./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/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_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/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_ec35cbef-0ebb-4c7c-bb51-a49868c89387/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 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:11:34,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:11:34,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 11:11:34,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:11:34,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:11:34,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:11:34,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:11:34,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:11:34,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:11:34,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:11:34,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:11:34,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:11:34,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:11:34,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:11:34,554 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:11:34,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:11:34,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:11:34,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:11:34,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:11:34,556 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:34,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:11:34,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:34,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:11:34,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:11:34,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:11:34,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:11:34,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:11:34,558 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_ec35cbef-0ebb-4c7c-bb51-a49868c89387/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 -> 2354c4d30c0335eb0a6c6e03cf8d087a440768412264986840e048ded8afea74 [2024-12-02 11:11:34,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:11:34,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:11:34,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:11:34,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:11:34,832 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:11:34,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-12-02 11:11:38,192 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/data/04f5f4d99/7d3bfb5b092c494da8df9f1d7b8ea559/FLAG33c9483e0 [2024-12-02 11:11:38,476 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:11:38,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-12-02 11:11:38,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/data/04f5f4d99/7d3bfb5b092c494da8df9f1d7b8ea559/FLAG33c9483e0 [2024-12-02 11:11:38,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/data/04f5f4d99/7d3bfb5b092c494da8df9f1d7b8ea559 [2024-12-02 11:11:38,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:11:38,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:11:38,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:38,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:11:38,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:11:38,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2ab41c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38, skipping insertion in model container [2024-12-02 11:11:38,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:11:38,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:38,816 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:11:38,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:38,907 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:11:38,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38 WrapperNode [2024-12-02 11:11:38,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:38,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:38,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:11:38,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:11:38,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,964 INFO L138 Inliner]: procedures = 32, calls = 49, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 517 [2024-12-02 11:11:38,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:38,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:11:38,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:11:38,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:11:38,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:38,979 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,001 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:11:39,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,002 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,016 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,029 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:11:39,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:11:39,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:11:39,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:11:39,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (1/1) ... [2024-12-02 11:11:39,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:39,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:39,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:11:39,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:11:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure read_manual_selection_history [2024-12-02 11:11:39,101 INFO L138 BoogieDeclarations]: Found implementation of procedure read_manual_selection_history [2024-12-02 11:11:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:11:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure read_side2_failed_history [2024-12-02 11:11:39,101 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side2_failed_history [2024-12-02 11:11:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-12-02 11:11:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure flip_the_side [2024-12-02 11:11:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure flip_the_side [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:11:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure read_side1_failed_history [2024-12-02 11:11:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure read_side1_failed_history [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:11:39,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:11:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure read_active_side_history [2024-12-02 11:11:39,103 INFO L138 BoogieDeclarations]: Found implementation of procedure read_active_side_history [2024-12-02 11:11:39,218 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:11:39,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:11:39,870 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-12-02 11:11:39,870 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:11:39,887 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:11:39,887 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 11:11:39,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:39 BoogieIcfgContainer [2024-12-02 11:11:39,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:11:39,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:11:39,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:11:39,897 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:11:39,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:11:38" (1/3) ... [2024-12-02 11:11:39,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab4e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:39, skipping insertion in model container [2024-12-02 11:11:39,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:38" (2/3) ... [2024-12-02 11:11:39,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ab4e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:39, skipping insertion in model container [2024-12-02 11:11:39,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:39" (3/3) ... [2024-12-02 11:11:39,900 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2024-12-02 11:11:39,919 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:11:39,922 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c that has 8 procedures, 186 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-12-02 11:11:39,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:11:40,008 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;@14446e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:11:40,008 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:11:40,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 147 states have internal predecessors, (224), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 11:11:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 11:11:40,027 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,028 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,028 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:40,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash -480228656, now seen corresponding path program 1 times [2024-12-02 11:11:40,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043090839] [2024-12-02 11:11:40,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 