./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_peterson.i --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_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/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_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/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_a09a691f-3111-4a22-9253-a6357d863ad7/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 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:33:05,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:33:05,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 13:33:05,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:33:05,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:33:05,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:33:05,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:33:05,228 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:33:05,228 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:33:05,228 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:33:05,228 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:33:05,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:33:05,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:33:05,229 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:33:05,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:33:05,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:33:05,231 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:05,231 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:33:05,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:05,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:33:05,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:33:05,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:33:05,233 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_a09a691f-3111-4a22-9253-a6357d863ad7/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 -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-12-02 13:33:05,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:33:05,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:33:05,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:33:05,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:33:05,445 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:33:05,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-12-02 13:33:08,102 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/data/d4b374f74/5f25d34a20574a999b8414a432685818/FLAGfd1b64345 [2024-12-02 13:33:08,348 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:33:08,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-12-02 13:33:08,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/data/d4b374f74/5f25d34a20574a999b8414a432685818/FLAGfd1b64345 [2024-12-02 13:33:08,676 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/data/d4b374f74/5f25d34a20574a999b8414a432685818 [2024-12-02 13:33:08,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:33:08,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:33:08,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:33:08,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:33:08,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:33:08,683 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:33:08" (1/1) ... [2024-12-02 13:33:08,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67eae91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:08, skipping insertion in model container [2024-12-02 13:33:08,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:33:08" (1/1) ... [2024-12-02 13:33:08,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:33:09,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:33:09,037 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:33:09,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:33:09,150 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:33:09,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09 WrapperNode [2024-12-02 13:33:09,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:33:09,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:33:09,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:33:09,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:33:09,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,194 INFO L138 Inliner]: procedures = 145, calls = 286, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 447 [2024-12-02 13:33:09,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:33:09,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:33:09,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:33:09,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:33:09,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,234 INFO L175 MemorySlicer]: Split 156 memory accesses to 18 slices as follows [2, 8, 8, 5, 8, 13, 29, 21, 7, 7, 7, 7, 13, 5, 5, 6, 0, 5]. 19 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 3, 3, 0, 3, 0, 9, 9, 3, 3, 3, 3, 0, 0, 0, 2, 0, 0]. The 39 writes are split as follows [0, 2, 2, 1, 2, 1, 11, 6, 2, 2, 2, 2, 1, 1, 1, 2, 0, 1]. [2024-12-02 13:33:09,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,258 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,269 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:33:09,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:33:09,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:33:09,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:33:09,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (1/1) ... [2024-12-02 13:33:09,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:33:09,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:33:09,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:33:09,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 13:33:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:33:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 13:33:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 13:33:09,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 13:33:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-12-02 13:33:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 13:33:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 13:33:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 13:33:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 13:33:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 13:33:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-12-02 13:33:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-12-02 13:33:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-12-02 13:33:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 13:33:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-12-02 13:33:09,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:33:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 13:33:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:33:09,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:33:09,565 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:33:09,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:33:10,517 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-12-02 13:33:10,517 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:33:10,529 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:33:10,529 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:33:10,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:33:10 BoogieIcfgContainer [2024-12-02 13:33:10,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:33:10,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:33:10,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:33:10,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:33:10,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:33:08" (1/3) ... [2024-12-02 13:33:10,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486066ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:33:10, skipping insertion in model container [2024-12-02 13:33:10,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:33:09" (2/3) ... [2024-12-02 13:33:10,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486066ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:33:10, skipping insertion in model container [2024-12-02 13:33:10,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:33:10" (3/3) ... [2024-12-02 13:33:10,538 INFO L128 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-12-02 13:33:10,552 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:33:10,553 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cs_peterson.i that has 6 procedures, 130 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-12-02 13:33:10,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:33:10,617 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;@40804bd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:33:10,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-02 13:33:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 90 states have internal predecessors, (113), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 13:33:10,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 13:33:10,625 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:10,626 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:10,626 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:10,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1824218735, now seen corresponding path program 1 times [2024-12-02 13:33:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:10,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215482691] [2024-12-02 13:33:10,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:10,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:10,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:10,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215482691] [2024-12-02 13:33:10,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215482691] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:10,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:10,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:33:10,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637761080] [2024-12-02 13:33:10,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:10,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 13:33:10,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:10,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 13:33:10,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:33:10,886 INFO L87 Difference]: Start difference. First operand has 130 states, 82 states have (on average 1.3780487804878048) internal successors, (113), 90 states have internal predecessors, (113), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 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) [2024-12-02 13:33:10,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:10,921 INFO L93 Difference]: Finished difference Result 253 states and 391 transitions. [2024-12-02 13:33:10,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 13:33:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 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 [2024-12-02 13:33:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:10,927 INFO L225 Difference]: With dead ends: 253 [2024-12-02 13:33:10,927 INFO L226 Difference]: Without dead ends: 15 [2024-12-02 13:33:10,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 13:33:10,934 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:10,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:10,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-12-02 13:33:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-12-02 13:33:10,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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 13:33:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-12-02 13:33:10,980 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2024-12-02 13:33:10,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:10,980 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-12-02 13:33:10,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2024-12-02 13:33:10,981 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-12-02 13:33:10,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-02 13:33:10,981 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:10,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:10,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:33:10,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:10,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:10,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1824208869, now seen corresponding path program 1 times [2024-12-02 13:33:10,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:10,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498607657] [2024-12-02 13:33:10,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:10,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:11,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:11,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:11,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498607657] [2024-12-02 13:33:11,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498607657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:11,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:11,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:33:11,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411032222] [2024-12-02 13:33:11,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:11,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:11,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:11,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:11,197 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2024-12-02 13:33:11,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:11,252 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2024-12-02 13:33:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:11,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2024-12-02 13:33:11,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:11,253 INFO L225 Difference]: With dead ends: 32 [2024-12-02 13:33:11,254 INFO L226 Difference]: Without dead ends: 19 [2024-12-02 13:33:11,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:11,255 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:11,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 30 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-12-02 13:33:11,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-12-02 13:33:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 18 states have internal predecessors, (20), 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 13:33:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-12-02 13:33:11,259 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2024-12-02 13:33:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:11,259 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-12-02 13:33:11,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2024-12-02 13:33:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-12-02 13:33:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 13:33:11,260 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:11,260 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:11,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:33:11,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:11,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1423525089, now seen corresponding path program 1 times [2024-12-02 13:33:11,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:11,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452816011] [2024-12-02 13:33:11,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:11,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452816011] [2024-12-02 13:33:11,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452816011] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:33:11,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045649652] [2024-12-02 13:33:11,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:11,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:11,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:33:11,493 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:33:11,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:33:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:11,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:33:11,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:33:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:11,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:33:11,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045649652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:11,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:33:11,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 13:33:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224050029] [2024-12-02 13:33:11,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:11,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:33:11,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:11,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:33:11,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:33:11,829 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 13:33:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:11,909 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-12-02 13:33:11,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:33:11,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2024-12-02 13:33:11,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:11,910 INFO L225 Difference]: With dead ends: 19 [2024-12-02 13:33:11,910 INFO L226 Difference]: Without dead ends: 18 [2024-12-02 13:33:11,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:33:11,911 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:11,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:33:11,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-12-02 13:33:11,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-12-02 13:33:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 13:33:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-12-02 13:33:11,915 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2024-12-02 13:33:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:11,915 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-12-02 13:33:11,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 13:33:11,915 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-12-02 13:33:11,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 13:33:11,916 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:11,916 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:11,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:33:12,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:12,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:12,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:12,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1423522911, now seen corresponding path program 1 times [2024-12-02 13:33:12,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:12,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715644544] [2024-12-02 13:33:12,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:12,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:12,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:12,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:12,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715644544] [2024-12-02 13:33:12,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715644544] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:33:12,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899521021] [2024-12-02 13:33:12,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:12,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:12,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:33:12,269 