/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/veris.c_sendmail_tTflag_arr_one_loop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 09:04:36,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 09:04:36,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 09:04:36,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-28 09:04:36,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 09:04:36,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 09:04:36,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 09:04:36,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-28 09:04:36,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 09:04:36,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 09:04:36,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 09:04:36,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 09:04:36,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 09:04:36,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 09:04:36,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 09:04:36,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-28 09:04:36,882 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-28 09:04:36,882 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-28 09:04:36,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 09:04:36,886 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-28 09:04:36,886 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 09:04:37,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 09:04:37,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 09:04:37,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 09:04:37,056 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 09:04:37,057 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 09:04:37,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2022-04-28 09:04:37,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b6447c8/19d19b640e73470bb95c056dd7b18805/FLAG628350874 [2022-04-28 09:04:37,430 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 09:04:37,431 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail_tTflag_arr_one_loop.c [2022-04-28 09:04:37,434 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b6447c8/19d19b640e73470bb95c056dd7b18805/FLAG628350874 [2022-04-28 09:04:37,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42b6447c8/19d19b640e73470bb95c056dd7b18805 [2022-04-28 09:04:37,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 09:04:37,878 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-28 09:04:37,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 09:04:37,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 09:04:37,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 09:04:37,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:04:37" (1/1) ... [2022-04-28 09:04:37,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f734e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:37, skipping insertion in model container [2022-04-28 09:04:37,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:04:37" (1/1) ... [2022-04-28 09:04:37,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 09:04:37,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 09:04:38,028 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/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2022-04-28 09:04:38,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 09:04:38,051 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 09:04:38,059 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/veris.c_sendmail_tTflag_arr_one_loop.c[386,399] [2022-04-28 09:04:38,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 09:04:38,071 INFO L208 MainTranslator]: Completed translation [2022-04-28 09:04:38,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38 WrapperNode [2022-04-28 09:04:38,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 09:04:38,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 09:04:38,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 09:04:38,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 09:04:38,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 09:04:38,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 09:04:38,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 09:04:38,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 09:04:38,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (1/1) ... [2022-04-28 09:04:38,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 09:04:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 09:04:38,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-28 09:04:38,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-28 09:04:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 09:04:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 09:04:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 09:04:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 09:04:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 09:04:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-28 09:04:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 09:04:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 09:04:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 09:04:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 09:04:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 09:04:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 09:04:38,248 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 09:04:38,249 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 09:04:38,350 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 09:04:38,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 09:04:38,355 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-28 09:04:38,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:04:38 BoogieIcfgContainer [2022-04-28 09:04:38,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 09:04:38,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 09:04:38,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 09:04:38,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 09:04:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:04:37" (1/3) ... [2022-04-28 09:04:38,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0b9aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:04:38, skipping insertion in model container [2022-04-28 09:04:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:04:38" (2/3) ... [2022-04-28 09:04:38,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0b9aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:04:38, skipping insertion in model container [2022-04-28 09:04:38,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:04:38" (3/3) ... [2022-04-28 09:04:38,375 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail_tTflag_arr_one_loop.c [2022-04-28 09:04:38,384 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-28 09:04:38,384 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 09:04:38,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 09:04:38,414 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@119a43d8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7d923de1 [2022-04-28 09:04:38,414 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 09:04:38,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-28 09:04:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-28 09:04:38,439 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 09:04:38,439 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 09:04:38,440 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 09:04:38,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 09:04:38,443 INFO L85 PathProgramCache]: Analyzing trace with hash -79096073, now seen corresponding path program 1 times [2022-04-28 09:04:38,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-28 09:04:38,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [739048026] [2022-04-28 09:04:38,456 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-28 09:04:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash -79096073, now seen corresponding path program 2 times [2022-04-28 09:04:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 09:04:38,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653997921] [2022-04-28 09:04:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 09:04:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 09:04:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:04:38,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 09:04:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 09:04:38,709 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#(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(39, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID [2022-04-28 09:04:38,709 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2022-04-28 09:04:38,709 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #51#return; {25#true} is VALID [2022-04-28 09:04:38,711 INFO L272 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {32#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-28 09:04:38,711 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#(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(39, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID [2022-04-28 09:04:38,711 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} assume true; {25#true} is VALID [2022-04-28 09:04:38,711 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {25#true} {25#true} #51#return; {25#true} is VALID [2022-04-28 09:04:38,712 INFO L272 TraceCheckUtils]: 4: Hoare triple {25#true} call #t~ret9 := main(); {25#true} is VALID [2022-04-28 09:04:38,712 INFO L290 TraceCheckUtils]: 5: Hoare triple {25#true} call ~#in~0.base, ~#in~0.offset := #Ultimate.allocOnStack(11);havoc ~s~0.base, ~s~0.offset;havoc ~c~0;havoc ~i~0;havoc ~j~0;havoc ~idx_in~0;~i~0 := 0; {25#true} is VALID [2022-04-28 09:04:38,712 INFO L290 TraceCheckUtils]: 6: Hoare triple {25#true} assume !(~i~0 % 4294967296 < 10); {25#true} is VALID [2022-04-28 09:04:38,713 INFO L290 TraceCheckUtils]: 7: Hoare triple {25#true} call write~int(0, ~#in~0.base, 10 + ~#in~0.offset, 1);~idx_in~0 := 0;~s~0.base, ~s~0.offset := ~#in~0.base, ~#in~0.offset;~i~0 := 0;call #t~mem6 := read~int(~#in~0.base, ~#in~0.offset + ~idx_in~0, 1);~c~0 := #t~mem6;havoc #t~mem6; {25#true} is VALID [2022-04-28 09:04:38,713 INFO L290 TraceCheckUtils]: 8: Hoare triple {25#true} assume !(48 <= ~c~0 % 256 && ~c~0 % 256 <= 57); {25#true} is VALID [2022-04-28 09:04:38,714 INFO L272 TraceCheckUtils]: 9: Hoare triple {25#true} call __VERIFIER_assert((if ~i~0 % 4294967296 >= 0 then 1 else 0)); {30#(= |__VERIFIER_assert_#in~cond| 1)} is VALID [2022-04-28 09:04:38,716 INFO L290 TraceCheckUtils]: 10: Hoare triple {30#(= |__VERIFIER_assert_#in~cond| 1)} ~cond := #in~cond; {31#(= __VERIFIER_assert_~cond 1)} is VALID [2022-04-28 09:04:38,716 INFO L290 TraceCheckUtils]: 11: Hoare triple {31#(= __VERIFIER_assert_~cond 1)} assume 0 == ~cond; {26#false} is VALID [2022-04-28 09:04:38,717 INFO L290 TraceCheckUtils]: 12: Hoare triple {26#false} assume !false; {26#false} is VALID [2022-04-28 09:04:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 09:04:38,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 09:04:38,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653997921] [2022-04-28 09:04:38,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653997921] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:04:38,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:04:38,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 09:04:38,721 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-28 09:04:38,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [739048026] [2022-04-28 09:04:38,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [739048026] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 09:04:38,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 09:04:38,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 09:04:38,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908129817] [2022-04-28 09:04:38,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 09:04:38,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 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 [2022-04-28 09:04:38,731 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 09:04:38,734 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:04:38,757 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:04:38,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 09:04:38,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-28 09:04:38,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 09:04:38,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 09:04:38,790 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:04:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:04:38,983 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2022-04-28 09:04:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 09:04:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 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 [2022-04-28 09:04:38,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 09:04:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:04:38,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-28 09:04:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:04:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 41 transitions. [2022-04-28 09:04:38,998 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 41 transitions. [2022-04-28 09:04:39,052 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:04:39,056 INFO L225 Difference]: With dead ends: 34 [2022-04-28 09:04:39,056 INFO L226 Difference]: Without dead ends: 0 [2022-04-28 09:04:39,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-04-28 09:04:39,064 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-28 09:04:39,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 33 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 09:04:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-28 09:04:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-28 09:04:39,093 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 09:04:39,094 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 09:04:39,094 