11:11:40,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:40,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043090839] [2024-12-02 11:11:40,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043090839] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:40,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883976635] [2024-12-02 11:11:40,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:40,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:40,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:40,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:11:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:40,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:11:40,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 11:11:40,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:40,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883976635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:40,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:40,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:11:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309166039] [2024-12-02 11:11:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:40,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:11:40,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:40,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:11:40,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:40,615 INFO L87 Difference]: Start difference. First operand has 186 states, 145 states have (on average 1.5448275862068965) internal successors, (224), 147 states have internal predecessors, (224), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:40,653 INFO L93 Difference]: Finished difference Result 355 states and 571 transitions. [2024-12-02 11:11:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:11:40,655 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-12-02 11:11:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:40,663 INFO L225 Difference]: With dead ends: 355 [2024-12-02 11:11:40,663 INFO L226 Difference]: Without dead ends: 180 [2024-12-02 11:11:40,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 73 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 11:11:40,671 INFO L435 NwaCegarLoop]: 282 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, 282 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 11:11:40,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-12-02 11:11:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-12-02 11:11:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 140 states have (on average 1.5357142857142858) internal successors, (215), 141 states have internal predecessors, (215), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-12-02 11:11:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 277 transitions. [2024-12-02 11:11:40,730 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 277 transitions. Word has length 72 [2024-12-02 11:11:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,730 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 277 transitions. [2024-12-02 11:11:40,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:40,731 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 277 transitions. [2024-12-02 11:11:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 11:11:40,735 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:40,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:11:40,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:11:40,936 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:40,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1237404048, now seen corresponding path program 1 times [2024-12-02 11:11:40,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366247722] [2024-12-02 11:11:40,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:11:41,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:41,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366247722] [2024-12-02 11:11:41,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366247722] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:41,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178846952] [2024-12-02 11:11:41,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:41,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:41,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:41,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:41,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:11:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:41,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:11:41,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:41,628 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:41,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178846952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:41,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:41,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 11:11:41,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434468437] [2024-12-02 11:11:41,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:41,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:41,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:41,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:41,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:11:41,631 INFO L87 Difference]: Start difference. First operand 180 states and 277 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:11:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:41,914 INFO L93 Difference]: Finished difference Result 397 states and 601 transitions. [2024-12-02 11:11:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:11:41,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-12-02 11:11:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:41,918 INFO L225 Difference]: With dead ends: 397 [2024-12-02 11:11:41,918 INFO L226 Difference]: Without dead ends: 234 [2024-12-02 11:11:41,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:11:41,920 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 407 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:41,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 717 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:11:41,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-12-02 11:11:41,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2024-12-02 11:11:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 184 states have internal predecessors, (277), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 11:11:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 347 transitions. [2024-12-02 11:11:41,948 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 347 transitions. Word has length 72 [2024-12-02 11:11:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:41,948 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 347 transitions. [2024-12-02 11:11:41,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:11:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 347 transitions. [2024-12-02 11:11:41,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 11:11:41,951 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:41,951 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:41,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 11:11:42,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:42,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:42,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:42,153 INFO L85 PathProgramCache]: Analyzing trace with hash 718149987, now seen corresponding path program 1 times [2024-12-02 11:11:42,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:42,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093120744] [2024-12-02 11:11:42,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:42,340 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:11:42,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:42,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093120744] [2024-12-02 11:11:42,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093120744] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:42,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611180347] [2024-12-02 11:11:42,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:42,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:42,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:42,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:11:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:42,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:11:42,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:42,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:11:42,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:42,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611180347] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:42,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:42,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 11:11:42,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221401571] [2024-12-02 11:11:42,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:42,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:42,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:42,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:42,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:11:42,612 INFO L87 Difference]: Start difference. First operand 230 states and 347 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:11:42,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:42,821 