 02:01:02,098 INFO L861 garLoopResultBuilder]: At program point L11-2(lines 10 15) the Hoare annotation is: true [2022-01-11 02:01:02,099 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-01-11 02:01:02,104 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-11 02:01:02,105 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 02:01:02,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:01:02 BasicIcfg [2022-01-11 02:01:02,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 02:01:02,129 INFO L158 Benchmark]: Toolchain (without parser) took 1845.85ms. Allocated memory was 194.0MB in the beginning and 245.4MB in the end (delta: 51.4MB). Free memory was 136.7MB in the beginning and 127.0MB in the end (delta: 9.6MB). Peak memory consumption was 62.2MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,129 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 02:01:02,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.68ms. Allocated memory was 194.0MB in the beginning and 245.4MB in the end (delta: 51.4MB). Free memory was 136.4MB in the beginning and 215.7MB in the end (delta: -79.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,132 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.93ms. Allocated memory is still 245.4MB. Free memory was 215.7MB in the beginning and 214.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,132 INFO L158 Benchmark]: Boogie Preprocessor took 25.82ms. Allocated memory is still 245.4MB. Free memory was 214.6MB in the beginning and 213.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,133 INFO L158 Benchmark]: RCFGBuilder took 249.97ms. Allocated memory is still 245.4MB. Free memory was 213.0MB in the beginning and 203.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,133 INFO L158 Benchmark]: IcfgTransformer took 74.58ms. Allocated memory is still 245.4MB. Free memory was 203.6MB in the beginning and 201.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,133 INFO L158 Benchmark]: TraceAbstraction took 1257.21ms. Allocated memory is still 245.4MB. Free memory was 200.5MB in the beginning and 127.0MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2022-01-11 02:01:02,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.68ms. Allocated memory was 194.0MB in the beginning and 245.4MB in the end (delta: 51.4MB). Free memory was 136.4MB in the beginning and 215.7MB in the end (delta: -79.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.93ms. Allocated memory is still 245.4MB. Free memory was 215.7MB in the beginning and 214.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.82ms. Allocated memory is still 245.4MB. Free memory was 214.6MB in the beginning and 213.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 249.97ms. Allocated memory is still 245.4MB. Free memory was 213.0MB in the beginning and 203.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * IcfgTransformer took 74.58ms. Allocated memory is still 245.4MB. Free memory was 203.6MB in the beginning and 201.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1257.21ms. Allocated memory is still 245.4MB. Free memory was 200.5MB in the beginning and 127.0MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 23 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 32 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 149 SizeOfPredicates, 4 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((~bvslt34(~sign_extendFrom8To32((if !(0bv33 == ~bvurem33(~bvadd16(8589934590bv33, ~zero_extendFrom32To33(x)), 4294967296bv33)) then (if ~bvadd16(8589934590bv33, ~zero_extendFrom32To33(x))[32:32] == 1bv1 then ~bvadd16(1bv33, ~bvsdiv33(~bvadd16(8589934590bv33, ~zero_extendFrom32To33(x)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934590bv33, ~zero_extendFrom32To33(x)), 4294967296bv33)) else ~bvsdiv33(~bvadd16(8589934590bv33, ~zero_extendFrom32To33(x)), 4294967296bv33))), ~bvadd16(~sign_extendFrom8To32(~bvadd16(~zero_extendFrom32To65(y), ~sign_extendFrom8To32(~bvmul32(~zero_extendFrom32To64(x), 18446744073709551615bv64)))[64:32]), 1bv34)) && ~bvult64(~zero_extendFrom32To33(x), 4294967296bv33)) && ~bvule32(1bv32, x)) || (~bvule32(1bv32, y) && x == 1bv32) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-11 02:01:02,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...