/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/test22-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:04:15,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:04:15,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:04:15,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:04:15,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:04:15,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:04:15,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:04:15,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:04:15,803 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:04:15,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:04:15,804 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:04:15,804 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:04:15,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:04:15,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:04:15,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:04:15,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:04:15,807 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:04:15,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:04:15,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:04:15,808 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:04:15,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:04:15,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:04:15,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:04:15,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:04:15,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:04:15,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:04:15,809 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:04:15,809 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:04:15,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:04:15,810 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:04:15,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:04:15,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:04:15,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:04:15,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:04:15,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:15,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:04:15,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:04:15,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:04:15,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:04:15,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:04:15,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:04:15,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:04:16,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:04:16,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:04:16,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:04:16,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:04:16,214 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:04:16,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test22-2.c [2022-10-16 14:04:16,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a283b24f3/b846fbbcba0d4b41a3d9307ef6ea1172/FLAG947948480 [2022-10-16 14:04:17,007 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:04:17,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-2.c [2022-10-16 14:04:17,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a283b24f3/b846fbbcba0d4b41a3d9307ef6ea1172/FLAG947948480 [2022-10-16 14:04:17,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a283b24f3/b846fbbcba0d4b41a3d9307ef6ea1172 [2022-10-16 14:04:17,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:04:17,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:04:17,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:17,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:04:17,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:04:17,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9f3ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17, skipping insertion in model container [2022-10-16 14:04:17,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:04:17,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:04:17,708 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-10-16 14:04:17,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:17,718 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:04:17,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-2.c[1029,1042] [2022-10-16 14:04:17,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:04:17,757 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:04:17,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17 WrapperNode [2022-10-16 14:04:17,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:04:17,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:17,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:04:17,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:04:17,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,802 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 89 [2022-10-16 14:04:17,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:04:17,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:04:17,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:04:17,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:04:17,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:04:17,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:04:17,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:04:17,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:04:17,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (1/1) ... [2022-10-16 14:04:17,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:04:17,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:17,882 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) [2022-10-16 14:04:17,900 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 [2022-10-16 14:04:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:04:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:04:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:04:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2022-10-16 14:04:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2022-10-16 14:04:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:04:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:04:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:04:18,038 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:04:18,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:04:18,256 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:04:18,271 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:04:18,271 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:04:18,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:18 BoogieIcfgContainer [2022-10-16 14:04:18,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:04:18,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:04:18,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:04:18,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:04:18,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:04:17" (1/3) ... [2022-10-16 14:04:18,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfedea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:18, skipping insertion in model container [2022-10-16 14:04:18,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:04:17" (2/3) ... [2022-10-16 14:04:18,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bfedea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:04:18, skipping insertion in model container [2022-10-16 14:04:18,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:04:18" (3/3) ... [2022-10-16 14:04:18,304 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-2.c [2022-10-16 14:04:18,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:04:18,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:04:18,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:04:18,488 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6d5fd959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:04:18,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:04:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 28 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:04:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:04:18,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:18,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:18,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash -931336081, now seen corresponding path program 1 times [2022-10-16 14:04:18,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:18,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851737900] [2022-10-16 14:04:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:18,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 14:04:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:04:19,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:19,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851737900] [2022-10-16 14:04:19,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851737900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:19,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:19,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-16 14:04:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342304335] [2022-10-16 14:04:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:19,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:04:19,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:19,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:04:19,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:04:19,806 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 28 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:04:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:20,226 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2022-10-16 14:04:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:04:20,229 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2022-10-16 14:04:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:20,240 INFO L225 Difference]: With dead ends: 88 [2022-10-16 14:04:20,240 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 14:04:20,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:04:20,250 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 142 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:20,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 199 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:04:20,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 14:04:20,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 34. [2022-10-16 14:04:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 14:04:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2022-10-16 14:04:20,307 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 24 [2022-10-16 14:04:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:20,308 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2022-10-16 14:04:20,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:04:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-10-16 14:04:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:04:20,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:20,311 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:20,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:04:20,312 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:20,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:20,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1740682707, now seen corresponding path program 1 times [2022-10-16 14:04:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:20,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612916387] [2022-10-16 14:04:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 14:04:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:04:20,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:20,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612916387] [2022-10-16 14:04:20,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612916387] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:20,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:20,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:04:20,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901530585] [2022-10-16 14:04:20,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:20,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:04:20,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:20,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:04:20,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:04:20,655 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 14:04:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:20,840 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-10-16 14:04:20,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:04:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-16 14:04:20,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:20,843 INFO L225 Difference]: With dead ends: 47 [2022-10-16 14:04:20,843 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:04:20,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:04:20,846 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 33 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:20,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 148 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:04:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:04:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2022-10-16 14:04:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 14:04:20,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2022-10-16 14:04:20,857 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 24 [2022-10-16 14:04:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:20,858 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2022-10-16 14:04:20,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 14:04:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-10-16 14:04:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 14:04:20,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:20,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:20,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:04:20,861 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:20,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:20,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1942453331, now seen corresponding path program 2 times [2022-10-16 14:04:20,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:20,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838468820] [2022-10-16 14:04:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:20,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:20,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 14:04:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:04:21,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:21,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838468820] [2022-10-16 14:04:21,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838468820] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:04:21,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685963394] [2022-10-16 14:04:21,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:04:21,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:04:21,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:04:21,111 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) [2022-10-16 14:04:21,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:04:21,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:04:21,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:04:21,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 14:04:21,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:04:21,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:04:21,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 14:04:21,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 14:04:21,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 14:04:21,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:04:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:04:21,625 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:04:21,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685963394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:21,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:04:21,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 19 [2022-10-16 14:04:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392333784] [2022-10-16 14:04:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:21,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:04:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:21,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:04:21,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:04:21,630 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 14:04:21,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:21,932 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2022-10-16 14:04:21,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:04:21,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-10-16 14:04:21,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:21,934 INFO L225 Difference]: With dead ends: 46 [2022-10-16 14:04:21,935 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:04:21,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:04:21,937 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 68 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:21,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 77 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:04:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:04:21,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 24. [2022-10-16 14:04:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:04:21,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-10-16 14:04:21,948 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 24 [2022-10-16 14:04:21,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:21,948 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-16 14:04:21,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 14:04:21,949 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-10-16 14:04:21,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:04:21,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:21,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:21,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 14:04:22,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:04:22,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:22,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:22,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1193352622, now seen corresponding path program 1 times [2022-10-16 14:04:22,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:22,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791144397] [2022-10-16 14:04:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:22,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:04:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:22,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:04:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 14:04:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:04:22,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:04:22,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:04:22,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791144397] [2022-10-16 14:04:22,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791144397] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:04:22,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:04:22,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:04:22,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982884303] [2022-10-16 14:04:22,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:04:22,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:04:22,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:04:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:04:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:04:22,489 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:04:22,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:04:22,703 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2022-10-16 14:04:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:04:22,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-10-16 14:04:22,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:04:22,705 INFO L225 Difference]: With dead ends: 71 [2022-10-16 14:04:22,705 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 14:04:22,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:04:22,707 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 45 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:04:22,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 191 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:04:22,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 14:04:22,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 34. [2022-10-16 14:04:22,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 14:04:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2022-10-16 14:04:22,720 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 25 [2022-10-16 14:04:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:04:22,721 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2022-10-16 14:04:22,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:04:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-10-16 14:04:22,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 14:04:22,723 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:04:22,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:04:22,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:04:22,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:04:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:04:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1873410992, now seen corresponding path program 1 times [2022-10-16 14:04:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:04:22,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485886162] [2022-10-16 14:04:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:04:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:04:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 14:04:22,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 14:04:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 14:04:22,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 14:04:22,802 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 14:04:22,804 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 14:04:22,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 14:04:22,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 14:04:22,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 14:04:22,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:04:22,813 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-10-16 14:04:22,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:04:22,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:04:22 BoogieIcfgContainer [2022-10-16 14:04:22,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:04:22,861 INFO L158 Benchmark]: Toolchain (without parser) took 5445.16ms. Allocated memory was 152.0MB in the beginning and 191.9MB in the end (delta: 39.8MB). Free memory was 125.8MB in the beginning and 83.5MB in the end (delta: 42.3MB). Peak memory consumption was 83.7MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,861 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:04:22,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 152.0MB. Free memory was 125.4MB in the beginning and 115.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.38ms. Allocated memory is still 152.0MB. Free memory was 115.4MB in the beginning and 113.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,863 INFO L158 Benchmark]: Boogie Preprocessor took 30.45ms. Allocated memory is still 152.0MB. Free memory was 113.7MB in the beginning and 112.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,863 INFO L158 Benchmark]: RCFGBuilder took 442.81ms. Allocated memory is still 152.0MB. Free memory was 112.3MB in the beginning and 100.1MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,864 INFO L158 Benchmark]: TraceAbstraction took 4574.63ms. Allocated memory was 152.0MB in the beginning and 191.9MB in the end (delta: 39.8MB). Free memory was 99.4MB in the beginning and 83.5MB in the end (delta: 15.9MB). Peak memory consumption was 57.5MB. Max. memory is 8.0GB. [2022-10-16 14:04:22,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 335.33ms. Allocated memory is still 152.0MB. Free memory was 125.4MB in the beginning and 115.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.38ms. Allocated memory is still 152.0MB. Free memory was 115.4MB in the beginning and 113.7MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.45ms. Allocated memory is still 152.0MB. Free memory was 113.7MB in the beginning and 112.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 442.81ms. Allocated memory is still 152.0MB. Free memory was 112.3MB in the beginning and 100.1MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4574.63ms. Allocated memory was 152.0MB in the beginning and 191.9MB in the end (delta: 39.8MB). Free memory was 99.4MB in the beginning and 83.5MB in the end (delta: 15.9MB). Peak memory consumption was 57.5MB. 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 - CounterExampleResult [Line: 39]: integer overflow possible integer overflow possible We found a FailurePath: [L11] struct dummy d1, d2; VAL [d1={4:0}, d2={5:0}] [L34] CALL init() [L15] d1.a = __VERIFIER_nondet_int() [L16] d1.b = __VERIFIER_nondet_int() [L18] d2.a = __VERIFIER_nondet_int() [L19] d2.b = __VERIFIER_nondet_int() [L34] RET init() [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={4:0}, d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={4:0}, d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={4:0}, pd1={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L35] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L24] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={5:0}, d1={4:0}, d2={5:0}] [L24] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L35] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, get_dummy()={5:0}, pd1={4:0}, pd2={4:0}] [L35] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L36] int i = __VERIFIER_nondet_int(); [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L37] EXPR (*pd2).a [L37] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=6, d1={4:0}, d2={5:0}, i=-3, pd1={4:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={4:0}, pd3={5:0}] [L37] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L38] int *pa = &pd1->a; [L39] EXPR pd3->a VAL [d1={4:0}, d2={5:0}, i=-3, pa={4:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}, pd3->a=-2147483639] [L39] pd3->a - 10 VAL [d1={4:0}, d2={5:0}, i=-3, pa={4:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}, pd3->a=-2147483639] - UnprovableResult [Line: 39]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 290 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 615 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 517 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 507 IncrementalHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 98 mSDtfsCounter, 507 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 90 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 146 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 6 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 51/60 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 RESULT: Ultimate proved your program to be incorrect! [2022-10-16 14:04:22,917 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...