./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:31:54,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:31:55,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-02 12:31:55,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:31:55,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:31:55,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:31:55,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:31:55,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:31:55,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:31:55,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:31:55,126 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:31:55,126 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:31:55,127 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:31:55,127 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:31:55,127 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:31:55,127 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:31:55,128 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:31:55,128 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:31:55,128 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:31:55,129 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:31:55,129 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:31:55,137 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:31:55,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:31:55,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:31:55,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:31:55,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:31:55,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:31:55,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:31:55,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:31:55,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:31:55,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:31:55,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:31:55,142 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-02 12:31:55,142 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:31:55,142 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:31:55,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:31:55,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:31:55,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:31:55,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:31:55,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:31:55,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:55,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:31:55,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:31:55,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:31:55,147 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:31:55,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:31:55,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:31:55,148 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:31:55,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:31:55,148 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09edf41151ee2be1e615b82a5ff75107fc67a0fb206ce4e8ba7b647488d110c1 [2024-11-02 12:31:55,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:31:55,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:31:55,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:31:55,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:31:55,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:31:55,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/pthread-wmm/safe021_tso.i Unable to find full path for "g++" [2024-11-02 12:31:57,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:31:57,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:31:57,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/sv-benchmarks/c/pthread-wmm/safe021_tso.i [2024-11-02 12:31:57,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/data/6d9ccb1a6/5dbe41ec7a0a465294ac24760bdb62b8/FLAG1bffd3a42 [2024-11-02 12:31:58,115 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/data/6d9ccb1a6/5dbe41ec7a0a465294ac24760bdb62b8 [2024-11-02 12:31:58,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:31:58,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:31:58,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:58,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:31:58,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:31:58,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e0f632f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58, skipping insertion in model container [2024-11-02 12:31:58,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,229 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:31:58,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:58,716 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:31:58,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:31:58,818 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:31:58,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58 WrapperNode [2024-11-02 12:31:58,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:31:58,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:58,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:31:58,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:31:58,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,870 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-02 12:31:58,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:31:58,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:31:58,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:31:58,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:31:58,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:31:58,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:31:58,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:31:58,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:31:58,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (1/1) ... [2024-11-02 12:31:58,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:31:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:58,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:31:58,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:31:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-02 12:31:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:31:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-02 12:31:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-02 12:31:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-02 12:31:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-02 12:31:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-02 12:31:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-02 12:31:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:31:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-02 12:31:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:31:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:31:59,054 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-02 12:31:59,271 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:31:59,273 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:31:59,538 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-02 12:31:59,539 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:31:59,712 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:31:59,713 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:31:59,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:59 BoogieIcfgContainer [2024-11-02 12:31:59,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:31:59,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:31:59,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:31:59,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:31:59,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:31:58" (1/3) ... [2024-11-02 12:31:59,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:31:59, skipping insertion in model container [2024-11-02 12:31:59,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:31:58" (2/3) ... [2024-11-02 12:31:59,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ac158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:31:59, skipping insertion in model container [2024-11-02 12:31:59,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:59" (3/3) ... [2024-11-02 12:31:59,727 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_tso.i [2024-11-02 12:31:59,749 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:31:59,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-02 12:31:59,749 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-02 12:31:59,816 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-02 12:31:59,852 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 39 transitions, 90 flow [2024-11-02 12:32:00,343 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5229 states, 5203 states have (on average 3.507976167595618) internal successors, (18252), 5228 states have internal predecessors, (18252), 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) [2024-11-02 12:32:00,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:00,381 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@be09efc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:00,382 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-02 12:32:00,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 5229 states, 5203 states have (on average 3.507976167595618) internal successors, (18252), 5228 states have internal