/usr/bin/java -ea -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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/while_infinite_loop_1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 02:47:09,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 02:47:09,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 02:47:09,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-28 02:47:09,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 02:47:09,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 02:47:09,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 02:47:09,613 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-28 02:47:09,628 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 02:47:09,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 02:47:09,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 02:47:09,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-28 02:47:09,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 02:47:09,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 02:47:09,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 02:47:09,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 02:47:09,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 02:47:09,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-28 02:47:09,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 02:47:09,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 02:47:09,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 02:47:09,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-28 02:47:09,632 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-28 02:47:09,632 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-28 02:47:09,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 02:47:09,632 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-28 02:47:09,632 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 02:47:09,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 02:47:09,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 02:47:09,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 02:47:09,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 02:47:09,851 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 02:47:09,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_1.c [2022-04-28 02:47:09,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e262878bc/76bd2edae59e454cb784f9f290a0032e/FLAGf91861bff [2022-04-28 02:47:10,280 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 02:47:10,281 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_1.c [2022-04-28 02:47:10,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e262878bc/76bd2edae59e454cb784f9f290a0032e/FLAGf91861bff [2022-04-28 02:47:10,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e262878bc/76bd2edae59e454cb784f9f290a0032e [2022-04-28 02:47:10,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 02:47:10,300 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-28 02:47:10,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 02:47:10,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 02:47:10,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 02:47:10,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a84888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10, skipping insertion in model container [2022-04-28 02:47:10,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 02:47:10,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 02:47:10,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_1.c[333,346] [2022-04-28 02:47:10,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 02:47:10,467 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 02:47:10,475 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_1.c[333,346] [2022-04-28 02:47:10,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 02:47:10,487 INFO L208 MainTranslator]: Completed translation [2022-04-28 02:47:10,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10 WrapperNode [2022-04-28 02:47:10,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 02:47:10,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 02:47:10,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 02:47:10,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 02:47:10,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 02:47:10,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 02:47:10,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 02:47:10,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 02:47:10,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (1/1) ... [2022-04-28 02:47:10,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 02:47:10,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 02:47:10,537 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) [2022-04-28 02:47:10,541 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 [2022-04-28 02:47:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 02:47:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 02:47:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 02:47:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 02:47:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 02:47:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 02:47:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 02:47:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 02:47:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 02:47:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 02:47:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 02:47:10,611 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 02:47:10,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 02:47:10,677 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 02:47:10,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 02:47:10,683 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 02:47:10,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:47:10 BoogieIcfgContainer [2022-04-28 02:47:10,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 02:47:10,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 02:47:10,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 02:47:10,689 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 02:47:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 02:47:10" (1/3) ... [2022-04-28 02:47:10,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7fb414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:47:10, skipping insertion in model container [2022-04-28 02:47:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 02:47:10" (2/3) ... [2022-04-28 02:47:10,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7fb414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 02:47:10, skipping insertion in model container [2022-04-28 02:47:10,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 02:47:10" (3/3) ... [2022-04-28 02:47:10,691 INFO L111 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_1.c [2022-04-28 02:47:10,703 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-28 02:47:10,703 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 02:47:10,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 02:47:10,744 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67c02491, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3e02d8ee [2022-04-28 02:47:10,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 02:47:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-28 02:47:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-28 02:47:10,757 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 02:47:10,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 02:47:10,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 02:47:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 02:47:10,762 INFO L85 PathProgramCache]: Analyzing trace with hash 612371967, now seen corresponding path program 1 times [2022-04-28 02:47:10,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 02:47:10,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1962674188] [2022-04-28 02:47:10,779 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 02:47:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash 612371967, now seen corresponding path program 2 times [2022-04-28 02:47:10,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 02:47:10,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868328149] [2022-04-28 02:47:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 02:47:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 02:47:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 02:47:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 02:47:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 02:47:11,054 INFO L290 TraceCheckUtils]: 0: Hoare triple {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); {22#true} is VALID [2022-04-28 02:47:11,054 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID [2022-04-28 02:47:11,055 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #35#return; {22#true} is VALID [2022-04-28 02:47:11,056 INFO L272 TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 02:47:11,057 INFO L290 TraceCheckUtils]: 1: Hoare triple {30#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); {22#true} is VALID [2022-04-28 02:47:11,057 INFO L290 TraceCheckUtils]: 2: Hoare triple {22#true} assume true; {22#true} is VALID [2022-04-28 02:47:11,057 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {22#true} {22#true} #35#return; {22#true} is VALID [2022-04-28 02:47:11,057 INFO L272 TraceCheckUtils]: 4: Hoare triple {22#true} call #t~ret4 := main(); {22#true} is VALID [2022-04-28 02:47:11,058 INFO L290 TraceCheckUtils]: 5: Hoare triple {22#true} ~x~0 := 0; {27#(= main_~x~0 0)} is VALID [2022-04-28 02:47:11,059 INFO L290 TraceCheckUtils]: 6: Hoare triple {27#(= main_~x~0 0)} assume !false; {27#(= main_~x~0 0)} is VALID [2022-04-28 02:47:11,060 INFO L272 TraceCheckUtils]: 7: Hoare triple {27#(= main_~x~0 0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {28#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 02:47:11,060 INFO L290 