./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a30aa210ed4a7c8ee647a70aef136aef282e5eccb07388ecda6495e33bc30b6d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:17:19,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:17:19,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 14:17:19,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:17:19,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:17:19,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:17:19,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:17:19,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:17:19,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:17:19,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:17:19,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:17:19,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:17:19,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:17:19,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:17:19,836 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:17:19,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:17:19,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:17:19,838 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:17:19,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:17:19,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:17:19,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:17:19,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:17:19,840 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> a30aa210ed4a7c8ee647a70aef136aef282e5eccb07388ecda6495e33bc30b6d [2024-12-02 14:17:20,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:17:20,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:17:20,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:17:20,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:17:20,069 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:17:20,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-12-02 14:17:22,849 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/data/68472955b/510c832b3a0b4b9ba31a8454bb7f54c7/FLAGf901a608b [2024-12-02 14:17:23,089 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:17:23,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-12-02 14:17:23,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/data/68472955b/510c832b3a0b4b9ba31a8454bb7f54c7/FLAGf901a608b [2024-12-02 14:17:23,112 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/data/68472955b/510c832b3a0b4b9ba31a8454bb7f54c7 [2024-12-02 14:17:23,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:17:23,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:17:23,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:17:23,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:17:23,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:17:23,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44710b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23, skipping insertion in model container [2024-12-02 14:17:23,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:17:23,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:17:23,382 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:17:23,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:17:23,465 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:17:23,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23 WrapperNode [2024-12-02 14:17:23,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:17:23,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:17:23,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:17:23,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:17:23,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,520 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 512 [2024-12-02 14:17:23,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:17:23,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:17:23,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:17:23,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:17:23,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,534 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,553 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:17:23,553 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,553 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,566 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:17:23,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:17:23,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:17:23,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:17:23,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (1/1) ... [2024-12-02 14:17:23,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:17:23,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:23,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:17:23,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:17:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-12-02 14:17:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-12-02 14:17:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:17:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-12-02 14:17:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-12-02 14:17:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-12-02 14:17:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:17:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-12-02 14:17:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-12-02 14:17:23,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:17:23,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:17:23,642 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-12-02 14:17:23,642 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-12-02 14:17:23,741 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:17:23,743 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:17:24,334 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-12-02 14:17:24,334 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:17:24,349 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:17:24,349 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 14:17:24,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:17:24 BoogieIcfgContainer [2024-12-02 14:17:24,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:17:24,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:17:24,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:17:24,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:17:24,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:17:23" (1/3) ... [2024-12-02 14:17:24,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331c8790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:17:24, skipping insertion in model container [2024-12-02 14:17:24,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:17:23" (2/3) ... [2024-12-02 14:17:24,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@331c8790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:17:24, skipping insertion in model container [2024-12-02 14:17:24,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:17:24" (3/3) ... [2024-12-02 14:17:24,358 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c [2024-12-02 14:17:24,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:17:24,372 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_ActiveStandby.4_1.ufo.BOUNDED-10.pals.c that has 8 procedures, 184 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-12-02 14:17:24,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:17:24,438 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=PETRI_NET, 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;@6535385b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:17:24,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 14:17:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 145 states have internal predecessors, (220), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 14:17:24,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 14:17:24,455 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:24,456 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:17:24,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:17:24,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:24,461 INFO L85 PathProgramCache]: Analyzing trace with hash -2119532900, now seen corresponding path program 1 times [2024-12-02 14:17:24,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:24,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404794450] [2024-12-02 14:17:24,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 14:17:25,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:25,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404794450] [2024-12-02 14:17:25,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404794450] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:17:25,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829017845] [2024-12-02 14:17:25,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:25,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:25,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:25,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:17:25,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:17:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:25,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 14:17:25,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:17:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:17:25,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:17:25,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829017845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:17:25,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:17:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 14:17:25,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371849472] [2024-12-02 14:17:25,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:17:25,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:17:25,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:25,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:17:25,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:17:25,365 INFO L87 Difference]: Start difference. First operand has 184 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 145 states have internal predecessors, (220), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:17:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:25,630 INFO L93 Difference]: Finished difference Result 409 states and 647 transitions. [2024-12-02 14:17:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:17:25,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-12-02 14:17:25,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:25,642 INFO L225 Difference]: With dead ends: 409 [2024-12-02 14:17:25,642 INFO L226 Difference]: Without dead ends: 231 [2024-12-02 14:17:25,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:17:25,650 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 409 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:25,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 728 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:17:25,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-12-02 14:17:25,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-12-02 14:17:25,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 181 states have (on average 1.5082872928176796) internal successors, (273), 182 states have internal predecessors, (273), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 14:17:25,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 343 transitions. [2024-12-02 14:17:25,712 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 343 transitions. Word has length 72 [2024-12-02 14:17:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:25,713 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 343 transitions. [2024-12-02 14:17:25,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:17:25,713 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 343 transitions. [2024-12-02 14:17:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 14:17:25,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:25,718 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:17:25,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:17:25,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 14:17:25,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:17:25,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:25,919 INFO L85 PathProgramCache]: Analyzing trace with hash 372246335, now seen corresponding path program 1 times [2024-12-02 14:17:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:25,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919372375] [2024-12-02 14:17:25,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 14:17:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919372375] [2024-12-02 14:17:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919372375] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:17:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139000074] [2024-12-02 14:17:26,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:26,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:26,184 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:17:26,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:17:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:26,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 14:17:26,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:17:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:17:26,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:17:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139000074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:17:26,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:17:26,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 14:17:26,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141002871] [2024-12-02 14:17:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:17:26,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:17:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:26,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:17:26,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:17:26,475 INFO L87 Difference]: Start difference. First operand 228 states and 343 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:17:26,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:26,684 INFO L93 Difference]: Finished difference Result 392 states and 589 transitions. [2024-12-02 14:17:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:17:26,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-12-02 14:17:26,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:26,688 INFO L225 Difference]: With dead ends: 392 [2024-12-02 14:17:26,688 INFO L226 Difference]: Without dead ends: 231 [2024-12-02 14:17:26,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:17:26,690 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 391 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:26,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 716 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:17:26,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-12-02 14:17:26,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-12-02 14:17:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 181 states have (on average 1.5027624309392265) internal successors, (272), 182 states have internal predecessors, (272), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 14:17:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 342 transitions. [2024-12-02 14:17:26,719 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 342 transitions. Word has length 73 [2024-12-02 14:17:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:26,720 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 342 transitions. [2024-12-02 14:17:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 14:17:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 342 transitions. [2024-12-02 14:17:26,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 14:17:26,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:26,723 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:17:26,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:17:26,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:26,924 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:17:26,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:26,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2104345615, now seen corresponding path program 1 times [2024-12-02 14:17:26,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:26,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107467965] [2024-12-02 14:17:26,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:26,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 14:17:27,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107467965] [2024-12-02 14:17:27,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107467965] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:17:27,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223179960] [2024-12-02 14:17:27,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:27,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:27,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:27,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:17:27,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:17:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:27,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:17:27,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:17:27,341 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 14:17:27,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:17:27,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223179960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:17:27,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:17:27,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-02 14:17:27,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962525013] [2024-12-02 14:17:27,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:17:27,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:17:27,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:27,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:17:27,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:17:27,343 INFO L87 Difference]: Start difference. First operand 228 states and 342 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:17:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:27,378 INFO L93 Difference]: Finished difference Result 228 states and 342 transitions. [2024-12-02 14:17:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:17:27,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-12-02 14:17:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:27,381 INFO L225 Difference]: With dead ends: 228 [2024-12-02 14:17:27,382 INFO L226 Difference]: Without dead ends: 227 [2024-12-02 14:17:27,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:17:27,383 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 105 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:27,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 641 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:17:27,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-12-02 14:17:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-12-02 14:17:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 181 states have (on average 1.4972375690607735) internal successors, (271), 181 states have internal predecessors, (271), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 14:17:27,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 341 transitions. [2024-12-02 14:17:27,406 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 341 transitions. Word has length 74 [2024-12-02 14:17:27,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:27,406 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 341 transitions. [2024-12-02 14:17:27,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:17:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 341 transitions. [2024-12-02 14:17:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 14:17:27,408 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:27,409 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:17:27,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 14:17:27,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:27,609 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:17:27,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:27,610 INFO L85 PathProgramCache]: Analyzing trace with hash 810205138, now seen corresponding path program 1 times [2024-12-02 14:17:27,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:27,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859727476] [2024-12-02 14:17:27,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:27,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 14:17:27,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859727476] [2024-12-02 14:17:27,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859727476] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:17:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199504769] [2024-12-02 14:17:27,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:27,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:27,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:17:27,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:17:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:27,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:17:27,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:17:28,028 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 14:17:28,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:17:28,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199504769] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:17:28,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:17:28,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-02 14:17:28,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888846213] [2024-12-02 14:17:28,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:17:28,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:17:28,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:28,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:17:28,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:17:28,030 INFO L87 Difference]: Start difference. First operand 227 states and 341 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:17:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:28,073 INFO L93 