predecessors, (18252), 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) [2024-11-02 12:32:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 12:32:00,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:00,443 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:00,443 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-02 12:32:00,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:00,451 INFO L85 PathProgramCache]: Analyzing trace with hash 155919010, now seen corresponding path program 1 times [2024-11-02 12:32:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:00,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120578376] [2024-11-02 12:32:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:00,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:00,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:00,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120578376] [2024-11-02 12:32:00,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120578376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:00,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:00,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-02 12:32:00,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471221122] [2024-11-02 12:32:00,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:00,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:32:00,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:00,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:32:00,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:00,816 INFO L87 Difference]: Start difference. First operand has 5229 states, 5203 states have (on average 3.507976167595618) internal successors, (18252), 5228 states have internal predecessors, (18252), 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 has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 12:32:01,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:01,116 INFO L93 Difference]: Finished difference Result 6421 states and 21132 transitions. [2024-11-02 12:32:01,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:32:01,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-11-02 12:32:01,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:01,196 INFO L225 Difference]: With dead ends: 6421 [2024-11-02 12:32:01,197 INFO L226 Difference]: Without dead ends: 3651 [2024-11-02 12:32:01,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:32:01,219 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:01,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 28 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:01,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2024-11-02 12:32:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 3651. [2024-11-02 12:32:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3651 states, 3633 states have (on average 3.361959812826865) internal successors, (12214), 3650 states have internal predecessors, (12214), 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) [2024-11-02 12:32:01,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3651 states to 3651 states and 12214 transitions. [2024-11-02 12:32:01,513 INFO L78 Accepts]: Start accepts. Automaton has 3651 states and 12214 transitions. Word has length 7 [2024-11-02 12:32:01,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:01,513 INFO L471 AbstractCegarLoop]: Abstraction has 3651 states and 12214 transitions. [2024-11-02 12:32:01,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 12:32:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 12214 transitions. [2024-11-02 12:32:01,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:32:01,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:01,524 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:01,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:32:01,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-02 12:32:01,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:01,528 INFO L85 PathProgramCache]: Analyzing trace with hash -711949494, now seen corresponding path program 1 times [2024-11-02 12:32:01,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:01,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166933124] [2024-11-02 12:32:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:01,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:01,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:01,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166933124] [2024-11-02 12:32:01,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166933124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:01,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:01,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:32:01,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109518689] [2024-11-02 12:32:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:01,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:32:01,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:01,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:32:01,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:32:01,685 INFO L87 Difference]: Start difference. First operand 3651 states and 12214 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-02 12:32:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:01,950 INFO L93 Difference]: Finished difference Result 3819 states and 12526 transitions. [2024-11-02 12:32:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:32:01,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-11-02 12:32:01,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:01,981 INFO L225 Difference]: With dead ends: 3819 [2024-11-02 12:32:01,981 INFO L226 Difference]: Without dead ends: 3181 [2024-11-02 12:32:01,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:32:01,985 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 40 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:01,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 42 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 12:32:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2024-11-02 12:32:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 3097. [2024-11-02 12:32:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3088 states have (on average 3.3552461139896375) internal successors, (10361), 3096 states have internal predecessors, (10361), 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) [2024-11-02 12:32:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 10361 transitions. [2024-11-02 12:32:02,182 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 10361 transitions. Word has length 14 [2024-11-02 12:32:02,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:02,184 INFO L471 AbstractCegarLoop]: Abstraction has 3097 states and 10361 transitions. [2024-11-02 12:32:02,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-02 12:32:02,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 10361 transitions. [2024-11-02 12:32:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-02 12:32:02,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:02,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:02,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:32:02,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-02 12:32:02,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:02,193 INFO L85 PathProgramCache]: Analyzing trace with hash -711949495, now seen corresponding path program 1 times [2024-11-02 12:32:02,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:02,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163462770] [2024-11-02 12:32:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:02,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:02,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:02,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163462770] [2024-11-02 12:32:02,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163462770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:02,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:02,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:32:02,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794807077] [2024-11-02 12:32:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:02,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:32:02,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:32:02,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:32:02,323 INFO L87 Difference]: Start difference. First operand 3097 states and 10361 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-02 12:32:02,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:02,432 INFO L93 Difference]: Finished difference Result 3097 states and 10361 transitions. [2024-11-02 12:32:02,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:32:02,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) Word has length 14 [2024-11-02 12:32:02,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:02,456 INFO L225 Difference]: With dead ends: 3097 [2024-11-02 12:32:02,457 INFO L226 Difference]: Without dead ends: 2543 [2024-11-02 12:32:02,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:32:02,462 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:02,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 56 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2024-11-02 12:32:02,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2543. [2024-11-02 12:32:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2540 