TraceCheckUtils]: 8: Hoare triple {28#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {29#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-28 02:47:11,061 INFO L290 TraceCheckUtils]: 9: Hoare triple {29#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {23#false} is VALID [2022-04-28 02:47:11,061 INFO L290 TraceCheckUtils]: 10: Hoare triple {23#false} assume !false; {23#false} is VALID [2022-04-28 02:47:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 02:47:11,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 02:47:11,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868328149] [2022-04-28 02:47:11,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868328149] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 02:47:11,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 02:47:11,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 02:47:11,065 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 02:47:11,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1962674188] [2022-04-28 02:47:11,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1962674188] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 02:47:11,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 02:47:11,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-28 02:47:11,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395107101] [2022-04-28 02:47:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 02:47:11,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-28 02:47:11,072 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 02:47:11,075 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 02:47:11,091 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 02:47:11,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-28 02:47:11,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 02:47:11,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-28 02:47:11,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-28 02:47:11,117 INFO L87 Difference]: Start difference. First operand has 19 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 02:47:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 02:47:11,291 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-04-28 02:47:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-28 02:47:11,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-28 02:47:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 02:47:11,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 02:47:11,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2022-04-28 02:47:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 02:47:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2022-04-28 02:47:11,308 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 32 transitions. [2022-04-28 02:47:11,358 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 02:47:11,362 INFO L225 Difference]: With dead ends: 25 [2022-04-28 02:47:11,362 INFO L226 Difference]: Without dead ends: 0 [2022-04-28 02:47:11,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-04-28 02:47:11,370 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 02:47:11,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 02:47:11,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-28 02:47:11,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-28 02:47:11,389 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 02:47:11,389 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-04-28 02:47:11,390 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-04-28 02:47:11,390 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-04-28 02:47:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 02:47:11,391 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 02:47:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 02:47:11,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 02:47:11,391 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 02:47:11,391 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-28 02:47:11,392 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-28 02:47:11,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 02:47:11,392 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 02:47:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 02:47:11,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 02:47:11,392 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 02:47:11,393 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 02:47:11,393 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 02:47:11,393 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) [2022-04-28 02:47:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-28 02:47:11,394 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-04-28 02:47:11,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 02:47:11,395 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-28 02:47:11,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 02:47:11,395 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-28 02:47:11,396 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 02:47:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 02:47:11,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 02:47:11,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 02:47:11,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 02:47:11,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-28 02:47:11,494 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-28 02:47:11,495 INFO L899 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-28 02:47:11,495 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-28 02:47:11,496 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-28 02:47:11,496 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-28 02:47:11,496 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-28 02:47:11,496 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: false [2022-04-28 02:47:11,496 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-28 02:47:11,497 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-28 02:47:11,500 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: false [2022-04-28 02:47:11,500 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 12 21) the Hoare annotation is: true [2022-04-28 02:47:11,500 INFO L895 garLoopResultBuilder]: At program point mainEXIT(lines 12 21) the Hoare annotation is: false [2022-04-28 02:47:11,500 INFO L895 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (= main_~x~0 0) [2022-04-28 02:47:11,500 INFO L895 garLoopResultBuilder]: At program point L17-1(lines 15 18) the Hoare annotation is: (= main_~x~0 0) [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 18) the Hoare annotation is: false [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point mainFINAL(lines 12 21) the Hoare annotation is: false [2022-04-28 02:47:11,501 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-04-28 02:47:11,501 INFO L895 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-04-28 02:47:11,504 INFO L356 BasicCegarLoop]: Path program histogram: [2] [2022-04-28 02:47:11,506 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 02:47:11,510 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-28 02:47:11,512 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-28 02:47:11,515 INFO L163 areAnnotationChecker]: CFG has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 02:47:11,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 02:47:11 BoogieIcfgContainer [2022-04-28 02:47:11,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 02:47:11,524 INFO L158 Benchmark]: Toolchain (without parser) took 1223.75ms. Allocated memory is still 169.9MB. Free memory was 121.4MB in the beginning and 96.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-04-28 02:47:11,524 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 169.9MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 02:47:11,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.85ms. Allocated memory is still 169.9MB. Free memory was 121.2MB in the beginning and 150.8MB in the end (delta: -29.5MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. [2022-04-28 02:47:11,525 INFO L158 Benchmark]: Boogie Preprocessor took 21.97ms. Allocated memory is still 169.9MB. Free memory was 150.8MB in the beginning and 149.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 02:47:11,525 INFO L158 Benchmark]: RCFGBuilder took 173.32ms. Allocated memory is still 169.9MB. Free memory was 149.1MB in the beginning and 139.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-04-28 02:47:11,525 INFO L158 Benchmark]: TraceAbstraction took 836.92ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 96.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2022-04-28 02:47:11,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 169.9MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.85ms. Allocated memory is still 169.9MB. Free memory was 121.2MB in the beginning and 150.8MB in the end (delta: -29.5MB). Peak memory consumption was 12.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.97ms. Allocated memory is still 169.9MB. Free memory was 150.8MB in the beginning and 149.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 173.32ms. Allocated memory is still 169.9MB. Free memory was 149.1MB in the beginning and 139.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 836.92ms. Allocated memory is still 169.9MB. Free memory was 138.7MB in the beginning and 96.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. 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: 7]: 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 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 31 PreInvPairs, 35 NumberOfFragments, 54 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 15]: Loop Invariant Derived loop invariant: x == 0 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 0 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) RESULT: Ultimate proved your program to be correct! [2022-04-28 02:47:11,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...