/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/trex01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 12:04:18,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 12:04:18,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 12:04:18,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 12:04:18,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 12:04:18,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 12:04:18,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 12:04:18,540 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 12:04:18,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 12:04:18,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 12:04:18,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 12:04:18,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 12:04:18,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 12:04:18,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 12:04:18,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 12:04:18,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 12:04:18,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 12:04:18,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 12:04:18,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 12:04:18,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:04:18,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-15 12:04:18,556 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-15 12:04:18,557 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-15 12:04:18,557 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 12:04:18,557 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-15 12:04:18,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 12:04:18,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 12:04:18,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 12:04:18,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 12:04:18,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 12:04:18,811 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 12:04:18,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-1.c [2022-04-15 12:04:18,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfca4b9c7/246d671aa47c4647a66b6888bed28468/FLAG2b56c6573 [2022-04-15 12:04:19,234 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 12:04:19,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01-1.c [2022-04-15 12:04:19,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfca4b9c7/246d671aa47c4647a66b6888bed28468/FLAG2b56c6573 [2022-04-15 12:04:19,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfca4b9c7/246d671aa47c4647a66b6888bed28468 [2022-04-15 12:04:19,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 12:04:19,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-15 12:04:19,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 12:04:19,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 12:04:19,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 12:04:19,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee139d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19, skipping insertion in model container [2022-04-15 12:04:19,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 12:04:19,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 12:04:19,865 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/trex01-1.c[320,333] [2022-04-15 12:04:19,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:04:19,905 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 12:04:19,919 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/trex01-1.c[320,333] [2022-04-15 12:04:19,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 12:04:19,945 INFO L208 MainTranslator]: Completed translation [2022-04-15 12:04:19,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19 WrapperNode [2022-04-15 12:04:19,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 12:04:19,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 12:04:19,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 12:04:19,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 12:04:19,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 12:04:19,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 12:04:19,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 12:04:19,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 12:04:19,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (1/1) ... [2022-04-15 12:04:19,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 12:04:20,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 12:04:20,016 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 12:04:20,036 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 12:04:20,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 12:04:20,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 12:04:20,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 12:04:20,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 12:04:20,053 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-04-15 12:04:20,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 12:04:20,053 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 12:04:20,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 12:04:20,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 12:04:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 12:04:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 12:04:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-04-15 12:04:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-15 12:04:20,054 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-04-15 12:04:20,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 12:04:20,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 12:04:20,115 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 12:04:20,117 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 12:04:20,285 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 12:04:20,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 12:04:20,290 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-15 12:04:20,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:04:20 BoogieIcfgContainer [2022-04-15 12:04:20,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 12:04:20,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 12:04:20,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 12:04:20,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 12:04:20,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:04:19" (1/3) ... [2022-04-15 12:04:20,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f779ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:04:20, skipping insertion in model container [2022-04-15 12:04:20,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:04:19" (2/3) ... [2022-04-15 12:04:20,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54f779ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:04:20, skipping insertion in model container [2022-04-15 12:04:20,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:04:20" (3/3) ... [2022-04-15 12:04:20,298 INFO L111 eAbstractionObserver]: Analyzing ICFG trex01-1.c [2022-04-15 12:04:20,302 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-15 12:04:20,302 