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 09:04:39,094 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 09:04:39,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:04:39,095 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 09:04:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 09:04:39,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:04:39,095 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:04:39,095 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-28 09:04:39,096 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-28 09:04:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 09:04:39,096 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 09:04:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 09:04:39,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:04:39,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 09:04:39,097 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 09:04:39,097 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 09:04:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-28 09:04:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-28 09:04:39,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-04-28 09:04:39,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 09:04:39,098 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-28 09:04:39,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-28 09:04:39,099 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2022-04-28 09:04:39,099 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 09:04:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 09:04:39,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 09:04:39,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 09:04:39,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 09:04:39,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-28 09:04:39,174 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-28 09:04:39,175 INFO L899 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-28 09:04:39,175 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-28 09:04:39,175 INFO L902 garLoopResultBuilder]: At program point L29-2(lines 29 35) the Hoare annotation is: true [2022-04-28 09:04:39,175 INFO L902 garLoopResultBuilder]: At program point L29-3(lines 29 35) the Hoare annotation is: true [2022-04-28 09:04:39,175 INFO L902 garLoopResultBuilder]: At program point mainEXIT(lines 12 39) the Hoare annotation is: true [2022-04-28 09:04:39,175 INFO L902 garLoopResultBuilder]: At program point mainFINAL(lines 12 39) the Hoare annotation is: true [2022-04-28 09:04:39,175 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 12 39) the Hoare annotation is: true [2022-04-28 09:04:39,176 INFO L902 garLoopResultBuilder]: At program point L20-2(lines 20 22) the Hoare annotation is: true [2022-04-28 09:04:39,179 INFO L902 garLoopResultBuilder]: At program point L20-3(lines 20 22) the Hoare annotation is: true [2022-04-28 09:04:39,179 INFO L902 garLoopResultBuilder]: At program point L20-4(lines 20 22) the Hoare annotation is: true [2022-04-28 09:04:39,179 INFO L902 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,180 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-28 09:04:39,181 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2022-04-28 09:04:39,181 INFO L895 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-04-28 09:04:39,181 INFO L895 garLoopResultBuilder]: At program point L8(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-04-28 09:04:39,181 INFO L895 garLoopResultBuilder]: At program point L7(lines 7 9) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-04-28 09:04:39,181 INFO L895 garLoopResultBuilder]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (not (= |__VERIFIER_assert_#in~cond| 1)) (= __VERIFIER_assert_~cond 1)) [2022-04-28 09:04:39,181 INFO L895 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 1)) [2022-04-28 09:04:39,184 INFO L356 BasicCegarLoop]: Path program histogram: [2] [2022-04-28 09:04:39,185 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 09:04:39,188 WARN L170 areAnnotationChecker]: reach_errorENTRY has no Hoare annotation [2022-04-28 09:04:39,189 WARN L170 areAnnotationChecker]: reach_errorFINAL has no Hoare annotation [2022-04-28 09:04:39,192 INFO L163 areAnnotationChecker]: CFG has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 09:04:39,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:04:39 BoogieIcfgContainer [2022-04-28 09:04:39,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 09:04:39,202 INFO L158 Benchmark]: Toolchain (without parser) took 1321.13ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 135.7MB in the beginning and 193.7MB in the end (delta: -58.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 09:04:39,202 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 186.6MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 70.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 09:04:39,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.42ms. Allocated memory is still 186.6MB. Free memory was 135.6MB in the beginning and 161.8MB in the end (delta: -26.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-28 09:04:39,204 INFO L158 Benchmark]: Boogie Preprocessor took 35.83ms. Allocated memory is still 186.6MB. Free memory was 161.8MB in the beginning and 160.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-28 09:04:39,204 INFO L158 Benchmark]: RCFGBuilder took 245.56ms. Allocated memory is still 186.6MB. Free memory was 160.3MB in the beginning and 148.5MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-28 09:04:39,205 INFO L158 Benchmark]: TraceAbstraction took 841.48ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 148.0MB in the beginning and 193.7MB in the end (delta: -45.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 09:04:39,207 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 0.13ms. Allocated memory is still 186.6MB. Free memory was 152.0MB in the beginning and 151.9MB in the end (delta: 70.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 192.42ms. Allocated memory is still 186.6MB. Free memory was 135.6MB in the beginning and 161.8MB in the end (delta: -26.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.83ms. Allocated memory is still 186.6MB. Free memory was 161.8MB in the beginning and 160.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 245.56ms. Allocated memory is still 186.6MB. Free memory was 160.3MB in the beginning and 148.5MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 841.48ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 148.0MB in the beginning and 193.7MB in the end (delta: -45.7MB). 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 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 18 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 28 PreInvPairs, 38 NumberOfFragments, 55 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: !(\old(cond) == 1) || cond == 1 RESULT: Ultimate proved your program to be correct! [2022-04-28 09:04:39,233 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...