/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/loop-invgen/NetBSD_loop.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 12:28:06,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 12:28:06,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 12:28:06,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 12:28:06,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 12:28:06,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 12:28:06,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 12:28:06,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-15 12:28:06,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 12:28:06,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 12:28:06,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 12:28:06,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 12:28:06,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:28:06,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 12:28:06,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 12:28:06,668 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 12:28:06,668 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 12:28:06,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 12:28:06,668 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 12:28:06,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 12:28:06,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 12:28:06,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 12:28:06,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 12:28:06,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 12:28:06,883 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 12:28:06,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2022-04-15 12:28:06,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde46110/ed507e59a43a4581a3fd5c94e3610f61/FLAG5f9f80936 [2022-04-15 12:28:07,292 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 12:28:07,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i [2022-04-15 12:28:07,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde46110/ed507e59a43a4581a3fd5c94e3610f61/FLAG5f9f80936 [2022-04-15 12:28:07,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cde46110/ed507e59a43a4581a3fd5c94e3610f61 [2022-04-15 12:28:07,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 12:28:07,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 12:28:07,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 12:28:07,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 12:28:07,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 12:28:07,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd86148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07, skipping insertion in model container [2022-04-15 12:28:07,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 12:28:07,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 12:28:07,449 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i[893,906] [2022-04-15 12:28:07,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:28:07,468 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 12:28:07,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop.i[893,906] [2022-04-15 12:28:07,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:28:07,487 INFO L208 MainTranslator]: Completed translation [2022-04-15 12:28:07,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07 WrapperNode [2022-04-15 12:28:07,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 12:28:07,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 12:28:07,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 12:28:07,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 12:28:07,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 12:28:07,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 12:28:07,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 12:28:07,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 12:28:07,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (1/1) ... [2022-04-15 12:28:07,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:28:07,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 12:28:07,534 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) [2022-04-15 12:28:07,540 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 [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 12:28:07,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 12:28:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 12:28:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 12:28:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 12:28:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 12:28:07,605 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 12:28:07,606 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 12:28:07,719 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 12:28:07,723 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 12:28:07,724 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 12:28:07,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:28:07 BoogieIcfgContainer [2022-04-15 12:28:07,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 12:28:07,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 12:28:07,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 12:28:07,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 12:28:07,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:28:07" (1/3) ... [2022-04-15 12:28:07,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86b213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:28:07, skipping insertion in model container [2022-04-15 12:28:07,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:28:07" (2/3) ... [2022-04-15 12:28:07,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86b213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:28:07, skipping insertion in model container [2022-04-15 12:28:07,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:28:07" (3/3) ... [2022-04-15 12:28:07,730 INFO L111 eAbstractionObserver]: Analyzing ICFG NetBSD_loop.i [2022-04-15 12:28:07,733 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 12:28:07,733 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 12:28:07,761 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 12:28:07,766 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 [2022-04-15 12:28:07,766 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 12:28:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 12:28:07,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-15 12:28:07,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:28:07,800 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:28:07,800 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:28:07,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:28:07,803 INFO L85 PathProgramCache]: Analyzing trace with hash -390730657, now seen corresponding path program 1 times [2022-04-15 12:28:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:28:07,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [852119101] [2022-04-15 12:28:07,848 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:28:07,848 INFO L85 PathProgramCache]: Analyzing trace with hash -390730657, now seen corresponding path program 2 times [2022-04-15 12:28:07,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:28:07,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63227100] [2022-04-15 12:28:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:28:07,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:28:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:28:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:08,042 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {26#true} is VALID [2022-04-15 12:28:08,042 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2022-04-15 12:28:08,042 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #61#return; {26#true} is VALID [2022-04-15 12:28:08,047 INFO L272 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {34#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:28:08,047 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {26#true} is VALID [2022-04-15 12:28:08,047 INFO L290 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2022-04-15 12:28:08,047 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #61#return; {26#true} is VALID [2022-04-15 12:28:08,048 INFO L272 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret3 := main(); {26#true} is VALID [2022-04-15 12:28:08,048 INFO L290 TraceCheckUtils]: 5: Hoare triple {26#true} havoc ~MAXPATHLEN~0;havoc ~pathbuf_off~0;havoc ~bound_off~0;havoc ~glob2_p_off~0;havoc ~glob2_pathbuf_off~0;havoc ~glob2_pathlim_off~0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~MAXPATHLEN~0 := #t~nondet1;havoc #t~nondet1; {26#true} is VALID [2022-04-15 12:28:08,048 INFO L290 TraceCheckUtils]: 6: Hoare triple {26#true} assume ~MAXPATHLEN~0 > 0 && ~MAXPATHLEN~0 < 2147483647; {26#true} is VALID [2022-04-15 12:28:08,049 INFO L290 TraceCheckUtils]: 7: Hoare triple {26#true} ~pathbuf_off~0 := 0;~bound_off~0 := ~pathbuf_off~0 + (1 + ~MAXPATHLEN~0) - 1;~glob2_pathbuf_off~0 := ~pathbuf_off~0;~glob2_pathlim_off~0 := ~bound_off~0;~glob2_p_off~0 := ~glob2_pathbuf_off~0; {31#(<= 0 main_~glob2_p_off~0)} is VALID [2022-04-15 12:28:08,050 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#(<= 0 main_~glob2_p_off~0)} assume !!(~glob2_p_off~0 <= ~glob2_pathlim_off~0); {31#(<= 0 main_~glob2_p_off~0)} is VALID [2022-04-15 12:28:08,050 INFO L272 TraceCheckUtils]: 9: Hoare triple {31#(<= 0 main_~glob2_p_off~0)} call __VERIFIER_assert((if 0 <= ~glob2_p_off~0 then 1 else 0)); {32#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 12:28:08,051 INFO L290 TraceCheckUtils]: 10: Hoare triple {32#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {33#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 12:28:08,051 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {27#false} is VALID [2022-04-15 12:28:08,052 INFO L290 TraceCheckUtils]: 12: Hoare triple {27#false} assume !false; {27#false} is VALID [2022-04-15 12:28:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:28:08,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:28:08,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63227100] [2022-04-15 12:28:08,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63227100] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:08,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:08,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 12:28:08,055 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:28:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [852119101] [2022-04-15 12:28:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [852119101] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:08,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:08,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-15 12:28:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92692569] [2022-04-15 12:28:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:28:08,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 12:28:08,061 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:28:08,064 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:28:08,077 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:08,078 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-15 12:28:08,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:28:08,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-15 12:28:08,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-15 12:28:08,095 INFO L87 Difference]: Start difference. First operand has 23 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:28:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:08,366 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-04-15 12:28:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-15 12:28:08,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 12:28:08,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:28:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:28:08,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 