Difference]: Finished difference Result 308 states and 473 transitions. [2024-12-02 14:17:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:17:28,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-12-02 14:17:28,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:28,076 INFO L225 Difference]: With dead ends: 308 [2024-12-02 14:17:28,076 INFO L226 Difference]: Without dead ends: 307 [2024-12-02 14:17:28,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:17:28,077 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 99 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:28,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 799 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:17:28,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-12-02 14:17:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-12-02 14:17:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 238 states have (on average 1.495798319327731) internal successors, (356), 238 states have internal predecessors, (356), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 14:17:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 472 transitions. [2024-12-02 14:17:28,100 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 472 transitions. Word has length 75 [2024-12-02 14:17:28,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:28,101 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 472 transitions. [2024-12-02 14:17:28,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 14:17:28,101 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 472 transitions. [2024-12-02 14:17:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 14:17:28,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:17:28,104 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:17:28,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:17:28,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:28,305 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:17:28,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:17:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1753749617, now seen corresponding path program 1 times [2024-12-02 14:17:28,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:17:28,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149337682] [2024-12-02 14:17:28,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:28,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:17:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-12-02 14:17:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:17:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149337682] [2024-12-02 14:17:28,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149337682] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:17:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018008090] [2024-12-02 14:17:28,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:17:28,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:28,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:17:28,485 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:17:28,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:17:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:17:28,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 14:17:28,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:17:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 14:17:28,851 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:17:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 14:17:29,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018008090] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:17:29,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:17:29,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-12-02 14:17:29,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452692054] [2024-12-02 14:17:29,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:17:29,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 14:17:29,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:17:29,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 14:17:29,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:17:29,077 INFO L87 Difference]: Start difference. First operand 307 states and 472 transitions. Second operand has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-12-02 14:17:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:17:29,391 INFO L93 Difference]: Finished difference Result 714 states and 1106 transitions. [2024-12-02 14:17:29,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 14:17:29,392 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) Word has length 138 [2024-12-02 14:17:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:17:29,393 INFO L225 Difference]: With dead ends: 714 [2024-12-02 14:17:29,393 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:17:29,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:17:29,396 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 736 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:17:29,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 2027 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:17:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:17:29,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:17:29,397 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) [2024-12-02 14:17:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:17:29,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2024-12-02 14:17:29,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:17:29,398 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:17:29,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.692307692307692) internal successors, (178), 14 states have internal predecessors, (178), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-12-02 14:17:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:17:29,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:17:29,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 14:17:29,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 14:17:29,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:17:29,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:17:29,605 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 14:17:29,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:17:30,245 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:17:30,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:17:30 BoogieIcfgContainer [2024-12-02 14:17:30,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:17:30,260 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:17:30,260 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:17:30,260 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:17:30,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:17:24" (3/4) ... [2024-12-02 14:17:30,263 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:17:30,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-12-02 14:17:30,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-12-02 14:17:30,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-12-02 14:17:30,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-12-02 14:17:30,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-12-02 14:17:30,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 14:17:30,269 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-12-02 14:17:30,279 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-12-02 14:17:30,280 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 14:17:30,281 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:17:30,281 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:17:30,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:17:30,403 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:17:30,403 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:17:30,404 INFO L158 Benchmark]: Toolchain (without parser) took 7288.21ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 92.3MB in the beginning and 136.1MB in the end (delta: -43.8MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,405 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:17:30,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.39ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 74.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.04ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 70.9MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,406 INFO L158 Benchmark]: Boogie Preprocessor took 62.93ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 66.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:17:30,406 INFO L158 Benchmark]: RCFGBuilder took 765.89ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 79.0MB in the end (delta: -12.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,407 INFO L158 Benchmark]: TraceAbstraction took 5907.59ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 78.4MB in the beginning and 144.4MB in the end (delta: -66.0MB). Peak memory consumption was 113.8MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,407 INFO L158 Benchmark]: Witness Printer took 143.39ms. Allocated memory is still 209.7MB. Free memory was 144.4MB in the beginning and 136.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:17:30,409 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.39ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 74.4MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.04ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 70.9MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.93ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 66.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 765.89ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 79.0MB in the end (delta: -12.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5907.59ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 78.4MB in the beginning and 144.4MB in the end (delta: -66.0MB). Peak memory consumption was 113.8MB. Max. memory is 16.1GB. * Witness Printer took 143.39ms. Allocated memory is still 209.7MB. Free memory was 144.4MB in the beginning and 136.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. 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: 598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 184 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1842 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1740 mSDsluCounter, 4911 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3625 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 340 IncrementalHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 1286 mSDtfsCounter, 340 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 598 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=307occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 991 ConstructedInterpolants, 0 QuantifiedInterpolants, 1697 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2508 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 237/325 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: (((0 <= i2) && (i2 <= 2147483646)) && (((short) nomsg + 1) <= 0)) RESULT: Ultimate proved your program to be correct! [2024-12-02 14:17:30,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c41cbc59-99a5-43f2-bf1b-b9f812616224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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