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 12:04:20,334 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 12:04:20,340 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 12:04:20,340 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 12:04:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.5) internal successors, (27), 21 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-15 12:04:20,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-15 12:04:20,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:04:20,362 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:04:20,363 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:04:20,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:04:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash 172866924, now seen corresponding path program 1 times [2022-04-15 12:04:20,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:04:20,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [469842783] [2022-04-15 12:04:20,392 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:04:20,392 INFO L85 PathProgramCache]: Analyzing trace with hash 172866924, now seen corresponding path program 2 times [2022-04-15 12:04:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:04:20,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854570492] [2022-04-15 12:04:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:04:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:04:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:04:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 12:04:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 12:04:20,599 INFO L290 TraceCheckUtils]: 0: Hoare triple {37#(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(11, 2);call #Ultimate.allocInit(12, 3); {32#true} is VALID [2022-04-15 12:04:20,600 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} assume true; {32#true} is VALID [2022-04-15 12:04:20,600 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} #75#return; {32#true} is VALID [2022-04-15 12:04:20,604 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} call ULTIMATE.init(); {37#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 12:04:20,604 INFO L290 TraceCheckUtils]: 1: Hoare triple {37#(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(11, 2);call #Ultimate.allocInit(12, 3); {32#true} is VALID [2022-04-15 12:04:20,604 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} assume true; {32#true} is VALID [2022-04-15 12:04:20,604 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} #75#return; {32#true} is VALID [2022-04-15 12:04:20,605 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} call #t~ret10 := main(); {32#true} is VALID [2022-04-15 12:04:20,605 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} ~c~1 := #t~nondet9;havoc #t~nondet9; {32#true} is VALID [2022-04-15 12:04:20,605 INFO L290 TraceCheckUtils]: 6: Hoare triple {32#true} assume 0 != ~c~1 % 256; {32#true} is VALID [2022-04-15 12:04:20,605 INFO L272 TraceCheckUtils]: 7: Hoare triple {32#true} call f(1); {32#true} is VALID [2022-04-15 12:04:20,606 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#true} ~d := #in~d;assume -2147483648 <= #t~nondet4 && #t~nondet4 <= 2147483647;~x~0 := #t~nondet4;havoc #t~nondet4;assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647;~y~0 := #t~nondet5;havoc #t~nondet5;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~k~0 := #t~nondet6;havoc #t~nondet6;~z~0 := 1; {32#true} is VALID [2022-04-15 12:04:20,606 INFO L290 TraceCheckUtils]: 9: Hoare triple {32#true} assume !!(~k~0 <= 1073741823); {32#true} is VALID [2022-04-15 12:04:20,607 INFO L290 TraceCheckUtils]: 10: Hoare triple {32#true} assume !true; {33#false} is VALID [2022-04-15 12:04:20,608 INFO L272 TraceCheckUtils]: 11: Hoare triple {33#false} call __VERIFIER_assert((if ~z~0 >= 2 then 1 else 0)); {33#false} is VALID [2022-04-15 12:04:20,608 INFO L290 TraceCheckUtils]: 12: Hoare triple {33#false} ~cond := #in~cond; {33#false} is VALID [2022-04-15 12:04:20,608 INFO L290 TraceCheckUtils]: 13: Hoare triple {33#false} assume 0 == ~cond; {33#false} is VALID [2022-04-15 12:04:20,608 INFO L290 TraceCheckUtils]: 14: Hoare triple {33#false} assume !false; {33#false} is VALID [2022-04-15 12:04:20,609 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 12:04:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 12:04:20,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854570492] [2022-04-15 12:04:20,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854570492] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:04:20,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:04:20,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:04:20,613 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-15 12:04:20,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [469842783] [2022-04-15 12:04:20,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [469842783] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 12:04:20,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 12:04:20,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 12:04:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807878473] [2022-04-15 12:04:20,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 12:04:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-15 12:04:20,622 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 12:04:20,624 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,656 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:04:20,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 12:04:20,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-15 12:04:20,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 12:04:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 12:04:20,677 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.5) internal successors, (27), 21 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:04:20,778 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2022-04-15 12:04:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 12:04:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-15 12:04:20,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 12:04:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-04-15 12:04:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-04-15 12:04:20,793 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 59 transitions. [2022-04-15 12:04:20,872 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 12:04:20,878 INFO L225 Difference]: With dead ends: 46 [2022-04-15 12:04:20,879 INFO L226 Difference]: Without dead ends: 17 [2022-04-15 12:04:20,881 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 12:04:20,884 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 12:04:20,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 12:04:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-04-15 12:04:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-04-15 12:04:20,916 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 12:04:20,917 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,917 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,918 INFO L87 Difference]: Start difference. First