54 transitions. [2022-04-15 12:28:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:28:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 54 transitions. [2022-04-15 12:28:08,377 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 54 transitions. [2022-04-15 12:28:08,438 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:08,444 INFO L225 Difference]: With dead ends: 45 [2022-04-15 12:28:08,444 INFO L226 Difference]: Without dead ends: 22 [2022-04-15 12:28:08,446 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-04-15 12:28:08,448 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 25 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 12:28:08,449 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 42 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 12:28:08,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-15 12:28:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-15 12:28:08,481 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:28:08,481 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 12:28:08,482 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 12:28:08,483 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 12:28:08,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:08,493 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-04-15 12:28:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-04-15 12:28:08,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:28:08,494 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:28:08,494 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 12:28:08,495 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand 22 states. [2022-04-15 12:28:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:08,498 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2022-04-15 12:28:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-04-15 12:28:08,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:28:08,498 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:28:08,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:28:08,498 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:28:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-15 12:28:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2022-04-15 12:28:08,505 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2022-04-15 12:28:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:28:08,507 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2022-04-15 12:28:08,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:28:08,510 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 22 states and 22 transitions. [2022-04-15 12:28:08,563 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2022-04-15 12:28:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-04-15 12:28:08,563 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:28:08,564 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:28:08,564 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 12:28:08,564 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:28:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:28:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1367367025, now seen corresponding path program 1 times [2022-04-15 12:28:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:28:08,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [761197394] [2022-04-15 12:28:08,566 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:28:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1367367025, now seen corresponding path program 2 times [2022-04-15 12:28:08,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:28:08,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413355742] [2022-04-15 12:28:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:28:08,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:28:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:28:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:08,652 INFO L290 TraceCheckUtils]: 0: Hoare triple {236#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {223#true} is VALID [2022-04-15 12:28:08,653 INFO L290 TraceCheckUtils]: 1: Hoare triple {223#true} assume true; {223#true} is VALID [2022-04-15 12:28:08,654 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {223#true} {223#true} #61#return; {223#true} is VALID [2022-04-15 12:28:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-04-15 12:28:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:08,672 INFO L290 TraceCheckUtils]: 0: Hoare triple {223#true} ~cond := #in~cond; {223#true} is VALID [2022-04-15 12:28:08,672 INFO L290 TraceCheckUtils]: 1: Hoare triple {223#true} assume !(0 == ~cond); {223#true} is VALID [2022-04-15 12:28:08,672 INFO L290 TraceCheckUtils]: 2: Hoare triple {223#true} assume true; {223#true} is VALID [2022-04-15 12:28:08,673 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {223#true} {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} #57#return; {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:08,674 INFO L272 TraceCheckUtils]: 0: Hoare triple {223#true} call ULTIMATE.init(); {236#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:28:08,674 INFO L290 TraceCheckUtils]: 1: Hoare triple {236#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {223#true} is VALID [2022-04-15 12:28:08,674 INFO L290 TraceCheckUtils]: 2: Hoare triple {223#true} assume true; {223#true} is VALID [2022-04-15 12:28:08,675 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {223#true} {223#true} #61#return; {223#true} is VALID [2022-04-15 12:28:08,675 INFO L272 TraceCheckUtils]: 4: Hoare triple {223#true} call #t~ret3 := main(); {223#true} is VALID [2022-04-15 12:28:08,675 INFO L290 TraceCheckUtils]: 5: Hoare triple {223#true} havoc ~MAXPATHLEN~0;havoc ~pathbuf_off~0;havoc ~bound_off~0;havoc ~glob2_p_off~0;havoc ~glob2_pathbuf_off~0;havoc ~glob2_pathlim_off~0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~MAXPATHLEN~0 := #t~nondet1;havoc #t~nondet1; {223#true} is VALID [2022-04-15 12:28:08,675 INFO L290 TraceCheckUtils]: 6: Hoare triple {223#true} assume ~MAXPATHLEN~0 > 0 && ~MAXPATHLEN~0 < 2147483647; {228#(<= 1 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:08,676 INFO L290 TraceCheckUtils]: 7: Hoare triple {228#(<= 1 main_~MAXPATHLEN~0)} ~pathbuf_off~0 := 0;~bound_off~0 := ~pathbuf_off~0 + (1 + ~MAXPATHLEN~0) - 1;~glob2_pathbuf_off~0 := ~pathbuf_off~0;~glob2_pathlim_off~0 := ~bound_off~0;~glob2_p_off~0 := ~glob2_pathbuf_off~0; {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:08,676 INFO L290 TraceCheckUtils]: 8: Hoare triple {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} assume !!