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:33:12,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:33:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:12,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:33:12,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:33:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:12,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:33:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:33:12,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899521021] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:33:12,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:33:12,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-12-02 13:33:12,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175669710] [2024-12-02 13:33:12,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:33:12,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:33:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:12,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:33:12,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:33:12,633 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 13:33:12,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:12,687 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2024-12-02 13:33:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:33:12,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 11 [2024-12-02 13:33:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:12,689 INFO L225 Difference]: With dead ends: 39 [2024-12-02 13:33:12,689 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 13:33:12,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:33:12,689 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:12,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 13:33:12,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 13:33:12,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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 13:33:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-12-02 13:33:12,693 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2024-12-02 13:33:12,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:12,693 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-12-02 13:33:12,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 13:33:12,693 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-12-02 13:33:12,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 13:33:12,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:12,694 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-12-02 13:33:12,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 13:33:12,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:12,894 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:12,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1275585960, now seen corresponding path program 1 times [2024-12-02 13:33:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206117251] [2024-12-02 13:33:12,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:13,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 13:33:13,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:13,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206117251] [2024-12-02 13:33:13,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206117251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:13,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:13,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:33:13,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455573096] [2024-12-02 13:33:13,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:13,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:13,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:13,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:13,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:13,039 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:33:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:13,070 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-12-02 13:33:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16 [2024-12-02 13:33:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:13,071 INFO L225 Difference]: With dead ends: 23 [2024-12-02 13:33:13,072 INFO L226 Difference]: Without dead ends: 22 [2024-12-02 13:33:13,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:13,073 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:13,073 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:13,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-12-02 13:33:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-12-02 13:33:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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 13:33:13,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-12-02 13:33:13,077 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2024-12-02 13:33:13,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:13,077 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-12-02 13:33:13,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13:33:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-12-02 13:33:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 13:33:13,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:13,077 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:13,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:33:13,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:13,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:13,078 INFO L85 PathProgramCache]: Analyzing trace with hash 889438997, now seen corresponding path program 2 times [2024-12-02 13:33:13,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:13,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178009989] [2024-12-02 13:33:13,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:33:13,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:13,126 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:33:13,127 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:33:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 13:33:13,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:13,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178009989] [2024-12-02 13:33:13,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178009989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:13,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:13,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:33:13,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526266675] [2024-12-02 13:33:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:13,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:13,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:13,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:13,205 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13:33:13,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:13,264 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2024-12-02 13:33:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 19 [2024-12-02 13:33:13,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:13,265 INFO L225 Difference]: With dead ends: 42 [2024-12-02 13:33:13,265 INFO L226 Difference]: Without dead ends: 40 [2024-12-02 13:33:13,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:13,266 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:13,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:33:13,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-12-02 13:33:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-12-02 13:33:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.105263157894737) internal successors, (42), 39 states have internal predecessors, (42), 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 13:33:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2024-12-02 13:33:13,272 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 19 [2024-12-02 13:33:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:13,273 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2024-12-02 13:33:13,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13:33:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2024-12-02 13:33:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-02 13:33:13,274 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:13,274 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 13:33:13,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:33:13,274 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:13,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash -289432045, now seen corresponding path program 1 times [2024-12-02 13:33:13,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:13,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897283005] [2024-12-02 13:33:13,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:13,531 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:33:13,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:13,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897283005] [2024-12-02 13:33:13,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897283005] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:33:13,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275607077] [2024-12-02 13:33:13,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:13,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:13,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:33:13,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:33:13,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:33:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:13,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:33:13,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:33:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:33:13,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:33:13,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275607077] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:13,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:33:13,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 13:33:13,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636865359] [2024-12-02 13:33:13,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:13,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:33:13,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:13,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:33:13,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:33:13,991 