operand 17 states. Second operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:04:20,920 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-15 12:04:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-15 12:04:20,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:04:20,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:04:20,921 INFO L74 IsIncluded]: Start isIncluded. First operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-15 12:04:20,922 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 17 states. [2022-04-15 12:04:20,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 12:04:20,924 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-04-15 12:04:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-15 12:04:20,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 12:04:20,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 12:04:20,925 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 12:04:20,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 12:04:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 5 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-04-15 12:04:20,928 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2022-04-15 12:04:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 12:04:20,928 INFO L478 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-04-15 12:04:20,929 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 12:04:20,929 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 17 states and 18 transitions. [2022-04-15 12:04:20,948 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 12:04:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-04-15 12:04:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-15 12:04:20,949 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 12:04:20,949 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 12:04:20,950 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 12:04:20,950 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 12:04:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 12:04:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash 169172840, now seen corresponding path program 1 times [2022-04-15 12:04:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-15 12:04:20,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1389659044] [2022-04-15 12:04:20,952 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-15 12:04:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash 169172840, now seen corresponding path program 2 times [2022-04-15 12:04:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 12:04:20,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589405423] [2022-04-15 12:04:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 12:04:20,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 12:04:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:04:20,995 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-15 12:04:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-15 12:04:21,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-15 12:04:21,027 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-15 12:04:21,028 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-15 12:04:21,031 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 12:04:21,033 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 12:04:21,037 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2] [2022-04-15 12:04:21,038 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-15 12:04:21,050 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 12:04:21,051 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 12:04:21,051 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 12:04:21,051 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:04:21,051 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-15 12:04:21,051 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L22-1 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-04-15 12:04:21,052 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L40-1 has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 12:04:21,053 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 12:04:21,054 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2022-04-15 12:04:21,054 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 12:04:21,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:04:21 BoogieIcfgContainer [2022-04-15 12:04:21,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 12:04:21,058 INFO L158 Benchmark]: Toolchain (without parser) took 1401.46ms. Allocated memory was 183.5MB in the beginning and 224.4MB in the end (delta: 40.9MB). Free memory was 133.6MB in the beginning and 196.3MB in the end (delta: -62.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:04:21,061 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 183.5MB. Free memory was 149.6MB in the beginning and 149.5MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:04:21,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.67ms. Allocated memory is still 183.5MB. Free memory was 133.4MB in the beginning and 159.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 12:04:21,064 INFO L158 Benchmark]: Boogie Preprocessor took 39.61ms. Allocated memory is still 183.5MB. Free memory was 159.1MB in the beginning and 157.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 12:04:21,065 INFO L158 Benchmark]: RCFGBuilder took 305.19ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 146.1MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-15 12:04:21,065 INFO L158 Benchmark]: TraceAbstraction took 762.42ms. Allocated memory was 183.5MB in the beginning and 224.4MB in the end (delta: 40.9MB). Free memory was 145.6MB in the beginning and 196.3MB in the end (delta: -50.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 12:04:21,068 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 0.17ms. Allocated memory is still 183.5MB. Free memory was 149.6MB in the beginning and 149.5MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 288.67ms. Allocated memory is still 183.5MB. Free memory was 133.4MB in the beginning and 159.1MB in the end (delta: -25.7MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.61ms. Allocated memory is still 183.5MB. Free memory was 159.1MB in the beginning and 157.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 305.19ms. Allocated memory is still 183.5MB. Free memory was 157.4MB in the beginning and 146.1MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 762.42ms. Allocated memory was 183.5MB in the beginning and 224.4MB in the end (delta: 40.9MB). Free memory was 145.6MB in the beginning and 196.3MB in the end (delta: -50.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L36] _Bool c = __VERIFIER_nondet_bool(); [L37] COND TRUE \read(c) [L38] CALL f(1) [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L15] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L16] COND FALSE !(!(k <= 1073741823)) [L19] COND FALSE !(z < k) [L20] CALL __VERIFIER_assert(z>=2) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 31 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-04-15 12:04:21,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...