/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 15:03:44,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 15:03:44,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 15:03:44,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 15:03:44,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 15:03:44,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 15:03:44,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 15:03:44,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 15:03:44,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 15:03:44,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 15:03:44,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 15:03:44,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 15:03:44,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 15:03:44,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 15:03:44,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 15:03:44,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 15:03:44,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 15:03:44,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 15:03:44,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 15:03:44,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 15:03:44,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 15:03:44,750 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 15:03:44,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 15:03:44,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 15:03:44,751 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 15:03:44,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 15:03:44,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 15:03:44,752 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 15:03:44,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 15:03:44,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 15:03:44,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 15:03:44,754 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 15:03:44,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 15:03:44,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 15:03:44,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 15:03:44,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 15:03:44,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 15:03:44,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:03:44,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 15:03:44,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 15:03:44,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 15:03:44,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 15:03:44,759 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 15:03:44,759 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 15:03:44,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 15:03:45,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 15:03:45,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 15:03:45,011 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 15:03:45,012 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 15:03:45,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound2.c [2022-01-10 15:03:45,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa20c8d84/0a53c815877c4c3f9aa38fd59debc561/FLAGa95bd6d35 [2022-01-10 15:03:45,450 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 15:03:45,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/lcm2_valuebound2.c [2022-01-10 15:03:45,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa20c8d84/0a53c815877c4c3f9aa38fd59debc561/FLAGa95bd6d35 [2022-01-10 15:03:45,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa20c8d84/0a53c815877c4c3f9aa38fd59debc561 [2022-01-10 15:03:45,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 15:03:45,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 15:03:45,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 15:03:45,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 15:03:45,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 15:03:45,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:03:45" (1/1) ... [2022-01-10 15:03:45,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352cedb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:45, skipping insertion in model container [2022-01-10 15:03:45,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:03:45" (1/1) ... [2022-01-10 15:03:45,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 15:03:45,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 15:03:46,035 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-scaling/lcm2_valuebound2.c[537,550] [2022-01-10 15:03:46,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:03:46,077 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 15:03:46,088 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-scaling/lcm2_valuebound2.c[537,550] [2022-01-10 15:03:46,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 15:03:46,104 INFO L208 MainTranslator]: Completed translation [2022-01-10 15:03:46,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46 WrapperNode [2022-01-10 15:03:46,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 15:03:46,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 15:03:46,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 15:03:46,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 15:03:46,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,132 INFO L137 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 80 [2022-01-10 15:03:46,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 15:03:46,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 15:03:46,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 15:03:46,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 15:03:46,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 15:03:46,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 15:03:46,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 15:03:46,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 15:03:46,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 15:03:46,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:03:46,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 15:03:46,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 15:03:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 15:03:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 15:03:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 15:03:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 15:03:46,284 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 15:03:46,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 15:03:46,544 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 15:03:46,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 15:03:46,549 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 15:03:46,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:03:46 BoogieIcfgContainer [2022-01-10 15:03:46,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 15:03:46,551 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 15:03:46,551 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 15:03:46,552 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 15:03:46,554 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:03:46" (1/1) ... [2022-01-10 