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-12-02 13:33:14,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:14,087 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2024-12-02 13:33:14,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:33:14,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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 37 [2024-12-02 13:33:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:14,088 INFO L225 Difference]: With dead ends: 40 [2024-12-02 13:33:14,088 INFO L226 Difference]: Without dead ends: 39 [2024-12-02 13:33:14,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:33:14,089 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:33:14,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:33:14,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-12-02 13:33:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-12-02 13:33:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 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 13:33:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-12-02 13:33:14,094 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 37 [2024-12-02 13:33:14,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:14,094 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-12-02 13:33:14,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 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) [2024-12-02 13:33:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-12-02 13:33:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 13:33:14,096 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:33:14,096 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 13:33:14,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:33:14,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:33:14,296 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:33:14,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:33:14,297 INFO L85 PathProgramCache]: Analyzing trace with hash -382458650, now seen corresponding path program 1 times [2024-12-02 13:33:14,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:33:14,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289534714] [2024-12-02 13:33:14,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:33:14,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:33:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:33:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 13:33:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:33:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289534714] [2024-12-02 13:33:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289534714] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:33:14,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:33:14,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:33:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969004203] [2024-12-02 13:33:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:33:14,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:33:14,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:33:14,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:33:14,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:14,406 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 13:33:14,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:33:14,441 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-12-02 13:33:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:33:14,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 38 [2024-12-02 13:33:14,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:33:14,442 INFO L225 Difference]: With dead ends: 39 [2024-12-02 13:33:14,442 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:33:14,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:33:14,443 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 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 13:33:14,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:33:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:33:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:33:14,444 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 13:33:14,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:33:14,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2024-12-02 13:33:14,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:33:14,444 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:33:14,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 13:33:14,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:33:14,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:33:14,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-12-02 13:33:14,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-12-02 13:33:14,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-12-02 13:33:14,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-12-02 13:33:14,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-12-02 13:33:14,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-12-02 13:33:14,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-12-02 13:33:14,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-12-02 13:33:14,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:33:14,450 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-12-02 13:33:14,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:33:14,591 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:33:14,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:33:14 BoogieIcfgContainer [2024-12-02 13:33:14,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:33:14,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:33:14,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:33:14,605 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:33:14,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:33:10" (3/4) ... [2024-12-02 13:33:14,608 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:33:14,612 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2024-12-02 13:33:14,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2024-12-02 13:33:14,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2024-12-02 13:33:14,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 13:33:14,613 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2024-12-02 13:33:14,621 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-12-02 13:33:14,621 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 13:33:14,622 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 13:33:14,623 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 13:33:14,623 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:33:14,705 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:33:14,705 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:33:14,705 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:33:14,706 INFO L158 Benchmark]: Toolchain (without parser) took 6026.85ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 115.4MB in the beginning and 183.5MB in the end (delta: -68.1MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,706 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:33:14,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.94ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 89.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 84.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,707 INFO L158 Benchmark]: Boogie Preprocessor took 85.23ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 77.8MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,707 INFO L158 Benchmark]: RCFGBuilder took 1248.33ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 83.2MB in the end (delta: -5.3MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,708 INFO L158 Benchmark]: TraceAbstraction took 4073.36ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 82.6MB in the beginning and 191.6MB in the end (delta: -109.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,708 INFO L158 Benchmark]: Witness Printer took 100.08ms. Allocated memory is still 310.4MB. Free memory was 191.6MB in the beginning and 183.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:33:14,709 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 470.94ms. Allocated memory is still 142.6MB. Free memory was 115.2MB in the beginning and 89.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 84.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.23ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 77.8MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1248.33ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 83.2MB in the end (delta: -5.3MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4073.36ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 82.6MB in the beginning and 191.6MB in the end (delta: -109.0MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 100.08ms. Allocated memory is still 310.4MB. Free memory was 191.6MB in the beginning and 183.5MB in the end (delta: 8.1MB). 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: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: 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 6 procedures, 130 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 369 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 132 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 237 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 205 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1436 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 215/268 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 8 specifications checked. All of them hold - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) || (((1 <= i) && (i <= 2)) && (j == 0))) || (((1 <= i) && (i <= 2)) && (1 <= j))) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2024-12-02 13:33:14,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09a691f-3111-4a22-9253-a6357d863ad7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE