/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 22:22:21,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 22:22:21,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 22:22:21,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-09 22:22:21,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 22:22:21,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 22:22:21,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 22:22:21,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 22:22:21,422 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 22:22:21,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 22:22:21,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 22:22:21,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 22:22:21,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 22:22:21,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 22:22:21,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 22:22:21,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 22:22:21,425 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 22:22:21,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 22:22:21,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 22:22:21,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 22:22:21,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 22:22:21,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 22:22:21,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:22:21,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 22:22:21,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 22:22:21,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 22:22:21,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 22:22:21,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 22:22:21,429 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 22:22:21,430 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 22:22:21,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 22:22:21,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 22:22:21,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 22:22:21,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 22:22:21,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 22:22:21,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 22:22:21,629 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 22:22:21,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2022-01-09 22:22:21,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8fcb54e/f018e3d4136b4bc2af4b2719cdc46dbd/FLAGd363a0fcf [2022-01-09 22:22:22,061 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 22:22:22,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2022-01-09 22:22:22,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8fcb54e/f018e3d4136b4bc2af4b2719cdc46dbd/FLAGd363a0fcf [2022-01-09 22:22:22,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e8fcb54e/f018e3d4136b4bc2af4b2719cdc46dbd [2022-01-09 22:22:22,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 22:22:22,078 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 22:22:22,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 22:22:22,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 22:22:22,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 22:22:22,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b90333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22, skipping insertion in model container [2022-01-09 22:22:22,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 22:22:22,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 22:22:22,213 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-crafted/simple_vardep_2.c[584,597] [2022-01-09 22:22:22,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:22:22,230 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 22:22:22,242 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-crafted/simple_vardep_2.c[584,597] [2022-01-09 22:22:22,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 22:22:22,273 INFO L208 MainTranslator]: Completed translation [2022-01-09 22:22:22,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22 WrapperNode [2022-01-09 22:22:22,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 22:22:22,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 22:22:22,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 22:22:22,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 22:22:22,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,307 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-01-09 22:22:22,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 22:22:22,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 22:22:22,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 22:22:22,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 22:22:22,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 22:22:22,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 22:22:22,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 22:22:22,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 22:22:22,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (1/1) ... [2022-01-09 22:22:22,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 22:22:22,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:22:22,346 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) [2022-01-09 22:22:22,347 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 [2022-01-09 22:22:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 22:22:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 22:22:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 22:22:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 22:22:22,417 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 22:22:22,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 22:22:22,483 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 22:22:22,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 22:22:22,488 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-09 22:22:22,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:22:22 BoogieIcfgContainer [2022-01-09 22:22:22,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 22:22:22,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 22:22:22,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 22:22:22,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 22:22:22,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:22:22" (1/3) ... [2022-01-09 22:22:22,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cfe908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:22:22, skipping insertion in model container [2022-01-09 22:22:22,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:22:22" (2/3) ... [2022-01-09 22:22:22,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cfe908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:22:22, skipping insertion in model container [2022-01-09 22:22:22,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:22:22" (3/3) ... [2022-01-09 22:22:22,496 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2022-01-09 22:22:22,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 22:22:22,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 22:22:22,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 22:22:22,545 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 [2022-01-09 22:22:22,546 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 22:22:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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) [2022-01-09 22:22:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-01-09 22:22:22,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:22:22,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-01-09 22:22:22,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:22:22,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:22:22,567 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2022-01-09 22:22:22,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:22:22,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949519269] [2022-01-09 22:22:22,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:22:22,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:22:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:22:22,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:22:22,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:22:22,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949519269] [2022-01-09 22:22:22,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949519269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 22:22:22,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 22:22:22,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-09 22:22:22,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244800309] [2022-01-09 22:22:22,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 22:22:22,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 22:22:22,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:22:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 22:22:22,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-09 22:22:22,888 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-01-09 22:22:22,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:22:22,956 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-01-09 22:22:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 22:22:22,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-01-09 22:22:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:22:22,964 INFO L225 Difference]: With dead ends: 20 [2022-01-09 22:22:22,964 INFO L226 Difference]: Without dead ends: 9 [2022-01-09 22:22:22,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-09 22:22:22,969 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 22:22:22,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 22:22:22,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-01-09 22:22:23,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-01-09 22:22:23,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 22:22:23,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-01-09 22:22:23,005 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-01-09 22:22:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:22:23,006 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-01-09 22:22:23,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-01-09 22:22:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-01-09 22:22:23,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-09 22:22:23,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 22:22:23,007 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-01-09 22:22:23,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 22:22:23,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 22:22:23,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 22:22:23,011 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2022-01-09 22:22:23,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 22:22:23,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537914198] [2022-01-09 22:22:23,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:22:23,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 22:22:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:22:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:22:23,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 22:22:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537914198] [2022-01-09 22:22:23,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537914198] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 22:22:23,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576212047] [2022-01-09 22:22:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 22:22:23,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 22:22:23,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 22:22:23,308 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) [2022-01-09 22:22:23,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 22:22:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 22:22:23,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 21 conjunts are in the unsatisfiable core [2022-01-09 22:22:23,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 22:22:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 22:22:23,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 22:22:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-09 22:22:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576212047] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 22:22:24,432 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 22:22:24,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 8 [2022-01-09 22:22:24,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846991029] [2022-01-09 22:22:24,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 22:22:24,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-09 22:22:24,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 22:22:24,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-09 22:22:24,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-09 22:22:24,435 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2022-01-09 22:22:24,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 22:22:24,521 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2022-01-09 22:22:24,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-09 22:22:24,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 8 [2022-01-09 22:22:24,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 22:22:24,522 INFO L225 Difference]: With dead ends: 11 [2022-01-09 22:22:24,523 INFO L226 Difference]: Without dead ends: 0 [2022-01-09 22:22:24,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-01-09 22:22:24,524 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 22:22:24,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 22:22:24,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-09 22:22:24,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-09 22:22:24,526 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) [2022-01-09 22:22:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-09 22:22:24,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-01-09 22:22:24,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 22:22:24,527 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-09 22:22:24,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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) [2022-01-09 22:22:24,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-09 22:22:24,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-09 22:22:24,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-09 22:22:24,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-09 22:22:24,741 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 [2022-01-09 22:22:24,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-09 22:22:24,842 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-09 22:22:24,843 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 26) the Hoare annotation is: (or (and (= (mod (+ 3 |ULTIMATE.start_main_~k~0#1|) 4294967296) (mod (+ 3 (* 3 |ULTIMATE.start_main_~i~0#1|)) 4294967296)) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod (+ 2 |ULTIMATE.start_main_~j~0#1|) 4294967296) (mod (+ 2 (* 2 |ULTIMATE.start_main_~i~0#1|)) 4294967296))) (and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~k~0#1| 0) (= |ULTIMATE.start_main_~j~0#1| 0))) [2022-01-09 22:22:24,843 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 28) no Hoare annotation was computed. [2022-01-09 22:22:24,843 INFO L858 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-01-09 22:22:24,843 INFO L854 garLoopResultBuilder]: At program point L9-2(lines 7 13) the Hoare annotation is: (and (= (mod (+ 3 |ULTIMATE.start_main_~k~0#1|) 4294967296) (mod (+ 3 (* 3 |ULTIMATE.start_main_~i~0#1|)) 4294967296)) (<= 1 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (= (mod (+ 2 |ULTIMATE.start_main_~j~0#1|) 4294967296) (mod (+ 2 (* 2 |ULTIMATE.start_main_~i~0#1|)) 4294967296))) [2022-01-09 22:22:24,843 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-09 22:22:24,844 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-09 22:22:24,844 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-09 22:22:24,844 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2022-01-09 22:22:24,844 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-01-09 22:22:24,847 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-09 22:22:24,848 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-09 22:22:24,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:22:24 BoogieIcfgContainer [2022-01-09 22:22:24,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-09 22:22:24,864 INFO L158 Benchmark]: Toolchain (without parser) took 2785.67ms. Allocated memory was 182.5MB in the beginning and 273.7MB in the end (delta: 91.2MB). Free memory was 126.3MB in the beginning and 157.1MB in the end (delta: -30.7MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,864 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 182.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 22:22:24,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.24ms. Allocated memory was 182.5MB in the beginning and 273.7MB in the end (delta: 91.2MB). Free memory was 126.2MB in the beginning and 247.2MB in the end (delta: -121.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.83ms. Allocated memory is still 273.7MB. Free memory was 247.2MB in the beginning and 245.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,870 INFO L158 Benchmark]: Boogie Preprocessor took 13.88ms. Allocated memory is still 273.7MB. Free memory was 245.7MB in the beginning and 244.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,870 INFO L158 Benchmark]: RCFGBuilder took 166.35ms. Allocated memory is still 273.7MB. Free memory was 244.7MB in the beginning and 234.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,870 INFO L158 Benchmark]: TraceAbstraction took 2372.07ms. Allocated memory is still 273.7MB. Free memory was 234.2MB in the beginning and 157.1MB in the end (delta: 77.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2022-01-09 22:22:24,872 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 182.5MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.24ms. Allocated memory was 182.5MB in the beginning and 273.7MB in the end (delta: 91.2MB). Free memory was 126.2MB in the beginning and 247.2MB in the end (delta: -121.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.83ms. Allocated memory is still 273.7MB. Free memory was 247.2MB in the beginning and 245.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.88ms. Allocated memory is still 273.7MB. Free memory was 245.7MB in the beginning and 244.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 166.35ms. Allocated memory is still 273.7MB. Free memory was 244.7MB in the beginning and 234.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2372.07ms. Allocated memory is still 273.7MB. Free memory was 234.2MB in the beginning and 157.1MB in the end (delta: 77.1MB). Peak memory consumption was 77.6MB. 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: 10]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 71 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 4 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 1/6 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: 7]: Loop Invariant Derived loop invariant: ((3 + k) % 4294967296 == (3 + 3 * i) % 4294967296 && 1 <= cond) && (2 + j) % 4294967296 == (2 + 2 * i) % 4294967296 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((3 + k) % 4294967296 == (3 + 3 * i) % 4294967296 && 1 <= cond) && (2 + j) % 4294967296 == (2 + 2 * i) % 4294967296) || ((i == 0 && k == 0) && j == 0) RESULT: Ultimate proved your program to be correct! [2022-01-09 22:22:24,899 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...