(~glob2_p_off~0 <= ~glob2_pathlim_off~0); {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:08,677 INFO L272 TraceCheckUtils]: 9: Hoare triple {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} call __VERIFIER_assert((if 0 <= ~glob2_p_off~0 then 1 else 0)); {223#true} is VALID [2022-04-15 12:28:08,677 INFO L290 TraceCheckUtils]: 10: Hoare triple {223#true} ~cond := #in~cond; {223#true} is VALID [2022-04-15 12:28:08,677 INFO L290 TraceCheckUtils]: 11: Hoare triple {223#true} assume !(0 == ~cond); {223#true} is VALID [2022-04-15 12:28:08,677 INFO L290 TraceCheckUtils]: 12: Hoare triple {223#true} assume true; {223#true} is VALID [2022-04-15 12:28:08,678 INFO L284 TraceCheckUtils]: 13: Hoare quadruple {223#true} {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} #57#return; {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:08,679 INFO L272 TraceCheckUtils]: 14: Hoare triple {229#(<= (+ main_~glob2_p_off~0 1) main_~MAXPATHLEN~0)} call __VERIFIER_assert((if ~glob2_p_off~0 < 1 + ~MAXPATHLEN~0 then 1 else 0)); {234#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 12:28:08,679 INFO L290 TraceCheckUtils]: 15: Hoare triple {234#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {235#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 12:28:08,680 INFO L290 TraceCheckUtils]: 16: Hoare triple {235#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {224#false} is VALID [2022-04-15 12:28:08,680 INFO L290 TraceCheckUtils]: 17: Hoare triple {224#false} assume !false; {224#false} is VALID [2022-04-15 12:28:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:28:08,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:28:08,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413355742] [2022-04-15 12:28:08,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413355742] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:08,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:08,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 12:28:08,682 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:28:08,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [761197394] [2022-04-15 12:28:08,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [761197394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:08,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:08,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 12:28:08,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370270039] [2022-04-15 12:28:08,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:28:08,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-15 12:28:08,683 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:28:08,683 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:28:08,696 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:08,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-15 12:28:08,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:28:08,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-15 12:28:08,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-15 12:28:08,700 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:28:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:08,961 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-04-15 12:28:08,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-15 12:28:08,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-04-15 12:28:08,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:28:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:28:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2022-04-15 12:28:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:28:08,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2022-04-15 12:28:08,965 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 30 transitions. [2022-04-15 12:28:08,991 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:08,993 INFO L225 Difference]: With dead ends: 32 [2022-04-15 12:28:08,993 INFO L226 Difference]: Without dead ends: 30 [2022-04-15 12:28:08,993 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-04-15 12:28:08,994 INFO L913 BasicCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-15 12:28:08,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 37 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-15 12:28:08,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-15 12:28:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-04-15 12:28:09,012 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:28:09,012 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 12:28:09,013 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 12:28:09,013 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 12:28:09,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:09,015 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-04-15 12:28:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-04-15 12:28:09,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:28:09,016 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:28:09,016 INFO L74 IsIncluded]: Start isIncluded. First operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 30 states. [2022-04-15 12:28:09,016 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand 30 states. [2022-04-15 12:28:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:28:09,018 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-04-15 12:28:09,018 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-04-15 12:28:09,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:28:09,018 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:28:09,018 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:28:09,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:28:09,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 12:28:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-04-15 12:28:09,020 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2022-04-15 12:28:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:28:09,020 INFO L478 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-04-15 12:28:09,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-15 12:28:09,020 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 29 states and 30 transitions. [2022-04-15 12:28:09,050 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:28:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-04-15 12:28:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-15 12:28:09,051 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:28:09,051 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:28:09,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 12:28:09,052 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:28:09,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:28:09,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1382920975, now seen corresponding path program 1 times [2022-04-15 12:28:09,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:28:09,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [277340566] [2022-04-15 12:28:09,295 INFO L271 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-04-15 12:28:09,297 INFO L85 PathProgramCache]: Analyzing trace with hash -777149182, now seen corresponding path program 1 times [2022-04-15 12:28:09,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:28:09,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021026666] [2022-04-15 12:28:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:28:09,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:28:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:28:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:09,376 INFO L290 TraceCheckUtils]: 0: Hoare triple {444#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {431#true} is VALID [2022-04-15 12:28:09,376 INFO L290 TraceCheckUtils]: 1: Hoare triple {431#true} assume true; {431#true} is VALID [2022-04-15 12:28:09,376 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {431#true} {431#true} #61#return; {431#true} is VALID [2022-04-15 12:28:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-15 12:28:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:28:09,381 INFO L290 TraceCheckUtils]: 0: Hoare triple {431#true} ~cond := #in~cond; {431#true} is VALID [2022-04-15 12:28:09,381 INFO L290 TraceCheckUtils]: 1: Hoare triple {431#true} assume !(0 == ~cond); {431#true} is VALID [2022-04-15 12:28:09,382 INFO L290 TraceCheckUtils]: 2: Hoare triple {431#true} assume true; {431#true} is VALID [2022-04-15 12:28:09,382 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {431#true} {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} #57#return; {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:09,383 INFO L272 TraceCheckUtils]: 0: Hoare triple {431#true} call ULTIMATE.init(); {444#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:28:09,383 INFO L290 TraceCheckUtils]: 1: Hoare triple {444#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} #NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); {431#true} is VALID [2022-04-15 12:28:09,383 INFO L290 TraceCheckUtils]: 2: Hoare triple {431#true} assume true; {431#true} is VALID [2022-04-15 12:28:09,383 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {431#true} {431#true} #61#return; {431#true} is VALID [2022-04-15 12:28:09,383 INFO L272 TraceCheckUtils]: 4: Hoare triple {431#true} call #t~ret3 := main(); {431#true} is VALID [2022-04-15 12:28:09,383 INFO L290 TraceCheckUtils]: 5: Hoare triple {431#true} havoc ~MAXPATHLEN~0;havoc ~pathbuf_off~0;havoc ~bound_off~0;havoc ~glob2_p_off~0;havoc ~glob2_pathbuf_off~0;havoc ~glob2_pathlim_off~0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~MAXPATHLEN~0 := #t~nondet1;havoc #t~nondet1; {431#true} is VALID [2022-04-15 12:28:09,383 INFO L290 TraceCheckUtils]: 6: Hoare triple {431#true} assume ~MAXPATHLEN~0 > 0 && ~MAXPATHLEN~0 < 2147483647; {431#true} is VALID [2022-04-15 12:28:09,384 INFO L290 TraceCheckUtils]: 7: Hoare triple {431#true} ~pathbuf_off~0 := 0;~bound_off~0 := ~pathbuf_off~0 + (1 + ~MAXPATHLEN~0) - 1;~glob2_pathbuf_off~0 := ~pathbuf_off~0;~glob2_pathlim_off~0 := ~bound_off~0;~glob2_p_off~0 := ~glob2_pathbuf_off~0; {436#(<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:09,384 INFO L290 TraceCheckUtils]: 8: Hoare triple {436#(<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)} [65] L38-2-->L41_primed: Formula: true InVars {} OutVars{main_~glob2_p_off~0=v_main_~glob2_p_off~0_Out_2, main_#t~post2=|v_main_#t~post2_Out_2|} AuxVars[] AssignedVars[main_#t~post2, main_~glob2_p_off~0] {436#(<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:09,385 INFO L290 TraceCheckUtils]: 9: Hoare triple {436#(<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0)} [64] L41_primed-->L41: Formula: (<= v_main_~glob2_p_off~0_6 v_main_~glob2_pathlim_off~0_3) InVars {main_~glob2_pathlim_off~0=v_main_~glob2_pathlim_off~0_3, main_~glob2_p_off~0=v_main_~glob2_p_off~0_6} OutVars{main_~glob2_pathlim_off~0=v_main_~glob2_pathlim_off~0_3, main_~glob2_p_off~0=v_main_~glob2_p_off~0_6} AuxVars[] AssignedVars[] {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:09,385 INFO L272 TraceCheckUtils]: 10: Hoare triple {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} call __VERIFIER_assert((if 0 <= ~glob2_p_off~0 then 1 else 0)); {431#true} is VALID [2022-04-15 12:28:09,385 INFO L290 TraceCheckUtils]: 11: Hoare triple {431#true} ~cond := #in~cond; {431#true} is VALID [2022-04-15 12:28:09,385 INFO L290 TraceCheckUtils]: 12: Hoare triple {431#true} assume !(0 == ~cond); {431#true} is VALID [2022-04-15 12:28:09,385 INFO L290 TraceCheckUtils]: 13: Hoare triple {431#true} assume true; {431#true} is VALID [2022-04-15 12:28:09,386 INFO L284 TraceCheckUtils]: 14: Hoare quadruple {431#true} {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} #57#return; {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} is VALID [2022-04-15 12:28:09,386 INFO L272 TraceCheckUtils]: 15: Hoare triple {437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)} call __VERIFIER_assert((if ~glob2_p_off~0 < 1 + ~MAXPATHLEN~0 then 1 else 0)); {442#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 12:28:09,387 INFO L290 TraceCheckUtils]: 16: Hoare triple {442#(not (= |__VERIFIER_assert_#in~cond| 0))} ~cond := #in~cond; {443#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 12:28:09,387 INFO L290 TraceCheckUtils]: 17: Hoare triple {443#(not (= __VERIFIER_assert_~cond 0))} assume 0 == ~cond; {432#false} is VALID [2022-04-15 12:28:09,387 INFO L290 TraceCheckUtils]: 18: Hoare triple {432#false} assume !false; {432#false} is VALID [2022-04-15 12:28:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 12:28:09,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:28:09,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021026666] [2022-04-15 12:28:09,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021026666] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:09,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:09,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-15 12:28:09,532 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:28:09,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [277340566] [2022-04-15 12:28:09,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [277340566] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:28:09,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:28:09,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-04-15 12:28:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24769350] [2022-04-15 12:28:09,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:28:09,533 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 9 states have internal predecessors, (17), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2022-04-15 12:28:09,533 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:28:09,533 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 9 states have internal predecessors, (17), 4 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-15 12:28:09,538 WARN L143 InductivityCheck]: Transition 450#(<= main_~glob2_p_off~0 (+ main_~MAXPATHLEN~0 1)) ( _ , assume !!(~glob2_p_off~0 <= ~glob2_pathlim_off~0); , 437#(<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) ) not inductive [2022-04-15 12:28:09,538 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-15 12:28:09,539 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inductivity failed at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.checkInductivity(InductivityCheck.java:103) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.(InductivityCheck.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.constructInterpolantAutomaton(BasicCegarLoop.java:682) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.constructRefinementAutomaton(AbstractCegarLoop.java:547) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:261) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-04-15 12:28:09,542 INFO L158 Benchmark]: Toolchain (without parser) took 2234.38ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 128.4MB in the beginning and 116.7MB in the end (delta: 11.7MB). Peak memory consumption was 48.1MB. Max. memory is 8.0GB. [2022-04-15 12:28:09,542 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory was 144.4MB in the beginning and 144.3MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:28:09,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.30ms. Allocated memory is still 181.4MB. Free memory was 128.1MB in the beginning and 156.9MB in the end (delta: -28.7MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. [2022-04-15 12:28:09,543 INFO L158 Benchmark]: Boogie Preprocessor took 18.94ms. Allocated memory is still 181.4MB. Free memory was 156.9MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 12:28:09,543 INFO L158 Benchmark]: RCFGBuilder took 217.55ms. Allocated memory is still 181.4MB. Free memory was 155.3MB in the beginning and 144.1MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 12:28:09,543 INFO L158 Benchmark]: TraceAbstraction took 1814.98ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 143.4MB in the beginning and 116.7MB in the end (delta: 26.7MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. [2022-04-15 12:28:09,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory was 144.4MB in the beginning and 144.3MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 179.30ms. Allocated memory is still 181.4MB. Free memory was 128.1MB in the beginning and 156.9MB in the end (delta: -28.7MB). Peak memory consumption was 15.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.94ms. Allocated memory is still 181.4MB. Free memory was 156.9MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 217.55ms. Allocated memory is still 181.4MB. Free memory was 155.3MB in the beginning and 144.1MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1814.98ms. Allocated memory was 181.4MB in the beginning and 218.1MB in the end (delta: 36.7MB). Free memory was 143.4MB in the beginning and 116.7MB in the end (delta: 26.7MB). Peak memory consumption was 62.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inductivity failed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inductivity failed: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.InductivityCheck.evaluateResult(InductivityCheck.java:145) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-04-15 12:28:09,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...