/usr/bin/java -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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 14:52:15,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 14:52:15,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 14:52:15,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 14:52:15,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 14:52:15,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 14:52:15,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 14:52:15,588 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 14:52:15,601 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 14:52:15,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 14:52:15,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 14:52:15,603 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 14:52:15,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 14:52:15,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 14:52:15,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 14:52:15,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 14:52:15,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 14:52:15,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 14:52:15,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 14:52:15,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 14:52:15,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 14:52:15,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 14:52:15,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 14:52:15,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 14:52:15,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 14:52:15,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 14:52:15,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:52:15,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 14:52:15,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 14:52:15,607 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 14:52:15,607 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 14:52:15,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 14:52:15,607 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 14:52:15,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 14:52:15,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 14:52:15,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 14:52:15,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 14:52:15,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 14:52:15,826 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 14:52:15,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-04-06 14:52:15,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86fcaccc9/88974059020b4288a6d1b793b1555a83/FLAGa5297f4b3 [2022-04-06 14:52:16,292 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 14:52:16,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/net_reset.c [2022-04-06 14:52:16,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86fcaccc9/88974059020b4288a6d1b793b1555a83/FLAGa5297f4b3 [2022-04-06 14:52:16,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86fcaccc9/88974059020b4288a6d1b793b1555a83 [2022-04-06 14:52:16,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 14:52:16,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 14:52:16,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 14:52:16,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 14:52:16,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 14:52:16,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:52:16" (1/1) ... [2022-04-06 14:52:16,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd4fdb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:16, skipping insertion in model container [2022-04-06 14:52:16,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:52:16" (1/1) ... [2022-04-06 14:52:16,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 14:52:16,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 14:52:16,506 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-crafted-1/net_reset.c[4546,4559] [2022-04-06 14:52:16,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:52:17,287 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 14:52:17,324 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-crafted-1/net_reset.c[4546,4559] [2022-04-06 14:52:17,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:52:17,354 INFO L208 MainTranslator]: Completed translation [2022-04-06 14:52:17,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17 WrapperNode [2022-04-06 14:52:17,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 14:52:17,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 14:52:17,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 14:52:17,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 14:52:17,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 14:52:17,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 14:52:17,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 14:52:17,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 14:52:17,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (1/1) ... [2022-04-06 14:52:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:52:17,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:52:17,453 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) [2022-04-06 14:52:17,522 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 [2022-04-06 14:52:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 14:52:17,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reset [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure net_send_batch [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure net_reopen [2022-04-06 14:52:17,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 14:52:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 14:52:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 14:52:17,538 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 14:52:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 14:52:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure net_reset [2022-04-06 14:52:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure net_reopen [2022-04-06 14:52:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure net_send_batch [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure addrcmp [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 14:52:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 14:52:17,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 14:52:17,695 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 14:52:17,697 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 14:52:17,843 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 14:52:17,851 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 14:52:17,851 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 14:52:17,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:52:17 BoogieIcfgContainer [2022-04-06 14:52:17,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 14:52:17,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 14:52:17,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 