./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya --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 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:28:16,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:28:16,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 05:28:16,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:28:16,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:28:16,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:28:16,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:28:16,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:28:16,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:28:16,957 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:28:16,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:28:16,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:28:16,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:28:16,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:28:16,961 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:28:16,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:28:16,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:28:16,962 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:28:16,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:28:16,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:28:16,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:28:16,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:28:16,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:28:16,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:28:16,968 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:28:16,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:28:16,969 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:28:16,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:28:16,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:28:16,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:28:16,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:28:16,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:28:16,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:28:16,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:28:16,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:28:16,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:28:16,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:28:16,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:28:16,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:28:16,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:28:16,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:28:16,974 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:28:16,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:28:16,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:28:16,974 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2023-11-29 05:28:17,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:28:17,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:28:17,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:28:17,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:28:17,199 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:28:17,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-29 05:28:19,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:28:20,221 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:28:20,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2023-11-29 05:28:20,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/data/b93294aa5/426e0c1ceb9e40cabb4125971136a2ec/FLAG9c572553f [2023-11-29 05:28:20,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/data/b93294aa5/426e0c1ceb9e40cabb4125971136a2ec [2023-11-29 05:28:20,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:28:20,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:28:20,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:28:20,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:28:20,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:28:20,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661c3838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20, skipping insertion in model container [2023-11-29 05:28:20,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:28:20,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:28:20,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:28:20,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:28:20,869 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:28:20,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20 WrapperNode [2023-11-29 05:28:20,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:28:20,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:28:20,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:28:20,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:28:20,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,919 INFO L138 Inliner]: procedures = 266, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2023-11-29 05:28:20,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:28:20,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:28:20,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:28:20,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:28:20,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,949 INFO L175 MemorySlicer]: Split 19 memory accesses to 2 slices as follows [18, 1]. 95 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [16, 0]. The 3 writes are split as follows [2, 1]. [2023-11-29 05:28:20,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:28:20,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:28:20,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:28:20,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:28:20,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (1/1) ... [2023-11-29 05:28:20,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:28:20,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:28:20,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:28:21,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:28:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:28:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:28:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 05:28:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:28:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:28:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 05:28:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:28:21,033 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 05:28:21,033 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 05:28:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:28:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:28:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:28:21,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:28:21,036 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 05:28:21,173 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:28:21,176 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:28:21,341 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:28:21,518 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:28:21,519 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:28:21,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:28:21 BoogieIcfgContainer [2023-11-29 05:28:21,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:28:21,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:28:21,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:28:21,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:28:21,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:28:20" (1/3) ... [2023-11-29 05:28:21,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a763934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:28:21, skipping insertion in model container [2023-11-29 05:28:21,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:28:20" (2/3) ... [2023-11-29 05:28:21,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a763934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:28:21, skipping insertion in model container [2023-11-29 05:28:21,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:28:21" (3/3) ... [2023-11-29 05:28:21,529 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2023-11-29 05:28:21,537 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 05:28:21,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:28:21,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 05:28:21,549 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 05:28:21,578 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 05:28:21,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 27 transitions, 58 flow [2023-11-29 05:28:21,638 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2023-11-29 05:28:21,638 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:21,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 1/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 38 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2023-11-29 05:28:21,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 27 transitions, 58 flow [2023-11-29 05:28:21,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 11 places, 10 transitions, 20 flow [2023-11-29 05:28:21,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:28:21,661 INFO L357 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, mHoare=true, 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;@4d219684, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:28:21,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-29 05:28:21,665 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 05:28:21,666 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-29 05:28:21,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:21,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:28:21,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-29 05:28:21,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-29 05:28:21,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:21,673 INFO L85 PathProgramCache]: Analyzing trace with hash 6676743, now seen corresponding path program 1 times [2023-11-29 05:28:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:21,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506037245] [2023-11-29 05:28:21,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:28:21,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:21,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506037245] [2023-11-29 05:28:21,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506037245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:21,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:21,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:21,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576125218] [2023-11-29 05:28:21,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:21,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:28:21,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:21,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:28:21,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:21,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2023-11-29 05:28:21,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 10 transitions, 20 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:21,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:28:21,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2023-11-29 05:28:21,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:28:22,010 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-29 05:28:22,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:22,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16 conditions, 9 events. 0/9 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 8 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2023-11-29 05:28:22,011 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 4 selfloop transitions, 1 changer transitions 0/9 dead transitions. [2023-11-29 05:28:22,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 28 flow [2023-11-29 05:28:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:28:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:28:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2023-11-29 05:28:22,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2962962962962963 [2023-11-29 05:28:22,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 24 transitions. [2023-11-29 05:28:22,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 24 transitions. [2023-11-29 05:28:22,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:28:22,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 24 transitions. [2023-11-29 05:28:22,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:22,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-11-29 05:28:22,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-11-29 05:28:22,036 INFO L175 Difference]: Start difference. First operand has 11 places, 10 transitions, 20 flow. Second operand 3 states and 24 transitions. [2023-11-29 05:28:22,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 28 flow [2023-11-29 05:28:22,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 28 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 05:28:22,039 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 20 flow [2023-11-29 05:28:22,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2023-11-29 05:28:22,045 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, 1 predicate places. [2023-11-29 05:28:22,045 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 20 flow [2023-11-29 05:28:22,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:22,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:28:22,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-29 05:28:22,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:28:22,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-29 05:28:22,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:22,047 INFO L85 PathProgramCache]: Analyzing trace with hash 6676770, now seen corresponding path program 1 times [2023-11-29 05:28:22,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:22,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032825964] [2023-11-29 05:28:22,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:22,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:28:22,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:22,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032825964] [2023-11-29 05:28:22,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032825964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:22,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:22,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460481904] [2023-11-29 05:28:22,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:22,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:28:22,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:22,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:28:22,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:28:22,140 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2023-11-29 05:28:22,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 20 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-29 05:28:22,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:28:22,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2023-11-29 05:28:22,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:28:22,172 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-29 05:28:22,173 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:22,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 5 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-29 05:28:22,173 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 3 selfloop transitions, 2 changer transitions 0/8 dead transitions. [2023-11-29 05:28:22,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 8 transitions, 28 flow [2023-11-29 05:28:22,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:28:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 05:28:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2023-11-29 05:28:22,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2777777777777778 [2023-11-29 05:28:22,176 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 30 transitions. [2023-11-29 05:28:22,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 30 transitions. [2023-11-29 05:28:22,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:28:22,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 30 transitions. [2023-11-29 05:28:22,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2023-11-29 05:28:22,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2023-11-29 05:28:22,178 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) [2023-11-29 05:28:22,179 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 20 flow. Second operand 4 states and 30 transitions. [2023-11-29 05:28:22,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 8 transitions, 28 flow [2023-11-29 05:28:22,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 8 transitions, 27 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 05:28:22,181 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 21 flow [2023-11-29 05:28:22,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=21, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2023-11-29 05:28:22,182 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, 2 predicate places. [2023-11-29 05:28:22,182 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 21 flow [2023-11-29 05:28:22,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-29 05:28:22,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:28:22,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:28:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:28:22,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-29 05:28:22,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash 206980066, now seen corresponding path program 1 times [2023-11-29 05:28:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:22,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005971912] [2023-11-29 05:28:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:28:22,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:22,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005971912] [2023-11-29 05:28:22,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005971912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:22,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:22,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:28:22,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316617599] [2023-11-29 05:28:22,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:22,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:28:22,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:22,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:28:22,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:28:22,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2023-11-29 05:28:22,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 8 transitions, 21 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2023-11-29 05:28:22,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:28:22,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2023-11-29 05:28:22,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:28:22,303 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2023-11-29 05:28:22,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:22,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 7 events. 