INFO L93 Difference]: Finished difference Result 398 states and 601 transitions. [2024-12-02 11:11:42,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:11:42,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 73 [2024-12-02 11:11:42,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:42,825 INFO L225 Difference]: With dead ends: 398 [2024-12-02 11:11:42,825 INFO L226 Difference]: Without dead ends: 235 [2024-12-02 11:11:42,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:11:42,827 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 407 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:42,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 717 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-12-02 11:11:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2024-12-02 11:11:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 185 states have (on average 1.508108108108108) internal successors, (279), 186 states have internal predecessors, (279), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 11:11:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-12-02 11:11:42,857 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 73 [2024-12-02 11:11:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:42,858 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-12-02 11:11:42,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:11:42,858 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-12-02 11:11:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 11:11:42,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:42,861 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:42,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 11:11:43,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:43,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1700783189, now seen corresponding path program 1 times [2024-12-02 11:11:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794228993] [2024-12-02 11:11:43,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:43,249 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:11:43,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:43,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794228993] [2024-12-02 11:11:43,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794228993] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:43,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123447700] [2024-12-02 11:11:43,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:43,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:43,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:43,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:43,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:11:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:43,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:11:43,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:43,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 11:11:43,541 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:43,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123447700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:43,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:43,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-02 11:11:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392779256] [2024-12-02 11:11:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:43,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:11:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:43,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:11:43,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:43,544 INFO L87 Difference]: Start difference. First operand 232 states and 349 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:43,592 INFO L93 Difference]: Finished difference Result 232 states and 349 transitions. [2024-12-02 11:11:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:11:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-12-02 11:11:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:43,596 INFO L225 Difference]: With dead ends: 232 [2024-12-02 11:11:43,596 INFO L226 Difference]: Without dead ends: 231 [2024-12-02 11:11:43,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:43,598 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 108 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 649 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 11:11:43,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 649 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-12-02 11:11:43,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-12-02 11:11:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 185 states have (on average 1.5027027027027027) internal successors, (278), 185 states have internal predecessors, (278), 35 states have call successors, (35), 10 states have call predecessors, (35), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 11:11:43,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 348 transitions. [2024-12-02 11:11:43,623 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 348 transitions. Word has length 75 [2024-12-02 11:11:43,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:43,624 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 348 transitions. [2024-12-02 11:11:43,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 348 transitions. [2024-12-02 11:11:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 11:11:43,626 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:43,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:43,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:11:43,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:43,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:43,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:43,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1184671832, now seen corresponding path program 1 times [2024-12-02 11:11:43,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:43,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487577838] [2024-12-02 11:11:43,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:43,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:44,039 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:11:44,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:44,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487577838] [2024-12-02 11:11:44,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487577838] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:44,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205940819] [2024-12-02 11:11:44,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:44,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:44,042 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:44,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:11:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:44,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:11:44,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 11:11:44,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:44,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205940819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:44,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:44,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-02 11:11:44,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970288708] [2024-12-02 11:11:44,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:44,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:11:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:44,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:11:44,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:44,335 INFO L87 Difference]: Start difference. First operand 231 states and 348 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:44,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:44,395 INFO L93 Difference]: Finished difference Result 312 states and 480 transitions. [2024-12-02 11:11:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:11:44,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 76 [2024-12-02 11:11:44,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:44,399 INFO L225 Difference]: With dead ends: 312 [2024-12-02 11:11:44,399 INFO L226 Difference]: Without dead ends: 311 [2024-12-02 11:11:44,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:44,401 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 101 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:44,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 811 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:44,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-12-02 11:11:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2024-12-02 11:11:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.5) internal successors, (363), 242 states have internal predecessors, (363), 58 states have call successors, (58), 10 states have call predecessors, (58), 10 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 11:11:44,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 479 transitions. [2024-12-02 11:11:44,428 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 479 transitions. Word has length 76 [2024-12-02 11:11:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:44,428 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 479 transitions. [2024-12-02 11:11:44,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 11:11:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 479 transitions. [2024-12-02 11:11:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:11:44,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:44,432 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:44,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:11:44,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:44,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:11:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash -2015138377, now seen corresponding path program 1 times [2024-12-02 11:11:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:44,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547267286] [2024-12-02 11:11:44,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:44,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-12-02 11:11:44,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:44,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547267286] [2024-12-02 11:11:44,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547267286] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:44,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374750486] [2024-12-02 11:11:44,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:44,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:44,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:44,942 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:44,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:11:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:45,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:11:45,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 11:11:45,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:11:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 11:11:45,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374750486] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:11:45,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:11:45,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-12-02 11:11:45,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020923551] [2024-12-02 11:11:45,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:11:45,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:11:45,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:45,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:11:45,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:11:45,662 INFO L87 Difference]: Start difference. First operand 311 states and 479 transitions. Second operand has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-12-02 11:11:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:46,014 INFO L93 Difference]: Finished difference Result 724 states and 1124 transitions. [2024-12-02 11:11:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:11:46,015 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) Word has length 139 [2024-12-02 11:11:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:46,015 INFO L225 Difference]: With dead ends: 724 [2024-12-02 11:11:46,016 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 11:11:46,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:11:46,019 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 967 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:46,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 1953 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:11:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 11:11:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 11:11:46,020 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 11:11:46,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 11:11:46,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2024-12-02 11:11:46,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:46,021 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:11:46,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 7 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 6 states have call predecessors, (37), 7 states have call successors, (37) [2024-12-02 11:11:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:11:46,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 11:11:46,024 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 11:11:46,025 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 11:11:46,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:11:46,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:46,231 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 11:11:46,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 11:11:46,961 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:11:46,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:11:46 BoogieIcfgContainer [2024-12-02 11:11:46,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:11:46,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:11:46,980 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:11:46,980 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:11:46,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:39" (3/4) ... [2024-12-02 11:11:46,984 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:11:46,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_manual_selection_history [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure flip_the_side [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side2_failed_history [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_side1_failed_history [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 11:11:46,991 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_active_side_history [2024-12-02 11:11:47,002 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-12-02 11:11:47,003 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 11:11:47,004 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 11:11:47,005 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 11:11:47,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:11:47,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:11:47,125 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:11:47,126 INFO L158 Benchmark]: Toolchain (without parser) took 8614.87ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 118.7MB in the beginning and 244.5MB in the end (delta: -125.9MB). Peak memory consumption was 120.5MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,127 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:11:47,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.02ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 100.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.01ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.2MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:11:47,127 INFO L158 Benchmark]: Boogie Preprocessor took 72.13ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 92.9MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,128 INFO L158 Benchmark]: RCFGBuilder took 849.79ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 104.2MB in the end (delta: -11.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,128 INFO L158 Benchmark]: TraceAbstraction took 7088.67ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 103.6MB in the beginning and 256.8MB in the end (delta: -153.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,128 INFO L158 Benchmark]: Witness Printer took 145.43ms. Allocated memory is still 394.3MB. Free memory was 256.8MB in the beginning and 244.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:11:47,130 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 395.02ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 100.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.01ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.2MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.13ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 92.9MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 849.79ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 104.2MB in the end (delta: -11.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7088.67ms. Allocated memory was 142.6MB in the beginning and 394.3MB in the end (delta: 251.7MB). Free memory was 103.6MB in the beginning and 256.8MB in the end (delta: -153.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. * Witness Printer took 145.43ms. Allocated memory is still 394.3MB. Free memory was 256.8MB in the beginning and 244.5MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 186 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2092 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1990 mSDsluCounter, 5129 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3551 mSDsCounter, 163 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 345 IncrementalHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 163 mSolverCounterUnsat, 1578 mSDtfsCounter, 345 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 675 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1140 ConstructedInterpolants, 0 QuantifiedInterpolants, 1854 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2960 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 251/341 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((0 <= i2) && (i2 <= 2147483646)) && (((short) nomsg + 1) <= 0)) RESULT: Ultimate proved your program to be correct! [2024-12-02 11:11:47,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec35cbef-0ebb-4c7c-bb51-a49868c89387/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