15:03:46,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:03:46 BasicIcfg [2022-01-10 15:03:46,628 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 15:03:46,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 15:03:46,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 15:03:46,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 15:03:46,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:03:45" (1/4) ... [2022-01-10 15:03:46,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de40097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:03:46, skipping insertion in model container [2022-01-10 15:03:46,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:03:46" (2/4) ... [2022-01-10 15:03:46,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de40097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:03:46, skipping insertion in model container [2022-01-10 15:03:46,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:03:46" (3/4) ... [2022-01-10 15:03:46,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de40097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:03:46, skipping insertion in model container [2022-01-10 15:03:46,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 03:03:46" (4/4) ... [2022-01-10 15:03:46,645 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound2.cTransformedIcfg [2022-01-10 15:03:46,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 15:03:46,649 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 15:03:46,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 15:03:46,691 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 15:03:46,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 15:03:46,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:46,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 15:03:46,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:03:46,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:03:46,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:03:46,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:03:46,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1717401675, now seen corresponding path program 1 times [2022-01-10 15:03:46,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:03:46,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924876241] [2022-01-10 15:03:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:46,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:03:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:03:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:03:46,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:03:46,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924876241] [2022-01-10 15:03:46,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924876241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:03:46,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:03:46,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 15:03:46,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568421619] [2022-01-10 15:03:46,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:03:46,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 15:03:46,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:03:46,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 15:03:46,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 15:03:46,885 INFO L87 Difference]: Start difference. First operand has 29 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 28 states have internal predecessors, (40), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:03:46,903 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions. [2022-01-10 15:03:46,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 15:03:46,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 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) Word has length 17 [2022-01-10 15:03:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:03:46,910 INFO L225 Difference]: With dead ends: 55 [2022-01-10 15:03:46,911 INFO L226 Difference]: Without dead ends: 25 [2022-01-10 15:03:46,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 15:03:46,916 INFO L933 BasicCegarLoop]: 30 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, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:03:46,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:03:46,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-01-10 15:03:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-01-10 15:03:46,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-01-10 15:03:46,941 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17 [2022-01-10 15:03:46,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:03:46,942 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-01-10 15:03:46,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:46,942 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-01-10 15:03:46,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-10 15:03:46,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:03:46,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:03:46,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 15:03:46,944 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:03:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:03:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash 214648336, now seen corresponding path program 1 times [2022-01-10 15:03:46,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:03:46,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56675183] [2022-01-10 15:03:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:46,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:03:46,979 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 15:03:46,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439428452] [2022-01-10 15:03:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:46,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 15:03:46,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:03:46,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 15:03:46,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 15:03:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:03:47,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 27 conjunts are in the unsatisfiable core [2022-01-10 15:03:47,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 15:03:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:03:47,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 15:03:47,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:03:47,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56675183] [2022-01-10 15:03:47,928 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 15:03:47,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439428452] [2022-01-10 15:03:47,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439428452] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:03:47,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:03:47,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 15:03:47,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712971223] [2022-01-10 15:03:47,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:03:47,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 15:03:47,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:03:47,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 15:03:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-01-10 15:03:47,936 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) 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) [2022-01-10 15:03:48,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:03:48,365 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-01-10 15:03:48,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 15:03:48,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) 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) Word has length 17 [2022-01-10 15:03:48,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:03:48,368 INFO L225 Difference]: With dead ends: 36 [2022-01-10 15:03:48,368 INFO L226 Difference]: Without dead ends: 30 [2022-01-10 15:03:48,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2022-01-10 15:03:48,369 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 115 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:03:48,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 21 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 15:03:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-01-10 15:03:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-01-10 15:03:48,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:48,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-01-10 15:03:48,376 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2022-01-10 15:03:48,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:03:48,376 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-01-10 15:03:48,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) 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) [2022-01-10 15:03:48,376 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-01-10 15:03:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-10 15:03:48,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:03:48,377 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:03:48,407 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 15:03:48,587 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 15:03:48,588 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:03:48,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:03:48,589 INFO L85 PathProgramCache]: Analyzing trace with hash 138745669, now seen corresponding path program 1 times [2022-01-10 15:03:48,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:03:48,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581396450] [2022-01-10 15:03:48,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:48,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:03:48,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 15:03:48,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043486828] [2022-01-10 15:03:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:48,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 15:03:48,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:03:48,614 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 15:03:48,641 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 15:03:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:03:48,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-10 15:03:48,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 15:03:49,291 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 15:03:49,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 15:03:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:03:49,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:03:49,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581396450] [2022-01-10 15:03:49,478 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 15:03:49,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043486828] [2022-01-10 15:03:49,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043486828] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 15:03:49,479 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 15:03:49,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6] total 14 [2022-01-10 15:03:49,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358091320] [2022-01-10 15:03:49,479 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 15:03:49,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 15:03:49,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:03:49,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 15:03:49,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-01-10 15:03:49,482 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:52,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 15:03:54,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 15:03:58,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-01-10 15:03:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:03:58,669 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2022-01-10 15:03:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 15:03:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 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 22 [2022-01-10 15:03:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:03:58,670 INFO L225 Difference]: With dead ends: 54 [2022-01-10 15:03:58,670 INFO L226 Difference]: Without dead ends: 35 [2022-01-10 15:03:58,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=201, Invalid=399, Unknown=0, NotChecked=0, Total=600 [2022-01-10 15:03:58,671 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 106 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 68 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-01-10 15:03:58,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 29 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 96 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-01-10 15:03:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-10 15:03:58,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2022-01-10 15:03:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:58,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-01-10 15:03:58,677 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 22 [2022-01-10 15:03:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:03:58,678 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-01-10 15:03:58,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-01-10 15:03:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-10 15:03:58,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 15:03:58,679 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 15:03:58,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-10 15:03:58,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-01-10 15:03:58,884 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 15:03:58,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 15:03:58,884 INFO L85 PathProgramCache]: Analyzing trace with hash -470048112, now seen corresponding path program 1 times [2022-01-10 15:03:58,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 15:03:58,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609529178] [2022-01-10 15:03:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:58,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 15:03:58,922 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-10 15:03:58,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157418578] [2022-01-10 15:03:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 15:03:58,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 15:03:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 15:03:58,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 15:03:58,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-10 15:03:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 15:03:59,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 15:03:59,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 15:03:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 15:03:59,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 15:03:59,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 15:03:59,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609529178] [2022-01-10 15:03:59,432 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-10 15:03:59,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157418578] [2022-01-10 15:03:59,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157418578] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 15:03:59,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 15:03:59,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 15:03:59,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031626542] [2022-01-10 15:03:59,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 15:03:59,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 15:03:59,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 15:03:59,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 15:03:59,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 15:03:59,434 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:59,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 15:03:59,626 INFO L93 Difference]: Finished difference Result 38 states and 39 transitions. [2022-01-10 15:03:59,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 15:03:59,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 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 27 [2022-01-10 15:03:59,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 15:03:59,627 INFO L225 Difference]: With dead ends: 38 [2022-01-10 15:03:59,627 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 15:03:59,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-01-10 15:03:59,628 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 15:03:59,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 23 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 15:03:59,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 15:03:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 15:03:59,629 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) [2022-01-10 15:03:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 15:03:59,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2022-01-10 15:03:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 15:03:59,630 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 15:03:59,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 15:03:59,630 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 15:03:59,630 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 15:03:59,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-10 15:03:59,633 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-10 15:03:59,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-10 15:03:59,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 15:03:59,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 15:04:03,658 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 15:04:03,658 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 15:04:03,658 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L9-2(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L9-4(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L9-6(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L9-8(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8-4(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L9-10(line 9) no Hoare annotation was computed. [2022-01-10 15:04:03,659 INFO L858 garLoopResultBuilder]: For program point L8-5(lines 8 10) no Hoare annotation was computed. [2022-01-10 15:04:03,660 INFO L854 garLoopResultBuilder]: At program point L43-2(lines 37 50) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) (.cse1 (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1)) (.cse2 (<= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 2)) (.cse3 (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|)) (.cse4 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse5 (<= |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 2))) (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) .cse0 .cse1 .cse2 .cse3 .cse4 (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) .cse5) (and (let ((.cse6 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|)) (.cse7 (mod (* 4294967295 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296))) (< (div (+ .cse6 .cse7 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (div (+ .cse6 .cse7 2) 4294967296))) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) (< |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 4294967296) .cse0 (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|) .cse1 .cse2 .cse3 .cse4 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= (mod (+ (mod (* |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 4294967296)) 4294967296) (mod (* (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 4294967296) |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 4294967296)) .cse5))) [2022-01-10 15:04:03,660 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 50) no Hoare annotation was computed. [2022-01-10 15:04:03,660 INFO L858 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2022-01-10 15:04:03,660 INFO L858 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2022-01-10 15:04:03,660 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2022-01-10 15:04:03,660 INFO L854 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|)) (.cse1 (<= 1 |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int|)) (.cse2 (<= |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int| 1)) (.cse3 (<= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| 2)) (.cse4 (<= 0 |ULTIMATE.start_ULTIMATE.start_assume_abort_if_not_~cond#1Int|)) (.cse5 (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|)) (.cse6 (<= |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int| 2))) (or (and (= |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) .cse0 .cse1 (<= |ULTIMATE.start_ULTIMATE.start___VERIFIER_assert_~cond#1Int| 1) .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) (= |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) .cse6) (and (let ((.cse7 (* (- 1) |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|)) (.cse8 (mod (* 4294967295 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296))) (< (div (+ .cse7 .cse8 |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (div (+ .cse7 .cse8 2) 4294967296))) (<= 1 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) (< |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int| 4294967296) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= 0 |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) (= (mod (+ (mod (* |ULTIMATE.start_ULTIMATE.start_main_~u~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~x~0#1Int|) 4294967296) (mod (* |ULTIMATE.start_ULTIMATE.start_main_~v~0#1Int| |ULTIMATE.start_ULTIMATE.start_main_~y~0#1Int|) 4294967296)) 4294967296) (mod (* (mod (* 2 |ULTIMATE.start_ULTIMATE.start_main_~a~0#1Int|) 4294967296) |ULTIMATE.start_ULTIMATE.start_main_~b~0#1Int|) 4294967296)) .cse6))) [2022-01-10 15:04:03,660 INFO L858 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L861 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: true [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L861 garLoopResultBuilder]: At program point L56(lines 19 57) the Hoare annotation is: true [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 49) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 15:04:03,661 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 15:04:03,664 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-01-10 15:04:03,667 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 15:04:03,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:04:03 BasicIcfg [2022-01-10 15:04:03,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 15:04:03,716 INFO L158 Benchmark]: Toolchain (without parser) took 17850.97ms. Allocated memory was 174.1MB in the beginning and 227.5MB in the end (delta: 53.5MB). Free memory was 118.6MB in the beginning and 117.7MB in the end (delta: 908.5kB). Peak memory consumption was 54.6MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,716 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 15:04:03,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.63ms. Allocated memory was 174.1MB in the beginning and 227.5MB in the end (delta: 53.5MB). Free memory was 118.4MB in the beginning and 200.1MB in the end (delta: -81.7MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.34ms. Allocated memory is still 227.5MB. Free memory was 200.1MB in the beginning and 198.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,717 INFO L158 Benchmark]: Boogie Preprocessor took 19.17ms. Allocated memory is still 227.5MB. Free memory was 198.6MB in the beginning and 197.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,717 INFO L158 Benchmark]: RCFGBuilder took 397.74ms. Allocated memory is still 227.5MB. Free memory was 197.1MB in the beginning and 185.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,717 INFO L158 Benchmark]: IcfgTransformer took 77.17ms. Allocated memory is still 227.5MB. Free memory was 185.5MB in the beginning and 180.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,718 INFO L158 Benchmark]: TraceAbstraction took 17086.28ms. Allocated memory is still 227.5MB. Free memory was 180.3MB in the beginning and 117.7MB in the end (delta: 62.6MB). Peak memory consumption was 63.1MB. Max. memory is 8.0GB. [2022-01-10 15:04:03,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 174.1MB. Free memory is still 134.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.63ms. Allocated memory was 174.1MB in the beginning and 227.5MB in the end (delta: 53.5MB). Free memory was 118.4MB in the beginning and 200.1MB in the end (delta: -81.7MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.34ms. Allocated memory is still 227.5MB. Free memory was 200.1MB in the beginning and 198.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.17ms. Allocated memory is still 227.5MB. Free memory was 198.6MB in the beginning and 197.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 397.74ms. Allocated memory is still 227.5MB. Free memory was 197.1MB in the beginning and 185.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 77.17ms. Allocated memory is still 227.5MB. Free memory was 185.5MB in the beginning and 180.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * TraceAbstraction took 17086.28ms. Allocated memory is still 227.5MB. Free memory was 180.3MB in the beginning and 117.7MB in the end (delta: 62.6MB). Peak memory consumption was 63.1MB. 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: 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, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 238 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 200 IncrementalHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 55 mSDtfsCounter, 200 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=3, InterpolantAutomatonStates: 39, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 230 HoareAnnotationTreeSize, 4 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 110 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040 SizeOfPredicates, 34 NumberOfNonLiveVariables, 678 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 10/13 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 2 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((((((~bvule32(1bv32, cond) && ~bvule32(1bv32, a)) && ~bvule32(0bv32, cond)) && ~bvult64(~zero_extendFrom32To33(y), 4294967296bv33)) && ~bvadd16(~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(x), ~zero_extendFrom32To64(u))[31:0]), ~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(v), ~zero_extendFrom32To64(y))[31:0]))[31:0] == ~bvmul32(~zero_extendFrom32To64(~bvmul32(2bv33, ~zero_extendFrom32To33(a))[31:0]), ~zero_extendFrom32To64(b))[31:0]) && ~bvslt33(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(y))), ~zero_extendFrom32To65(~bvmul32(~zero_extendFrom32To64(x), 4294967295bv64)[31:0])), ~zero_extendFrom32To65(x))[64:32], ~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(y))), ~zero_extendFrom32To65(~bvmul32(~zero_extendFrom32To64(x), 4294967295bv64)[31:0])), 2bv65)[64:32])) && ~bvule32(1bv32, b)) && ~bvule32(b, 2bv32)) && ~bvule32(a, 2bv32)) && ~bvule32(1bv32, x)) && ~bvule32(0bv32, y)) && ~bvule32(cond, 1bv32)) || (((((((((((~bvule32(1bv32, cond) && x == a) && v == a) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(1bv32, b)) && ~bvule32(b, 2bv32)) && ~bvule32(cond, 1bv32)) && ~bvule32(a, 2bv32)) && ~bvule32(1bv32, x)) && ~bvule32(cond, 1bv32)) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((((~bvule32(1bv32, cond) && ~bvule32(1bv32, a)) && ~bvule32(0bv32, cond)) && ~bvult64(~zero_extendFrom32To33(y), 4294967296bv33)) && ~bvadd16(~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(x), ~zero_extendFrom32To64(u))[31:0]), ~zero_extendFrom32To33(~bvmul32(~zero_extendFrom32To64(v), ~zero_extendFrom32To64(y))[31:0]))[31:0] == ~bvmul32(~zero_extendFrom32To64(~bvmul32(2bv33, ~zero_extendFrom32To33(a))[31:0]), ~zero_extendFrom32To64(b))[31:0]) && ~bvslt33(~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(y))), ~zero_extendFrom32To65(~bvmul32(~zero_extendFrom32To64(x), 4294967295bv64)[31:0])), ~zero_extendFrom32To65(x))[64:32], ~bvadd16(~bvadd16(~sign_extendFrom8To32(~bvmul32(18446744073709551615bv64, ~zero_extendFrom32To64(y))), ~zero_extendFrom32To65(~bvmul32(~zero_extendFrom32To64(x), 4294967295bv64)[31:0])), 2bv65)[64:32])) && ~bvule32(1bv32, b)) && ~bvule32(b, 2bv32)) && ~bvule32(a, 2bv32)) && ~bvule32(1bv32, x)) && ~bvule32(0bv32, y)) && ~bvule32(cond, 1bv32)) || (((((((((x == a && v == a) && u == b) && y == b) && ~bvule32(0bv32, cond)) && ~bvule32(1bv32, b)) && ~bvule32(b, 2bv32)) && ~bvule32(a, 2bv32)) && ~bvule32(1bv32, x)) && ~bvule32(cond, 1bv32)) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 15:04:03,770 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...