0/7 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-29 05:28:22,303 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 1 selfloop transitions, 2 changer transitions 2/7 dead transitions. [2023-11-29 05:28:22,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 7 transitions, 27 flow [2023-11-29 05:28:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:28:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 05:28:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2023-11-29 05:28:22,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25925925925925924 [2023-11-29 05:28:22,305 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 35 transitions. [2023-11-29 05:28:22,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 35 transitions. [2023-11-29 05:28:22,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:28:22,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 35 transitions. [2023-11-29 05:28:22,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2023-11-29 05:28:22,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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) [2023-11-29 05:28:22,308 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 27.0) internal successors, (162), 6 states have internal predecessors, (162), 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) [2023-11-29 05:28:22,308 INFO L175 Difference]: Start difference. First operand has 13 places, 8 transitions, 21 flow. Second operand 5 states and 35 transitions. [2023-11-29 05:28:22,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 7 transitions, 27 flow [2023-11-29 05:28:22,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 24 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:28:22,309 INFO L231 Difference]: Finished difference. Result has 14 places, 5 transitions, 15 flow [2023-11-29 05:28:22,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=15, PETRI_PLACES=14, PETRI_TRANSITIONS=5} [2023-11-29 05:28:22,310 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, 3 predicate places. [2023-11-29 05:28:22,310 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 5 transitions, 15 flow [2023-11-29 05:28:22,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2023-11-29 05:28:22,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 05:28:22,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 05:28:22,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:28:22,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-29 05:28:22,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:28:22,312 INFO L85 PathProgramCache]: Analyzing trace with hash 206979231, now seen corresponding path program 1 times [2023-11-29 05:28:22,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:28:22,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496861847] [2023-11-29 05:28:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:28:22,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:28:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:28:22,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:28:22,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:28:22,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496861847] [2023-11-29 05:28:22,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496861847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:28:22,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:28:22,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:28:22,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728491039] [2023-11-29 05:28:22,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:28:22,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:28:22,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:28:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:28:22,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:28:22,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2023-11-29 05:28:22,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 5 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:22,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 05:28:22,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2023-11-29 05:28:22,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 05:28:22,381 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-11-29 05:28:22,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 05:28:22,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 4 events. 0/4 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-11-29 05:28:22,381 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2023-11-29 05:28:22,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 4 transitions, 19 flow [2023-11-29 05:28:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:28:22,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 05:28:22,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-11-29 05:28:22,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2716049382716049 [2023-11-29 05:28:22,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 22 transitions. [2023-11-29 05:28:22,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 22 transitions. [2023-11-29 05:28:22,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 05:28:22,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 22 transitions. [2023-11-29 05:28:22,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:22,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-11-29 05:28:22,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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) [2023-11-29 05:28:22,384 INFO L175 Difference]: Start difference. First operand has 14 places, 5 transitions, 15 flow. Second operand 3 states and 22 transitions. [2023-11-29 05:28:22,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 4 transitions, 19 flow [2023-11-29 05:28:22,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 9 places, 4 transitions, 16 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 05:28:22,385 INFO L231 Difference]: Finished difference. Result has 9 places, 0 transitions, 0 flow [2023-11-29 05:28:22,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=10, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=9, PETRI_TRANSITIONS=0} [2023-11-29 05:28:22,386 INFO L281 CegarLoopForPetriNet]: 11 programPoint places, -2 predicate places. [2023-11-29 05:28:22,386 INFO L495 AbstractCegarLoop]: Abstraction has has 9 places, 0 transitions, 0 flow [2023-11-29 05:28:22,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:28:22,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-11-29 05:28:22,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-11-29 05:28:22,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-11-29 05:28:22,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-11-29 05:28:22,390 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-29 05:28:22,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:28:22,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-29 05:28:22,394 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 05:28:22,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:28:22,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:28:22 BasicIcfg [2023-11-29 05:28:22,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:28:22,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:28:22,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:28:22,401 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:28:22,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:28:21" (3/4) ... [2023-11-29 05:28:22,403 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 05:28:22,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-29 05:28:22,412 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-11-29 05:28:22,412 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-29 05:28:22,413 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 05:28:22,413 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 05:28:22,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 05:28:22,501 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 05:28:22,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:28:22,502 INFO L158 Benchmark]: Toolchain (without parser) took 2244.26ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 126.1MB in the beginning and 130.1MB in the end (delta: -4.0MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,502 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:28:22,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.97ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 97.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.95ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 95.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,503 INFO L158 Benchmark]: Boogie Preprocessor took 45.20ms. Allocated memory is still 167.8MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,504 INFO L158 Benchmark]: RCFGBuilder took 553.74ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 93.3MB in the beginning and 197.2MB in the end (delta: -104.0MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,504 INFO L158 Benchmark]: TraceAbstraction took 877.64ms. Allocated memory is still 241.2MB. Free memory was 196.2MB in the beginning and 134.3MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,505 INFO L158 Benchmark]: Witness Printer took 100.35ms. Allocated memory is still 241.2MB. Free memory was 134.3MB in the beginning and 130.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:28:22,507 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.97ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 97.8MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.95ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 95.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.20ms. Allocated memory is still 167.8MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.74ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 93.3MB in the beginning and 197.2MB in the end (delta: -104.0MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 877.64ms. Allocated memory is still 241.2MB. Free memory was 196.2MB in the beginning and 134.3MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 100.35ms. Allocated memory is still 241.2MB. Free memory was 134.3MB in the beginning and 130.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1016]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1013]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1016]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1013]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 33 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 05:28:22,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203258b9-c167-47f4-bcfc-61bad79c3d4a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE