/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loops/linear_search.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-08 08:59:37,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-08 08:59:37,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-08 08:59:37,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-08 08:59:37,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-08 08:59:37,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-08 08:59:37,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-08 08:59:37,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-08 08:59:37,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-08 08:59:37,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-08 08:59:37,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-08 08:59:37,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-08 08:59:37,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-08 08:59:37,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-08 08:59:37,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-08 08:59:37,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-08 08:59:37,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-08 08:59:37,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-08 08:59:37,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-08 08:59:37,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-08 08:59:37,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-08 08:59:37,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 08:59:37,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-08 08:59:37,750 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-08 08:59:37,751 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-08 08:59:38,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-08 08:59:38,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-08 08:59:38,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-08 08:59:38,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-08 08:59:38,027 INFO L275 PluginConnector]: CDTParser initialized [2022-04-08 08:59:38,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/linear_search.c [2022-04-08 08:59:38,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d06acbd/624acbf1f83b4f45819beb877dcdb59d/FLAG648e5079b [2022-04-08 08:59:38,511 INFO L306 CDTParser]: Found 1 translation units. [2022-04-08 08:59:38,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/linear_search.c [2022-04-08 08:59:38,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d06acbd/624acbf1f83b4f45819beb877dcdb59d/FLAG648e5079b [2022-04-08 08:59:38,941 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85d06acbd/624acbf1f83b4f45819beb877dcdb59d [2022-04-08 08:59:38,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-08 08:59:38,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-08 08:59:38,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-08 08:59:38,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-08 08:59:38,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-08 08:59:38,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 08:59:38" (1/1) ... [2022-04-08 08:59:38,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f16b12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:38, skipping insertion in model container [2022-04-08 08:59:38,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.04 08:59:38" (1/1) ... [2022-04-08 08:59:38,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-08 08:59:38,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-08 08:59:39,112 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/linear_search.c[383,396] [2022-04-08 08:59:39,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 08:59:39,169 INFO L203 MainTranslator]: Completed pre-run [2022-04-08 08:59:39,178 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/linear_search.c[383,396] [2022-04-08 08:59:39,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-08 08:59:39,199 INFO L208 MainTranslator]: Completed translation [2022-04-08 08:59:39,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39 WrapperNode [2022-04-08 08:59:39,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-08 08:59:39,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-08 08:59:39,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-08 08:59:39,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-08 08:59:39,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-08 08:59:39,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-08 08:59:39,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-08 08:59:39,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-08 08:59:39,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (1/1) ... [2022-04-08 08:59:39,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-08 08:59:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 08:59:39,276 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) [2022-04-08 08:59:39,279 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 [2022-04-08 08:59:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-08 08:59:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-08 08:59:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-08 08:59:39,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-08 08:59:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure linear_search [2022-04-08 08:59:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-08 08:59:39,312 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-08 08:59:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-08 08:59:39,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-08 08:59:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-08 08:59:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-08 08:59:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-08 08:59:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-08 08:59:39,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-04-08 08:59:39,314 INFO L130 BoogieDeclarations]: Found specification of procedure linear_search [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-08 08:59:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-08 08:59:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-08 08:59:39,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-08 08:59:39,377 INFO L234 CfgBuilder]: Building ICFG [2022-04-08 08:59:39,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-08 08:59:39,591 INFO L275 CfgBuilder]: Performing block encoding [2022-04-08 08:59:39,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-08 08:59:39,601 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-08 08:59:39,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 08:59:39 BoogieIcfgContainer [2022-04-08 08:59:39,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-08 08:59:39,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-08 08:59:39,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-08 08:59:39,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-08 08:59:39,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.04 08:59:38" (1/3) ... [2022-04-08 08:59:39,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca519cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 08:59:39, skipping insertion in model container [2022-04-08 08:59:39,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.04 08:59:39" (2/3) ... [2022-04-08 08:59:39,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca519cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.04 08:59:39, skipping insertion in model container [2022-04-08 08:59:39,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.04 08:59:39" (3/3) ... [2022-04-08 08:59:39,616 INFO L111 eAbstractionObserver]: Analyzing ICFG linear_search.c [2022-04-08 08:59:39,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-08 08:59:39,629 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-08 08:59:39,671 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-08 08:59:39,678 INFO L340 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 [2022-04-08 08:59:39,678 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-08 08:59:39,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-08 08:59:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-08 08:59:39,714 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 08:59:39,715 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 08:59:39,715 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 08:59:39,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 08:59:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1001129449, now seen corresponding path program 1 times [2022-04-08 08:59:39,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:39,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [476256976] [2022-04-08 08:59:39,742 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 08:59:39,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1001129449, now seen corresponding path program 2 times [2022-04-08 08:59:39,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 08:59:39,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111938497] [2022-04-08 08:59:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 08:59:39,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 08:59:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 08:59:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,028 INFO L290 TraceCheckUtils]: 0: Hoare triple {50#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {37#true} is VALID [2022-04-08 08:59:40,029 INFO L290 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2022-04-08 08:59:40,029 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #72#return; {37#true} is VALID [2022-04-08 08:59:40,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-08 08:59:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,044 INFO L290 TraceCheckUtils]: 0: Hoare triple {51#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {37#true} is VALID [2022-04-08 08:59:40,044 INFO L290 TraceCheckUtils]: 1: Hoare triple {37#true} assume true; {37#true} is VALID [2022-04-08 08:59:40,045 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {37#true} {37#true} #66#return; {37#true} is VALID [2022-04-08 08:59:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 08:59:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,057 INFO L290 TraceCheckUtils]: 0: Hoare triple {37#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {37#true} is VALID [2022-04-08 08:59:40,058 INFO L290 TraceCheckUtils]: 1: Hoare triple {37#true} assume !true; {38#false} is VALID [2022-04-08 08:59:40,058 INFO L290 TraceCheckUtils]: 2: Hoare triple {38#false} assume ~j~0 % 4294967296 < ~SIZE~0 % 4294967296;#res := 1; {38#false} is VALID [2022-04-08 08:59:40,058 INFO L290 TraceCheckUtils]: 3: Hoare triple {38#false} assume true; {38#false} is VALID [2022-04-08 08:59:40,058 INFO L284 TraceCheckUtils]: 4: Hoare quadruple {38#false} {37#true} #68#return; {38#false} is VALID [2022-04-08 08:59:40,060 INFO L272 TraceCheckUtils]: 0: Hoare triple {37#true} call ULTIMATE.init(); {50#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 08:59:40,060 INFO L290 TraceCheckUtils]: 1: Hoare triple {50#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {37#true} is VALID [2022-04-08 08:59:40,061 INFO L290 TraceCheckUtils]: 2: Hoare triple {37#true} assume true; {37#true} is VALID [2022-04-08 08:59:40,061 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {37#true} {37#true} #72#return; {37#true} is VALID [2022-04-08 08:59:40,061 INFO L272 TraceCheckUtils]: 4: Hoare triple {37#true} call #t~ret10 := main(); {37#true} is VALID [2022-04-08 08:59:40,061 INFO L290 TraceCheckUtils]: 5: Hoare triple {37#true} ~SIZE~0 := 1 + (if #t~nondet7 % 4294967296 < 0 && 0 != #t~nondet7 % 4294967296 % 2 then 1 + #t~nondet7 % 4294967296 / 2 else #t~nondet7 % 4294967296 / 2);havoc #t~nondet7; {37#true} is VALID [2022-04-08 08:59:40,061 INFO L290 TraceCheckUtils]: 6: Hoare triple {37#true} assume ~SIZE~0 % 4294967296 > 1 && ~SIZE~0 % 4294967296 < ~MAX~0 % 4294967296;call #t~malloc8.base, #t~malloc8.offset := #Ultimate.allocOnHeap(4 * (~SIZE~0 % 4294967296)); {37#true} is VALID [2022-04-08 08:59:40,069 INFO L272 TraceCheckUtils]: 7: Hoare triple {37#true} call #Ultimate.meminit(#t~malloc8.base, #t~malloc8.offset, ~SIZE~0 % 4294967296, 4, 4 * (~SIZE~0 % 4294967296)); {51#(= |#memory_int| |old(#memory_int)|)} is VALID [2022-04-08 08:59:40,069 INFO L290 TraceCheckUtils]: 8: Hoare triple {51#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {37#true} is VALID [2022-04-08 08:59:40,069 INFO L290 TraceCheckUtils]: 9: Hoare triple {37#true} assume true; {37#true} is VALID [2022-04-08 08:59:40,070 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {37#true} {37#true} #66#return; {37#true} is VALID [2022-04-08 08:59:40,070 INFO L290 TraceCheckUtils]: 11: Hoare triple {37#true} ~a~0.base, ~a~0.offset := #t~malloc8.base, #t~malloc8.offset;call write~int(3, ~a~0.base, ~a~0.offset + 4 * ((if ~SIZE~0 % 4294967296 < 0 && 0 != ~SIZE~0 % 4294967296 % 2 then 1 + ~SIZE~0 % 4294967296 / 2 else ~SIZE~0 % 4294967296 / 2) % 4294967296), 4); {37#true} is VALID [2022-04-08 08:59:40,070 INFO L272 TraceCheckUtils]: 12: Hoare triple {37#true} call #t~ret9 := linear_search(~a~0.base, ~a~0.offset, (if ~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then ~SIZE~0 % 4294967296 % 4294967296 else ~SIZE~0 % 4294967296 % 4294967296 - 4294967296), 3); {37#true} is VALID [2022-04-08 08:59:40,070 INFO L290 TraceCheckUtils]: 13: Hoare triple {37#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {37#true} is VALID [2022-04-08 08:59:40,074 INFO L290 TraceCheckUtils]: 14: Hoare triple {37#true} assume !true; {38#false} is VALID [2022-04-08 08:59:40,074 INFO L290 TraceCheckUtils]: 15: Hoare triple {38#false} assume ~j~0 % 4294967296 < ~SIZE~0 % 4294967296;#res := 1; {38#false} is VALID [2022-04-08 08:59:40,074 INFO L290 TraceCheckUtils]: 16: Hoare triple {38#false} assume true; {38#false} is VALID [2022-04-08 08:59:40,075 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {38#false} {37#true} #68#return; {38#false} is VALID [2022-04-08 08:59:40,075 INFO L290 TraceCheckUtils]: 18: Hoare triple {38#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {38#false} is VALID [2022-04-08 08:59:40,075 INFO L272 TraceCheckUtils]: 19: Hoare triple {38#false} call __VERIFIER_assert(#t~ret9); {38#false} is VALID [2022-04-08 08:59:40,075 INFO L290 TraceCheckUtils]: 20: Hoare triple {38#false} ~cond := #in~cond; {38#false} is VALID [2022-04-08 08:59:40,075 INFO L290 TraceCheckUtils]: 21: Hoare triple {38#false} assume 0 == ~cond; {38#false} is VALID [2022-04-08 08:59:40,076 INFO L290 TraceCheckUtils]: 22: Hoare triple {38#false} assume !false; {38#false} is VALID [2022-04-08 08:59:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 08:59:40,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 08:59:40,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111938497] [2022-04-08 08:59:40,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111938497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:40,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:40,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 08:59:40,081 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 08:59:40,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [476256976] [2022-04-08 08:59:40,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [476256976] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:40,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:40,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-08 08:59:40,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255642158] [2022-04-08 08:59:40,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 08:59:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-08 08:59:40,095 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 08:59:40,098 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:40,142 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-08 08:59:40,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:40,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-08 08:59:40,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-08 08:59:40,172 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 23 states have internal predecessors, (30), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:40,459 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2022-04-08 08:59:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-08 08:59:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-08 08:59:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 08:59:40,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2022-04-08 08:59:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2022-04-08 08:59:40,476 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 60 transitions. [2022-04-08 08:59:40,538 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:40,546 INFO L225 Difference]: With dead ends: 52 [2022-04-08 08:59:40,546 INFO L226 Difference]: Without dead ends: 27 [2022-04-08 08:59:40,550 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-08 08:59:40,555 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 08:59:40,556 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 39 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 08:59:40,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-08 08:59:40,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-08 08:59:40,596 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 08:59:40,597 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:40,598 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:40,598 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:40,606 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-08 08:59:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 08:59:40,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:40,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:40,608 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-08 08:59:40,610 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-08 08:59:40,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:40,614 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-04-08 08:59:40,614 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 08:59:40,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:40,615 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:40,615 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 08:59:40,615 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 08:59:40,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-04-08 08:59:40,625 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 23 [2022-04-08 08:59:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 08:59:40,626 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-04-08 08:59:40,626 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,626 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 27 states and 30 transitions. [2022-04-08 08:59:40,663 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-04-08 08:59:40,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-08 08:59:40,664 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 08:59:40,665 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 08:59:40,665 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-08 08:59:40,668 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 08:59:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 08:59:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2092261110, now seen corresponding path program 1 times [2022-04-08 08:59:40,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:40,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [578668091] [2022-04-08 08:59:40,672 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 08:59:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2092261110, now seen corresponding path program 2 times [2022-04-08 08:59:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 08:59:40,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128661027] [2022-04-08 08:59:40,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 08:59:40,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 08:59:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 08:59:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,805 INFO L290 TraceCheckUtils]: 0: Hoare triple {287#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {269#true} is VALID [2022-04-08 08:59:40,806 INFO L290 TraceCheckUtils]: 1: Hoare triple {269#true} assume true; {269#true} is VALID [2022-04-08 08:59:40,806 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {269#true} {269#true} #72#return; {269#true} is VALID [2022-04-08 08:59:40,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-08 08:59:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,818 INFO L290 TraceCheckUtils]: 0: Hoare triple {288#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {269#true} is VALID [2022-04-08 08:59:40,818 INFO L290 TraceCheckUtils]: 1: Hoare triple {269#true} assume true; {269#true} is VALID [2022-04-08 08:59:40,819 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {269#true} {269#true} #66#return; {269#true} is VALID [2022-04-08 08:59:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 08:59:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:40,860 INFO L290 TraceCheckUtils]: 0: Hoare triple {269#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {269#true} is VALID [2022-04-08 08:59:40,861 INFO L290 TraceCheckUtils]: 1: Hoare triple {269#true} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {269#true} is VALID [2022-04-08 08:59:40,861 INFO L290 TraceCheckUtils]: 2: Hoare triple {269#true} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {269#true} is VALID [2022-04-08 08:59:40,861 INFO L290 TraceCheckUtils]: 3: Hoare triple {269#true} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {269#true} is VALID [2022-04-08 08:59:40,862 INFO L290 TraceCheckUtils]: 4: Hoare triple {269#true} assume ~j~0 % 4294967296 < ~SIZE~0 % 4294967296;#res := 1; {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} is VALID [2022-04-08 08:59:40,862 INFO L290 TraceCheckUtils]: 5: Hoare triple {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} assume true; {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} is VALID [2022-04-08 08:59:40,864 INFO L284 TraceCheckUtils]: 6: Hoare quadruple {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} {269#true} #68#return; {284#(= |main_#t~ret9| 1)} is VALID [2022-04-08 08:59:40,865 INFO L272 TraceCheckUtils]: 0: Hoare triple {269#true} call ULTIMATE.init(); {287#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 08:59:40,865 INFO L290 TraceCheckUtils]: 1: Hoare triple {287#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {269#true} is VALID [2022-04-08 08:59:40,865 INFO L290 TraceCheckUtils]: 2: Hoare triple {269#true} assume true; {269#true} is VALID [2022-04-08 08:59:40,866 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {269#true} {269#true} #72#return; {269#true} is VALID [2022-04-08 08:59:40,866 INFO L272 TraceCheckUtils]: 4: Hoare triple {269#true} call #t~ret10 := main(); {269#true} is VALID [2022-04-08 08:59:40,866 INFO L290 TraceCheckUtils]: 5: Hoare triple {269#true} ~SIZE~0 := 1 + (if #t~nondet7 % 4294967296 < 0 && 0 != #t~nondet7 % 4294967296 % 2 then 1 + #t~nondet7 % 4294967296 / 2 else #t~nondet7 % 4294967296 / 2);havoc #t~nondet7; {269#true} is VALID [2022-04-08 08:59:40,866 INFO L290 TraceCheckUtils]: 6: Hoare triple {269#true} assume ~SIZE~0 % 4294967296 > 1 && ~SIZE~0 % 4294967296 < ~MAX~0 % 4294967296;call #t~malloc8.base, #t~malloc8.offset := #Ultimate.allocOnHeap(4 * (~SIZE~0 % 4294967296)); {269#true} is VALID [2022-04-08 08:59:40,867 INFO L272 TraceCheckUtils]: 7: Hoare triple {269#true} call #Ultimate.meminit(#t~malloc8.base, #t~malloc8.offset, ~SIZE~0 % 4294967296, 4, 4 * (~SIZE~0 % 4294967296)); {288#(= |#memory_int| |old(#memory_int)|)} is VALID [2022-04-08 08:59:40,868 INFO L290 TraceCheckUtils]: 8: Hoare triple {288#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {269#true} is VALID [2022-04-08 08:59:40,868 INFO L290 TraceCheckUtils]: 9: Hoare triple {269#true} assume true; {269#true} is VALID [2022-04-08 08:59:40,868 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {269#true} {269#true} #66#return; {269#true} is VALID [2022-04-08 08:59:40,868 INFO L290 TraceCheckUtils]: 11: Hoare triple {269#true} ~a~0.base, ~a~0.offset := #t~malloc8.base, #t~malloc8.offset;call write~int(3, ~a~0.base, ~a~0.offset + 4 * ((if ~SIZE~0 % 4294967296 < 0 && 0 != ~SIZE~0 % 4294967296 % 2 then 1 + ~SIZE~0 % 4294967296 / 2 else ~SIZE~0 % 4294967296 / 2) % 4294967296), 4); {269#true} is VALID [2022-04-08 08:59:40,868 INFO L272 TraceCheckUtils]: 12: Hoare triple {269#true} call #t~ret9 := linear_search(~a~0.base, ~a~0.offset, (if ~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then ~SIZE~0 % 4294967296 % 4294967296 else ~SIZE~0 % 4294967296 % 4294967296 - 4294967296), 3); {269#true} is VALID [2022-04-08 08:59:40,869 INFO L290 TraceCheckUtils]: 13: Hoare triple {269#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {269#true} is VALID [2022-04-08 08:59:40,869 INFO L290 TraceCheckUtils]: 14: Hoare triple {269#true} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {269#true} is VALID [2022-04-08 08:59:40,869 INFO L290 TraceCheckUtils]: 15: Hoare triple {269#true} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {269#true} is VALID [2022-04-08 08:59:40,869 INFO L290 TraceCheckUtils]: 16: Hoare triple {269#true} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {269#true} is VALID [2022-04-08 08:59:40,870 INFO L290 TraceCheckUtils]: 17: Hoare triple {269#true} assume ~j~0 % 4294967296 < ~SIZE~0 % 4294967296;#res := 1; {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} is VALID [2022-04-08 08:59:40,870 INFO L290 TraceCheckUtils]: 18: Hoare triple {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} assume true; {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} is VALID [2022-04-08 08:59:40,872 INFO L284 TraceCheckUtils]: 19: Hoare quadruple {289#(and (<= |linear_search_#res| 1) (<= 1 |linear_search_#res|))} {269#true} #68#return; {284#(= |main_#t~ret9| 1)} is VALID [2022-04-08 08:59:40,873 INFO L290 TraceCheckUtils]: 20: Hoare triple {284#(= |main_#t~ret9| 1)} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {284#(= |main_#t~ret9| 1)} is VALID [2022-04-08 08:59:40,873 INFO L272 TraceCheckUtils]: 21: Hoare triple {284#(= |main_#t~ret9| 1)} call __VERIFIER_assert(#t~ret9); {285#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2022-04-08 08:59:40,874 INFO L290 TraceCheckUtils]: 22: Hoare triple {285#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {286#(= __VERIFIER_assert_~cond 1)} is VALID [2022-04-08 08:59:40,874 INFO L290 TraceCheckUtils]: 23: Hoare triple {286#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {270#false} is VALID [2022-04-08 08:59:40,875 INFO L290 TraceCheckUtils]: 24: Hoare triple {270#false} assume !false; {270#false} is VALID [2022-04-08 08:59:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 08:59:40,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 08:59:40,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128661027] [2022-04-08 08:59:40,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128661027] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:40,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:40,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 08:59:40,876 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 08:59:40,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [578668091] [2022-04-08 08:59:40,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [578668091] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:40,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:40,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 08:59:40,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517337617] [2022-04-08 08:59:40,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 08:59:40,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-04-08 08:59:40,878 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 08:59:40,878 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:40,901 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:40,902 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-08 08:59:40,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:40,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-08 08:59:40,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-08 08:59:40,903 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:41,327 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-04-08 08:59:41,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-08 08:59:41,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-04-08 08:59:41,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 08:59:41,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-04-08 08:59:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-04-08 08:59:41,336 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 37 transitions. [2022-04-08 08:59:41,378 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:41,380 INFO L225 Difference]: With dead ends: 35 [2022-04-08 08:59:41,380 INFO L226 Difference]: Without dead ends: 27 [2022-04-08 08:59:41,381 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-04-08 08:59:41,383 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 08:59:41,387 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 08:59:41,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-04-08 08:59:41,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-04-08 08:59:41,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 08:59:41,401 INFO L82 GeneralOperation]: Start isEquivalent. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:41,402 INFO L74 IsIncluded]: Start isIncluded. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:41,407 INFO L87 Difference]: Start difference. First operand 27 states. Second operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:41,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:41,408 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-04-08 08:59:41,408 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-08 08:59:41,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:41,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:41,409 INFO L74 IsIncluded]: Start isIncluded. First operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-08 08:59:41,409 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 27 states. [2022-04-08 08:59:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:41,411 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-04-08 08:59:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-08 08:59:41,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:41,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:41,411 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 08:59:41,411 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 08:59:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:41,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-04-08 08:59:41,413 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 25 [2022-04-08 08:59:41,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 08:59:41,413 INFO L478 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-04-08 08:59:41,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:41,413 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 27 states and 29 transitions. [2022-04-08 08:59:41,444 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-04-08 08:59:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-04-08 08:59:41,446 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 08:59:41,446 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 08:59:41,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-08 08:59:41,447 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 08:59:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 08:59:41,447 INFO L85 PathProgramCache]: Analyzing trace with hash -349450775, now seen corresponding path program 1 times [2022-04-08 08:59:41,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:41,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [869338889] [2022-04-08 08:59:41,448 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-08 08:59:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash -349450775, now seen corresponding path program 2 times [2022-04-08 08:59:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 08:59:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547031332] [2022-04-08 08:59:41,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 08:59:41,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 08:59:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 08:59:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:41,572 INFO L290 TraceCheckUtils]: 0: Hoare triple {495#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {479#true} is VALID [2022-04-08 08:59:41,572 INFO L290 TraceCheckUtils]: 1: Hoare triple {479#true} assume true; {479#true} is VALID [2022-04-08 08:59:41,572 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {479#true} {479#true} #72#return; {479#true} is VALID [2022-04-08 08:59:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-08 08:59:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:41,584 INFO L290 TraceCheckUtils]: 0: Hoare triple {496#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {479#true} is VALID [2022-04-08 08:59:41,584 INFO L290 TraceCheckUtils]: 1: Hoare triple {479#true} assume true; {479#true} is VALID [2022-04-08 08:59:41,585 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {479#true} {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} #66#return; {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} is VALID [2022-04-08 08:59:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 08:59:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:41,688 INFO L290 TraceCheckUtils]: 0: Hoare triple {479#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,688 INFO L290 TraceCheckUtils]: 1: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {498#(or (and (<= linear_search_~j~0 0) (< 0 (+ (div linear_search_~j~0 4294967296) 1))) (not |linear_search_#t~short5|))} is VALID [2022-04-08 08:59:41,689 INFO L290 TraceCheckUtils]: 2: Hoare triple {498#(or (and (<= linear_search_~j~0 0) (< 0 (+ (div linear_search_~j~0 4294967296) 1))) (not |linear_search_#t~short5|))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,690 INFO L290 TraceCheckUtils]: 3: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,691 INFO L290 TraceCheckUtils]: 4: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} is VALID [2022-04-08 08:59:41,691 INFO L290 TraceCheckUtils]: 5: Hoare triple {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} assume true; {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} is VALID [2022-04-08 08:59:41,693 INFO L284 TraceCheckUtils]: 6: Hoare quadruple {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} #68#return; {480#false} is VALID [2022-04-08 08:59:41,694 INFO L272 TraceCheckUtils]: 0: Hoare triple {479#true} call ULTIMATE.init(); {495#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 08:59:41,695 INFO L290 TraceCheckUtils]: 1: Hoare triple {495#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {479#true} is VALID [2022-04-08 08:59:41,695 INFO L290 TraceCheckUtils]: 2: Hoare triple {479#true} assume true; {479#true} is VALID [2022-04-08 08:59:41,695 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {479#true} {479#true} #72#return; {479#true} is VALID [2022-04-08 08:59:41,695 INFO L272 TraceCheckUtils]: 4: Hoare triple {479#true} call #t~ret10 := main(); {479#true} is VALID [2022-04-08 08:59:41,695 INFO L290 TraceCheckUtils]: 5: Hoare triple {479#true} ~SIZE~0 := 1 + (if #t~nondet7 % 4294967296 < 0 && 0 != #t~nondet7 % 4294967296 % 2 then 1 + #t~nondet7 % 4294967296 / 2 else #t~nondet7 % 4294967296 / 2);havoc #t~nondet7; {479#true} is VALID [2022-04-08 08:59:41,696 INFO L290 TraceCheckUtils]: 6: Hoare triple {479#true} assume ~SIZE~0 % 4294967296 > 1 && ~SIZE~0 % 4294967296 < ~MAX~0 % 4294967296;call #t~malloc8.base, #t~malloc8.offset := #Ultimate.allocOnHeap(4 * (~SIZE~0 % 4294967296)); {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} is VALID [2022-04-08 08:59:41,698 INFO L272 TraceCheckUtils]: 7: Hoare triple {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} call #Ultimate.meminit(#t~malloc8.base, #t~malloc8.offset, ~SIZE~0 % 4294967296, 4, 4 * (~SIZE~0 % 4294967296)); {496#(= |#memory_int| |old(#memory_int)|)} is VALID [2022-04-08 08:59:41,698 INFO L290 TraceCheckUtils]: 8: Hoare triple {496#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {479#true} is VALID [2022-04-08 08:59:41,698 INFO L290 TraceCheckUtils]: 9: Hoare triple {479#true} assume true; {479#true} is VALID [2022-04-08 08:59:41,699 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {479#true} {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} #66#return; {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} is VALID [2022-04-08 08:59:41,700 INFO L290 TraceCheckUtils]: 11: Hoare triple {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} ~a~0.base, ~a~0.offset := #t~malloc8.base, #t~malloc8.offset;call write~int(3, ~a~0.base, ~a~0.offset + 4 * ((if ~SIZE~0 % 4294967296 < 0 && 0 != ~SIZE~0 % 4294967296 % 2 then 1 + ~SIZE~0 % 4294967296 / 2 else ~SIZE~0 % 4294967296 / 2) % 4294967296), 4); {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} is VALID [2022-04-08 08:59:41,700 INFO L272 TraceCheckUtils]: 12: Hoare triple {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} call #t~ret9 := linear_search(~a~0.base, ~a~0.offset, (if ~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then ~SIZE~0 % 4294967296 % 4294967296 else ~SIZE~0 % 4294967296 % 4294967296 - 4294967296), 3); {479#true} is VALID [2022-04-08 08:59:41,701 INFO L290 TraceCheckUtils]: 13: Hoare triple {479#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,701 INFO L290 TraceCheckUtils]: 14: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {498#(or (and (<= linear_search_~j~0 0) (< 0 (+ (div linear_search_~j~0 4294967296) 1))) (not |linear_search_#t~short5|))} is VALID [2022-04-08 08:59:41,702 INFO L290 TraceCheckUtils]: 15: Hoare triple {498#(or (and (<= linear_search_~j~0 0) (< 0 (+ (div linear_search_~j~0 4294967296) 1))) (not |linear_search_#t~short5|))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,704 INFO L290 TraceCheckUtils]: 16: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:41,705 INFO L290 TraceCheckUtils]: 17: Hoare triple {497#(and (<= linear_search_~j~0 0) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} is VALID [2022-04-08 08:59:41,706 INFO L290 TraceCheckUtils]: 18: Hoare triple {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} assume true; {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} is VALID [2022-04-08 08:59:41,707 INFO L284 TraceCheckUtils]: 19: Hoare quadruple {499#(<= ~SIZE~0 (* (div ~SIZE~0 4294967296) 4294967296))} {484#(<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0)} #68#return; {480#false} is VALID [2022-04-08 08:59:41,707 INFO L290 TraceCheckUtils]: 20: Hoare triple {480#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {480#false} is VALID [2022-04-08 08:59:41,708 INFO L272 TraceCheckUtils]: 21: Hoare triple {480#false} call __VERIFIER_assert(#t~ret9); {480#false} is VALID [2022-04-08 08:59:41,708 INFO L290 TraceCheckUtils]: 22: Hoare triple {480#false} ~cond := #in~cond; {480#false} is VALID [2022-04-08 08:59:41,708 INFO L290 TraceCheckUtils]: 23: Hoare triple {480#false} assume 0 == ~cond; {480#false} is VALID [2022-04-08 08:59:41,708 INFO L290 TraceCheckUtils]: 24: Hoare triple {480#false} assume !false; {480#false} is VALID [2022-04-08 08:59:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 08:59:41,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 08:59:41,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547031332] [2022-04-08 08:59:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547031332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:41,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 08:59:41,709 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 08:59:41,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [869338889] [2022-04-08 08:59:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [869338889] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:41,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-08 08:59:41,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287869492] [2022-04-08 08:59:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 08:59:41,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-04-08 08:59:41,710 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 08:59:41,711 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 08:59:41,741 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:41,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-08 08:59:41,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-08 08:59:41,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-04-08 08:59:41,743 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 08:59:46,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-08 08:59:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:46,893 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-04-08 08:59:46,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-04-08 08:59:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-04-08 08:59:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 08:59:46,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 08:59:46,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 44 transitions. [2022-04-08 08:59:46,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 08:59:46,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 44 transitions. [2022-04-08 08:59:46,898 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 13 states and 44 transitions. [2022-04-08 08:59:46,965 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:46,966 INFO L225 Difference]: With dead ends: 40 [2022-04-08 08:59:46,966 INFO L226 Difference]: Without dead ends: 31 [2022-04-08 08:59:46,967 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-04-08 08:59:46,968 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 65 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-08 08:59:46,968 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 38 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 89 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-08 08:59:46,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-04-08 08:59:47,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-04-08 08:59:47,006 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 08:59:47,007 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,007 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,007 INFO L87 Difference]: Start difference. First operand 31 states. Second operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:47,009 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-04-08 08:59:47,009 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-04-08 08:59:47,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:47,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:47,010 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 31 states. [2022-04-08 08:59:47,010 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 31 states. [2022-04-08 08:59:47,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:47,012 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-04-08 08:59:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-04-08 08:59:47,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:47,012 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:47,012 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 08:59:47,013 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 08:59:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-04-08 08:59:47,014 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2022-04-08 08:59:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 08:59:47,015 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-04-08 08:59:47,015 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-08 08:59:47,015 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 30 states and 33 transitions. [2022-04-08 08:59:47,071 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:47,071 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-04-08 08:59:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-08 08:59:47,076 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 08:59:47,076 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 08:59:47,077 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-08 08:59:47,077 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 08:59:47,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 08:59:47,077 INFO L85 PathProgramCache]: Analyzing trace with hash 33102019, now seen corresponding path program 1 times [2022-04-08 08:59:47,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:47,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [863456238] [2022-04-08 08:59:47,092 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-08 08:59:47,092 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 08:59:47,092 INFO L85 PathProgramCache]: Analyzing trace with hash 33102019, now seen corresponding path program 2 times [2022-04-08 08:59:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 08:59:47,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458682745] [2022-04-08 08:59:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 08:59:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 08:59:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:47,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 08:59:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:47,171 INFO L290 TraceCheckUtils]: 0: Hoare triple {740#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {721#true} is VALID [2022-04-08 08:59:47,172 INFO L290 TraceCheckUtils]: 1: Hoare triple {721#true} assume true; {721#true} is VALID [2022-04-08 08:59:47,172 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {721#true} {721#true} #72#return; {721#true} is VALID [2022-04-08 08:59:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-08 08:59:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:47,183 INFO L290 TraceCheckUtils]: 0: Hoare triple {741#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {721#true} is VALID [2022-04-08 08:59:47,183 INFO L290 TraceCheckUtils]: 1: Hoare triple {721#true} assume true; {721#true} is VALID [2022-04-08 08:59:47,183 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {721#true} {721#true} #66#return; {721#true} is VALID [2022-04-08 08:59:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 08:59:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:47,256 INFO L290 TraceCheckUtils]: 0: Hoare triple {721#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,257 INFO L290 TraceCheckUtils]: 1: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,258 INFO L290 TraceCheckUtils]: 2: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,259 INFO L290 TraceCheckUtils]: 3: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} assume !!#t~short5;havoc #t~mem4;havoc #t~short5;#t~post6 := ~j~0;~j~0 := 1 + #t~post6;havoc #t~post6; {743#(and (<= linear_search_~j~0 1) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:47,268 INFO L290 TraceCheckUtils]: 4: Hoare triple {743#(and (<= linear_search_~j~0 1) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume 20 == ~j~0 % 4294967296;~j~0 := -1; {722#false} is VALID [2022-04-08 08:59:47,268 INFO L290 TraceCheckUtils]: 5: Hoare triple {722#false} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {722#false} is VALID [2022-04-08 08:59:47,268 INFO L290 TraceCheckUtils]: 6: Hoare triple {722#false} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {722#false} is VALID [2022-04-08 08:59:47,268 INFO L290 TraceCheckUtils]: 7: Hoare triple {722#false} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {722#false} is VALID [2022-04-08 08:59:47,269 INFO L290 TraceCheckUtils]: 8: Hoare triple {722#false} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {722#false} is VALID [2022-04-08 08:59:47,269 INFO L290 TraceCheckUtils]: 9: Hoare triple {722#false} assume true; {722#false} is VALID [2022-04-08 08:59:47,269 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {722#false} {721#true} #68#return; {722#false} is VALID [2022-04-08 08:59:47,270 INFO L272 TraceCheckUtils]: 0: Hoare triple {721#true} call ULTIMATE.init(); {740#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 08:59:47,270 INFO L290 TraceCheckUtils]: 1: Hoare triple {740#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {721#true} is VALID [2022-04-08 08:59:47,270 INFO L290 TraceCheckUtils]: 2: Hoare triple {721#true} assume true; {721#true} is VALID [2022-04-08 08:59:47,270 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {721#true} {721#true} #72#return; {721#true} is VALID [2022-04-08 08:59:47,270 INFO L272 TraceCheckUtils]: 4: Hoare triple {721#true} call #t~ret10 := main(); {721#true} is VALID [2022-04-08 08:59:47,271 INFO L290 TraceCheckUtils]: 5: Hoare triple {721#true} ~SIZE~0 := 1 + (if #t~nondet7 % 4294967296 < 0 && 0 != #t~nondet7 % 4294967296 % 2 then 1 + #t~nondet7 % 4294967296 / 2 else #t~nondet7 % 4294967296 / 2);havoc #t~nondet7; {721#true} is VALID [2022-04-08 08:59:47,271 INFO L290 TraceCheckUtils]: 6: Hoare triple {721#true} assume ~SIZE~0 % 4294967296 > 1 && ~SIZE~0 % 4294967296 < ~MAX~0 % 4294967296;call #t~malloc8.base, #t~malloc8.offset := #Ultimate.allocOnHeap(4 * (~SIZE~0 % 4294967296)); {721#true} is VALID [2022-04-08 08:59:47,272 INFO L272 TraceCheckUtils]: 7: Hoare triple {721#true} call #Ultimate.meminit(#t~malloc8.base, #t~malloc8.offset, ~SIZE~0 % 4294967296, 4, 4 * (~SIZE~0 % 4294967296)); {741#(= |#memory_int| |old(#memory_int)|)} is VALID [2022-04-08 08:59:47,272 INFO L290 TraceCheckUtils]: 8: Hoare triple {741#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {721#true} is VALID [2022-04-08 08:59:47,272 INFO L290 TraceCheckUtils]: 9: Hoare triple {721#true} assume true; {721#true} is VALID [2022-04-08 08:59:47,272 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {721#true} {721#true} #66#return; {721#true} is VALID [2022-04-08 08:59:47,273 INFO L290 TraceCheckUtils]: 11: Hoare triple {721#true} ~a~0.base, ~a~0.offset := #t~malloc8.base, #t~malloc8.offset;call write~int(3, ~a~0.base, ~a~0.offset + 4 * ((if ~SIZE~0 % 4294967296 < 0 && 0 != ~SIZE~0 % 4294967296 % 2 then 1 + ~SIZE~0 % 4294967296 / 2 else ~SIZE~0 % 4294967296 / 2) % 4294967296), 4); {721#true} is VALID [2022-04-08 08:59:47,273 INFO L272 TraceCheckUtils]: 12: Hoare triple {721#true} call #t~ret9 := linear_search(~a~0.base, ~a~0.offset, (if ~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then ~SIZE~0 % 4294967296 % 4294967296 else ~SIZE~0 % 4294967296 % 4294967296 - 4294967296), 3); {721#true} is VALID [2022-04-08 08:59:47,273 INFO L290 TraceCheckUtils]: 13: Hoare triple {721#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,274 INFO L290 TraceCheckUtils]: 14: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,275 INFO L290 TraceCheckUtils]: 15: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:47,275 INFO L290 TraceCheckUtils]: 16: Hoare triple {742#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} assume !!#t~short5;havoc #t~mem4;havoc #t~short5;#t~post6 := ~j~0;~j~0 := 1 + #t~post6;havoc #t~post6; {743#(and (<= linear_search_~j~0 1) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} is VALID [2022-04-08 08:59:47,276 INFO L290 TraceCheckUtils]: 17: Hoare triple {743#(and (<= linear_search_~j~0 1) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0)))} assume 20 == ~j~0 % 4294967296;~j~0 := -1; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 18: Hoare triple {722#false} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 19: Hoare triple {722#false} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 20: Hoare triple {722#false} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 21: Hoare triple {722#false} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 22: Hoare triple {722#false} assume true; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {722#false} {721#true} #68#return; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L290 TraceCheckUtils]: 24: Hoare triple {722#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {722#false} is VALID [2022-04-08 08:59:47,277 INFO L272 TraceCheckUtils]: 25: Hoare triple {722#false} call __VERIFIER_assert(#t~ret9); {722#false} is VALID [2022-04-08 08:59:47,278 INFO L290 TraceCheckUtils]: 26: Hoare triple {722#false} ~cond := #in~cond; {722#false} is VALID [2022-04-08 08:59:47,278 INFO L290 TraceCheckUtils]: 27: Hoare triple {722#false} assume 0 == ~cond; {722#false} is VALID [2022-04-08 08:59:47,278 INFO L290 TraceCheckUtils]: 28: Hoare triple {722#false} assume !false; {722#false} is VALID [2022-04-08 08:59:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 08:59:47,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 08:59:47,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458682745] [2022-04-08 08:59:47,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458682745] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:47,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:47,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 08:59:47,279 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-08 08:59:47,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [863456238] [2022-04-08 08:59:47,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [863456238] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-08 08:59:47,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-08 08:59:47,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-08 08:59:47,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612425516] [2022-04-08 08:59:47,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-08 08:59:47,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-04-08 08:59:47,280 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-08 08:59:47,281 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:47,305 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:47,305 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-08 08:59:47,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-08 08:59:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-08 08:59:47,306 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:47,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:47,744 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-04-08 08:59:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-08 08:59:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-04-08 08:59:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-08 08:59:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2022-04-08 08:59:47,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:47,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 58 transitions. [2022-04-08 08:59:47,750 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 58 transitions. [2022-04-08 08:59:47,814 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:47,816 INFO L225 Difference]: With dead ends: 50 [2022-04-08 08:59:47,816 INFO L226 Difference]: Without dead ends: 37 [2022-04-08 08:59:47,816 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-04-08 08:59:47,817 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 61 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-08 08:59:47,817 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 31 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-08 08:59:47,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-04-08 08:59:47,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2022-04-08 08:59:47,867 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-08 08:59:47,868 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,868 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,868 INFO L87 Difference]: Start difference. First operand 37 states. Second operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:47,870 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-04-08 08:59:47,870 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-04-08 08:59:47,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:47,880 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:47,881 INFO L74 IsIncluded]: Start isIncluded. First operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 37 states. [2022-04-08 08:59:47,881 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 37 states. [2022-04-08 08:59:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-08 08:59:47,883 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2022-04-08 08:59:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-04-08 08:59:47,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-08 08:59:47,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-08 08:59:47,884 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-08 08:59:47,884 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-08 08:59:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-08 08:59:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-04-08 08:59:47,885 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 29 [2022-04-08 08:59:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-08 08:59:47,886 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-04-08 08:59:47,886 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-08 08:59:47,886 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 31 states and 34 transitions. [2022-04-08 08:59:47,943 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-08 08:59:47,943 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-04-08 08:59:47,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-08 08:59:47,944 INFO L491 BasicCegarLoop]: Found error trace [2022-04-08 08:59:47,944 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-08 08:59:47,944 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-08 08:59:47,944 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-08 08:59:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-08 08:59:47,945 INFO L85 PathProgramCache]: Analyzing trace with hash 291267457, now seen corresponding path program 1 times [2022-04-08 08:59:47,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-08 08:59:47,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [298535171] [2022-04-08 08:59:47,950 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-08 08:59:47,950 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-08 08:59:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 291267457, now seen corresponding path program 2 times [2022-04-08 08:59:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-08 08:59:47,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371187102] [2022-04-08 08:59:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-08 08:59:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-08 08:59:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-08 08:59:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:48,116 INFO L290 TraceCheckUtils]: 0: Hoare triple {1010#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,117 INFO L290 TraceCheckUtils]: 1: Hoare triple {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} assume true; {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,118 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} {989#true} #72#return; {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-04-08 08:59:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:48,137 INFO L290 TraceCheckUtils]: 0: Hoare triple {1012#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {989#true} is VALID [2022-04-08 08:59:48,137 INFO L290 TraceCheckUtils]: 1: Hoare triple {989#true} assume true; {989#true} is VALID [2022-04-08 08:59:48,138 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {989#true} {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} #66#return; {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-08 08:59:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-08 08:59:48,416 INFO L290 TraceCheckUtils]: 0: Hoare triple {989#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {1013#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:48,417 INFO L290 TraceCheckUtils]: 1: Hoare triple {1013#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,418 INFO L290 TraceCheckUtils]: 2: Hoare triple {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,419 INFO L290 TraceCheckUtils]: 3: Hoare triple {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} assume !!#t~short5;havoc #t~mem4;havoc #t~short5;#t~post6 := ~j~0;~j~0 := 1 + #t~post6;havoc #t~post6; {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} is VALID [2022-04-08 08:59:48,420 INFO L290 TraceCheckUtils]: 4: Hoare triple {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} assume !(20 == ~j~0 % 4294967296); {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} is VALID [2022-04-08 08:59:48,422 INFO L290 TraceCheckUtils]: 5: Hoare triple {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {1016#(and (<= linear_search_~j~0 1) (or (< 0 (+ (div linear_search_~j~0 4294967296) 1)) (not |linear_search_#t~short5|)))} is VALID [2022-04-08 08:59:48,422 INFO L290 TraceCheckUtils]: 6: Hoare triple {1016#(and (<= linear_search_~j~0 1) (or (< 0 (+ (div linear_search_~j~0 4294967296) 1)) (not |linear_search_#t~short5|)))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} is VALID [2022-04-08 08:59:48,423 INFO L290 TraceCheckUtils]: 7: Hoare triple {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} is VALID [2022-04-08 08:59:48,424 INFO L290 TraceCheckUtils]: 8: Hoare triple {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} is VALID [2022-04-08 08:59:48,424 INFO L290 TraceCheckUtils]: 9: Hoare triple {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} assume true; {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} is VALID [2022-04-08 08:59:48,426 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} #68#return; {990#false} is VALID [2022-04-08 08:59:48,427 INFO L272 TraceCheckUtils]: 0: Hoare triple {989#true} call ULTIMATE.init(); {1010#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-08 08:59:48,428 INFO L290 TraceCheckUtils]: 1: Hoare triple {1010#(and (= |old(~SIZE~0)| ~SIZE~0) (= ~MAX~0 |old(~MAX~0)|) (= |#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(16, 2);call #Ultimate.allocInit(12, 3);~SIZE~0 := 0;~MAX~0 := 100000; {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,429 INFO L290 TraceCheckUtils]: 2: Hoare triple {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} assume true; {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,430 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1011#(and (<= 100000 ~MAX~0) (<= ~MAX~0 100000))} {989#true} #72#return; {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,430 INFO L272 TraceCheckUtils]: 4: Hoare triple {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} call #t~ret10 := main(); {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,431 INFO L290 TraceCheckUtils]: 5: Hoare triple {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} ~SIZE~0 := 1 + (if #t~nondet7 % 4294967296 < 0 && 0 != #t~nondet7 % 4294967296 % 2 then 1 + #t~nondet7 % 4294967296 / 2 else #t~nondet7 % 4294967296 / 2);havoc #t~nondet7; {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} is VALID [2022-04-08 08:59:48,433 INFO L290 TraceCheckUtils]: 6: Hoare triple {994#(and (not (<= (+ (div ~MAX~0 4294967296) 1) 0)) (<= ~MAX~0 100000))} assume ~SIZE~0 % 4294967296 > 1 && ~SIZE~0 % 4294967296 < ~MAX~0 % 4294967296;call #t~malloc8.base, #t~malloc8.offset := #Ultimate.allocOnHeap(4 * (~SIZE~0 % 4294967296)); {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,434 INFO L272 TraceCheckUtils]: 7: Hoare triple {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} call #Ultimate.meminit(#t~malloc8.base, #t~malloc8.offset, ~SIZE~0 % 4294967296, 4, 4 * (~SIZE~0 % 4294967296)); {1012#(= |#memory_int| |old(#memory_int)|)} is VALID [2022-04-08 08:59:48,434 INFO L290 TraceCheckUtils]: 8: Hoare triple {1012#(= |#memory_int| |old(#memory_int)|)} #memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, #ptr.base); {989#true} is VALID [2022-04-08 08:59:48,435 INFO L290 TraceCheckUtils]: 9: Hoare triple {989#true} assume true; {989#true} is VALID [2022-04-08 08:59:48,435 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {989#true} {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} #66#return; {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,436 INFO L290 TraceCheckUtils]: 11: Hoare triple {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} ~a~0.base, ~a~0.offset := #t~malloc8.base, #t~malloc8.offset;call write~int(3, ~a~0.base, ~a~0.offset + 4 * ((if ~SIZE~0 % 4294967296 < 0 && 0 != ~SIZE~0 % 4294967296 % 2 then 1 + ~SIZE~0 % 4294967296 / 2 else ~SIZE~0 % 4294967296 / 2) % 4294967296), 4); {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,436 INFO L272 TraceCheckUtils]: 12: Hoare triple {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} call #t~ret9 := linear_search(~a~0.base, ~a~0.offset, (if ~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then ~SIZE~0 % 4294967296 % 4294967296 else ~SIZE~0 % 4294967296 % 4294967296 - 4294967296), 3); {989#true} is VALID [2022-04-08 08:59:48,437 INFO L290 TraceCheckUtils]: 13: Hoare triple {989#true} ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n;~q := #in~q;~j~0 := 0; {1013#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} is VALID [2022-04-08 08:59:48,438 INFO L290 TraceCheckUtils]: 14: Hoare triple {1013#(and (<= linear_search_~j~0 0) (<= 0 linear_search_~j~0))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,439 INFO L290 TraceCheckUtils]: 15: Hoare triple {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} is VALID [2022-04-08 08:59:48,440 INFO L290 TraceCheckUtils]: 16: Hoare triple {1014#(and (<= linear_search_~j~0 0) (<= linear_search_~n (+ linear_search_~j~0 4294967295 (* (div linear_search_~n 4294967296) 4294967296))))} assume !!#t~short5;havoc #t~mem4;havoc #t~short5;#t~post6 := ~j~0;~j~0 := 1 + #t~post6;havoc #t~post6; {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} is VALID [2022-04-08 08:59:48,441 INFO L290 TraceCheckUtils]: 17: Hoare triple {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} assume !(20 == ~j~0 % 4294967296); {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} is VALID [2022-04-08 08:59:48,442 INFO L290 TraceCheckUtils]: 18: Hoare triple {1015#(and (<= linear_search_~j~0 1) (or (<= linear_search_~n (+ linear_search_~j~0 4294967294 (* (div linear_search_~n 4294967296) 4294967296))) (not (<= (+ (div linear_search_~j~0 4294967296) 1) 0))))} #t~short5 := ~j~0 % 4294967296 < ~n % 4294967296; {1016#(and (<= linear_search_~j~0 1) (or (< 0 (+ (div linear_search_~j~0 4294967296) 1)) (not |linear_search_#t~short5|)))} is VALID [2022-04-08 08:59:48,443 INFO L290 TraceCheckUtils]: 19: Hoare triple {1016#(and (<= linear_search_~j~0 1) (or (< 0 (+ (div linear_search_~j~0 4294967296) 1)) (not |linear_search_#t~short5|)))} assume #t~short5;call #t~mem4 := read~int(~a.base, ~a.offset + 4 * (~j~0 % 4294967296), 4);#t~short5 := #t~mem4 != ~q; {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} is VALID [2022-04-08 08:59:48,443 INFO L290 TraceCheckUtils]: 20: Hoare triple {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} assume !#t~short5;havoc #t~mem4;havoc #t~short5; {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} is VALID [2022-04-08 08:59:48,444 INFO L290 TraceCheckUtils]: 21: Hoare triple {1017#(and (<= linear_search_~j~0 1) (< 0 (+ (div linear_search_~j~0 4294967296) 1)))} assume !(~j~0 % 4294967296 < ~SIZE~0 % 4294967296);#res := 0; {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} is VALID [2022-04-08 08:59:48,444 INFO L290 TraceCheckUtils]: 22: Hoare triple {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} assume true; {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} is VALID [2022-04-08 08:59:48,446 INFO L284 TraceCheckUtils]: 23: Hoare quadruple {1018#(<= ~SIZE~0 (+ (* (div ~SIZE~0 4294967296) 4294967296) 1))} {995#(and (<= (+ 2 (* (div ~SIZE~0 4294967296) 4294967296)) ~SIZE~0) (<= ~SIZE~0 (+ 99999 (* (div ~SIZE~0 4294967296) 4294967296))))} #68#return; {990#false} is VALID [2022-04-08 08:59:48,446 INFO L290 TraceCheckUtils]: 24: Hoare triple {990#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {990#false} is VALID [2022-04-08 08:59:48,446 INFO L272 TraceCheckUtils]: 25: Hoare triple {990#false} call __VERIFIER_assert(#t~ret9); {990#false} is VALID [2022-04-08 08:59:48,446 INFO L290 TraceCheckUtils]: 26: Hoare triple {990#false} ~cond := #in~cond; {990#false} is VALID [2022-04-08 08:59:48,447 INFO L290 TraceCheckUtils]: 27: Hoare triple {990#false} assume 0 == ~cond; {990#false} is VALID [2022-04-08 08:59:48,447 INFO L290 TraceCheckUtils]: 28: Hoare triple {990#false} assume !false; {990#false} is VALID [2022-04-08 08:59:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-08 08:59:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-08 08:59:48,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371187102] [2022-04-08 08:59:48,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371187102] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-08 08:59:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302635391] [2022-04-08 08:59:48,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-08 08:59:48,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-08 08:59:48,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-08 08:59:48,451 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) [2022-04-08 08:59:48,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process