14:52:17,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 14:52:17,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:52:16" (1/3) ... [2022-04-06 14:52:17,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b30689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:52:17, skipping insertion in model container [2022-04-06 14:52:17,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:52:17" (2/3) ... [2022-04-06 14:52:17,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b30689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:52:17, skipping insertion in model container [2022-04-06 14:52:17,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:52:17" (3/3) ... [2022-04-06 14:52:17,864 INFO L111 eAbstractionObserver]: Analyzing ICFG net_reset.c [2022-04-06 14:52:17,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 14:52:17,869 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 14:52:17,923 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 14:52:17,931 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 [2022-04-06 14:52:17,932 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 14:52:17,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-06 14:52:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-06 14:52:17,966 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:52:17,966 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:52:17,967 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:52:17,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:52:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1439756030, now seen corresponding path program 1 times [2022-04-06 14:52:17,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:17,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1956858765] [2022-04-06 14:52:17,993 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:52:17,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1439756030, now seen corresponding path program 2 times [2022-04-06 14:52:17,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:52:17,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576785176] [2022-04-06 14:52:17,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:52:17,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:52:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:52:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-04-06 14:52:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:18,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:52:18,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576785176] [2022-04-06 14:52:18,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576785176] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:52:18,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:52:18,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 14:52:18,410 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:52:18,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1956858765] [2022-04-06 14:52:18,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1956858765] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:52:18,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:52:18,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 14:52:18,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175099499] [2022-04-06 14:52:18,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:52:18,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 14:52:18,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:18,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 14:52:18,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-04-06 14:52:18,451 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 27 states have internal predecessors, (34), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 14:52:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:52:18,652 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-04-06 14:52:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 14:52:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-04-06 14:52:18,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:52:18,660 INFO L225 Difference]: With dead ends: 52 [2022-04-06 14:52:18,660 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 14:52:18,663 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-04-06 14:52:18,665 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 39 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:52:18,666 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 42 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-06 14:52:18,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 14:52:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 14:52:18,684 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) [2022-04-06 14:52:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 14:52:18,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-04-06 14:52:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:52:18,686 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 14:52:18,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-06 14:52:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 14:52:18,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 14:52:18,688 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 14:52:18,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 14:52:18,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-06 14:52:19,005 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-04-06 14:52:19,006 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-04-06 14:52:19,006 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-04-06 14:52:19,006 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 233 237) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,006 INFO L878 garLoopResultBuilder]: At program point mainFINAL(lines 233 237) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,007 INFO L878 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,007 INFO L878 garLoopResultBuilder]: At program point L235-1(line 235) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,007 INFO L878 garLoopResultBuilder]: At program point mainEXIT(lines 233 237) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,007 INFO L878 garLoopResultBuilder]: At program point net_reopenEXIT(lines 216 231) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,007 INFO L878 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point net_reopenENTRY(lines 216 231) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point net_reopenFINAL(lines 216 231) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point L218(lines 218 228) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,008 INFO L878 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point L229-1(line 229) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (and (= |old(~batch_at~0)| ~batch_at~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0))) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point net_resetENTRY(lines 200 204) the Hoare annotation is: (or (= |old(~batch_at~0)| ~batch_at~0) (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0))) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point net_resetEXIT(lines 200 204) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point net_resetFINAL(lines 200 204) the Hoare annotation is: (or (not (<= (+ |old(~batch_at~0)| 1) ~fstTTL~0)) (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,009 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2022-04-06 14:52:19,010 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~batch_at~0)| ~batch_at~0) (= |~#unspec_addr~0.base| |old(~#unspec_addr~0.base)|) (= ~fstTTL~0 |old(~fstTTL~0)|) (= |~#host~0.offset| |old(~#host~0.offset)|) (= |#memory_int| |old(#memory_int)|) (= |~#host~0.base| |old(~#host~0.base)|) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (= |old(~#unspec_addr~0.offset)| |~#unspec_addr~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-06 14:52:19,010 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2022-04-06 14:52:19,010 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2022-04-06 14:52:19,010 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2022-04-06 14:52:19,010 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: (<= (+ ~batch_at~0 1) ~fstTTL~0) [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point L194-2(lines 193 198) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 193 198) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 193 198) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 195) the Hoare annotation is: true [2022-04-06 14:52:19,011 INFO L885 garLoopResultBuilder]: At program point L194(lines 194 196) the Hoare annotation is: true [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point net_send_batchENTRY(lines 205 215) the Hoare annotation is: (or (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0) (not (<= (+ ~batch_at~0 1) ~fstTTL~0))) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point net_send_batchEXIT(lines 205 215) the Hoare annotation is: (or (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= (+ ~batch_at~0 1) ~fstTTL~0))) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point net_send_batchFINAL(lines 205 215) the Hoare annotation is: (or (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= (+ ~batch_at~0 1) ~fstTTL~0))) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point L210-1(line 210) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point L210-2(lines 210 211) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,012 INFO L878 garLoopResultBuilder]: At program point L208-2(lines 208 213) the Hoare annotation is: (not (<= (+ ~batch_at~0 1) ~fstTTL~0)) [2022-04-06 14:52:19,013 INFO L878 garLoopResultBuilder]: At program point L208-3(lines 208 213) the Hoare annotation is: (or (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= (+ ~batch_at~0 1) ~fstTTL~0))) [2022-04-06 14:52:19,013 INFO L878 garLoopResultBuilder]: At program point L208-4(lines 208 213) the Hoare annotation is: (or (and (<= ~batch_at~0 net_send_batch_~i~0) (= |old(~__tmpTR__int_1~0)| ~__tmpTR__int_1~0)) (not (<= (+ ~batch_at~0 1) ~fstTTL~0))) [2022-04-06 14:52:19,019 INFO L719 BasicCegarLoop]: Path program histogram: [2] [2022-04-06 14:52:19,020 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 14:52:19,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 02:52:19 BoogieIcfgContainer [2022-04-06 14:52:19,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 14:52:19,037 INFO L158 Benchmark]: Toolchain (without parser) took 2723.76ms. Allocated memory was 196.1MB in the beginning and 260.0MB in the end (delta: 64.0MB). Free memory was 145.8MB in the beginning and 99.3MB in the end (delta: 46.5MB). Peak memory consumption was 110.7MB. Max. memory is 8.0GB. [2022-04-06 14:52:19,038 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 14:52:19,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1039.90ms. Allocated memory was 196.1MB in the beginning and 260.0MB in the end (delta: 64.0MB). Free memory was 145.6MB in the beginning and 134.0MB in the end (delta: 11.6MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. [2022-04-06 14:52:19,039 INFO L158 Benchmark]: Boogie Preprocessor took 56.54ms. Allocated memory is still 260.0MB. Free memory was 134.0MB in the beginning and 132.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-06 14:52:19,039 INFO L158 Benchmark]: RCFGBuilder took 439.91ms. Allocated memory is still 260.0MB. Free memory was 132.4MB in the beginning and 154.4MB in the end (delta: -21.9MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-04-06 14:52:19,040 INFO L158 Benchmark]: TraceAbstraction took 1181.46ms. Allocated memory is still 260.0MB. Free memory was 153.8MB in the beginning and 99.3MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2022-04-06 14:52:19,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1039.90ms. Allocated memory was 196.1MB in the beginning and 260.0MB in the end (delta: 64.0MB). Free memory was 145.6MB in the beginning and 134.0MB in the end (delta: 11.6MB). Peak memory consumption was 94.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.54ms. Allocated memory is still 260.0MB. Free memory was 134.0MB in the beginning and 132.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 439.91ms. Allocated memory is still 260.0MB. Free memory was 132.4MB in the beginning and 154.4MB in the end (delta: -21.9MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1181.46ms. Allocated memory is still 260.0MB. Free memory was 153.8MB in the beginning and 99.3MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 195]: 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 8 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 24 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 40 LocationsWithAnnotation, 40 PreInvPairs, 52 NumberOfFragments, 383 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 40 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 0.3s 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: 208]: Loop Invariant Derived loop invariant: (batch_at <= i && \old(__tmpTR__int_1) == __tmpTR__int_1) || !(batch_at + 1 <= fstTTL) - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: !(\old(batch_at) + 1 <= fstTTL) || (\old(batch_at) == batch_at && \old(__tmpTR__int_1) == __tmpTR__int_1) - ProcedureContractResult [Line: 233]: Procedure Contract for main Derived contract for procedure main: !(\old(batch_at) + 1 <= fstTTL) || batch_at + 1 <= fstTTL - ProcedureContractResult [Line: 193]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - ProcedureContractResult [Line: 205]: Procedure Contract for net_send_batch Derived contract for procedure net_send_batch: (batch_at <= i && \old(__tmpTR__int_1) == __tmpTR__int_1) || !(batch_at + 1 <= fstTTL) - ProcedureContractResult [Line: 216]: Procedure Contract for net_reopen Derived contract for procedure net_reopen: !(\old(batch_at) + 1 <= fstTTL) || batch_at + 1 <= fstTTL - ProcedureContractResult [Line: 200]: Procedure Contract for net_reset Derived contract for procedure net_reset: !(\old(batch_at) + 1 <= fstTTL) || batch_at + 1 <= fstTTL RESULT: Ultimate proved your program to be correct! [2022-04-06 14:52:19,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...