states have (on average 3.3661417322834644) internal successors, (8550), 2542 states have internal predecessors, (8550), 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) [2024-11-02 12:32:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 8550 transitions. [2024-11-02 12:32:02,626 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 8550 transitions. Word has length 14 [2024-11-02 12:32:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:02,627 INFO L471 AbstractCegarLoop]: Abstraction has 2543 states and 8550 transitions. [2024-11-02 12:32:02,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-11-02 12:32:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 8550 transitions. [2024-11-02 12:32:02,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:32:02,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:02,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:32:02,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-02 12:32:02,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-02 12:32:02,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1509729072, now seen corresponding path program 1 times [2024-11-02 12:32:02,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:02,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998045945] [2024-11-02 12:32:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:02,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:32:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:32:02,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:32:02,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:32:02,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998045945] [2024-11-02 12:32:02,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998045945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:32:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:32:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:32:02,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479403073] [2024-11-02 12:32:02,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:32:02,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-02 12:32:02,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:32:02,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-02 12:32:02,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:32:02,838 INFO L87 Difference]: Start difference. First operand 2543 states and 8550 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-02 12:32:02,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:32:02,951 INFO L93 Difference]: Finished difference Result 2543 states and 8550 transitions. [2024-11-02 12:32:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 12:32:02,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) Word has length 21 [2024-11-02 12:32:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:32:02,963 INFO L225 Difference]: With dead ends: 2543 [2024-11-02 12:32:02,966 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:32:02,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:32:02,977 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 54 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:32:02,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 42 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:32:02,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:32:02,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:32:02,982 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) [2024-11-02 12:32:02,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:32:02,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-11-02 12:32:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:32:02,989 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:32:02,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-02 12:32:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:32:02,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:32:02,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-02 12:32:02,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-02 12:32:02,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-02 12:32:02,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-02 12:32:02,996 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-02 12:32:02,996 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-02 12:32:02,997 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-02 12:32:02,998 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-02 12:32:02,998 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-02 12:32:03,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-02 12:32:03,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-02 12:32:03,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-02 12:32:03,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-02 12:32:03,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-02 12:32:03,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-02 12:32:03,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-02 12:32:03,007 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-02 12:32:03,015 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-02 12:32:03,015 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:32:03,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:32:03 BasicIcfg [2024-11-02 12:32:03,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:32:03,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:32:03,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:32:03,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:32:03,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:31:59" (3/4) ... [2024-11-02 12:32:03,024 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:32:03,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-02 12:32:03,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-02 12:32:03,028 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-02 12:32:03,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-02 12:32:03,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-02 12:32:03,036 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:32:03,037 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 12:32:03,121 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:32:03,122 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:32:03,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:32:03,123 INFO L158 Benchmark]: Toolchain (without parser) took 5000.01ms. Allocated memory was 140.5MB in the beginning and 310.4MB in the end (delta: 169.9MB). Free memory was 104.0MB in the beginning and 151.3MB in the end (delta: -47.3MB). Peak memory consumption was 124.2MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,123 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 140.5MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:32:03,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.88ms. Allocated memory is still 140.5MB. Free memory was 104.0MB in the beginning and 81.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.02ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,124 INFO L158 Benchmark]: Boogie Preprocessor took 46.47ms. Allocated memory is still 140.5MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,125 INFO L158 Benchmark]: RCFGBuilder took 793.12ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 55.8MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,125 INFO L158 Benchmark]: TraceAbstraction took 3303.69ms. Allocated memory was 140.5MB in the beginning and 310.4MB in the end (delta: 169.9MB). Free memory was 54.8MB in the beginning and 156.5MB in the end (delta: -101.8MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,125 INFO L158 Benchmark]: Witness Printer took 101.27ms. Allocated memory is still 310.4MB. Free memory was 155.5MB in the beginning and 151.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:32:03,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 140.5MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 694.88ms. Allocated memory is still 140.5MB. Free memory was 104.0MB in the beginning and 81.5MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.02ms. Allocated memory is still 140.5MB. Free memory was 81.5MB in the beginning and 79.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.47ms. Allocated memory is still 140.5MB. Free memory was 79.9MB in the beginning and 78.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 793.12ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 55.8MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3303.69ms. Allocated memory was 140.5MB in the beginning and 310.4MB in the end (delta: 169.9MB). Free memory was 54.8MB in the beginning and 156.5MB in the end (delta: -101.8MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. * Witness Printer took 101.27ms. Allocated memory is still 310.4MB. Free memory was 155.5MB in the beginning and 151.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 748]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 763]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152 mSDsluCounter, 168 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 70 mSDtfsCounter, 201 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5229occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 84 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 12:32:03,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41437ed3-ec48-4944-975e-d3ec6a5d2927/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE