./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX --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 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:20:08,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:20:08,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:20:08,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:20:08,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:20:08,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:20:08,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:20:08,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:20:08,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:20:08,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:20:08,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:20:08,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:20:08,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:20:08,616 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:20:08,616 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:20:08,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:20:08,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:20:08,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:20:08,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:20:08,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:20:08,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:20:08,619 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:20:08,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:20:08,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:20:08,621 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:20:08,621 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:20:08,622 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:20:08,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:20:08,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:20:08,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:20:08,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:20:08,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:20:08,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:20:08,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:20:08,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:20:08,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:20:08,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:20:08,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:20:08,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:20:08,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:20:08,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:20:08,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:20:08,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:20:08,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:20:08,648 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_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9071d56f4666aca734ab742196d3aa15fce92ad6b7c276706d2cff43d2d6147a [2024-11-08 19:20:08,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:20:09,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:20:09,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:20:09,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:20:09,078 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:20:09,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-08 19:20:11,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:20:11,416 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:20:11,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/sv-benchmarks/c/pthread-wmm/safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-08 19:20:11,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/data/f4158a963/db1ca9acc13f4fb1ac1b39ed2ca76c60/FLAGabd91cc9d [2024-11-08 19:20:11,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/data/f4158a963/db1ca9acc13f4fb1ac1b39ed2ca76c60 [2024-11-08 19:20:11,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:20:11,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:20:11,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:20:11,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:20:11,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:20:11,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:20:11" (1/1) ... [2024-11-08 19:20:11,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27adfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:11, skipping insertion in model container [2024-11-08 19:20:11,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:20:11" (1/1) ... [2024-11-08 19:20:11,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:20:12,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:20:12,056 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:20:12,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:20:12,179 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:20:12,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12 WrapperNode [2024-11-08 19:20:12,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:20:12,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:20:12,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:20:12,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:20:12,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,238 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-08 19:20:12,240 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:20:12,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:20:12,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:20:12,241 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:20:12,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,263 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,291 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]. [2024-11-08 19:20:12,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,306 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:20:12,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:20:12,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:20:12,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:20:12,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (1/1) ... [2024-11-08 19:20:12,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:20:12,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:12,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:20:12,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:20:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 19:20:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:20:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-08 19:20:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-08 19:20:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-08 19:20:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-08 19:20:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-08 19:20:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-08 19:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:20:12,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 19:20:12,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:20:12,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:20:12,408 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 19:20:12,634 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:20:12,636 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:20:12,853 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:20:12,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:20:13,005 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:20:13,006 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:20:13,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:13 BoogieIcfgContainer [2024-11-08 19:20:13,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:20:13,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:20:13,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:20:13,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:20:13,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:20:11" (1/3) ... [2024-11-08 19:20:13,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f162b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:20:13, skipping insertion in model container [2024-11-08 19:20:13,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:20:12" (2/3) ... [2024-11-08 19:20:13,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f162b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:20:13, skipping insertion in model container [2024-11-08 19:20:13,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:13" (3/3) ... [2024-11-08 19:20:13,022 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-08 19:20:13,045 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:20:13,046 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 19:20:13,046 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:20:13,105 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 19:20:13,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2024-11-08 19:20:13,193 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-08 19:20:13,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:20:13,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-08 19:20:13,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2024-11-08 19:20:13,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 37 transitions, 83 flow [2024-11-08 19:20:13,209 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:20:13,220 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;@1e280803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:20:13,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 19:20:13,233 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:20:13,238 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-08 19:20:13,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:20:13,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:13,239 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:13,242 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 19:20:13,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:13,248 INFO L85 PathProgramCache]: Analyzing trace with hash -225420469, now seen corresponding path program 1 times [2024-11-08 19:20:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372018825] [2024-11-08 19:20:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:13,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:20:13,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:13,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372018825] [2024-11-08 19:20:13,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372018825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:13,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:13,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 19:20:13,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841652078] [2024-11-08 19:20:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:13,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:20:13,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:13,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:20:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:20:13,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-11-08 19:20:13,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:13,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:13,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-11-08 19:20:13,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:14,070 INFO L124 PetriNetUnfolderBase]: 842/1295 cut-off events. [2024-11-08 19:20:14,070 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-08 19:20:14,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2621 conditions, 1295 events. 842/1295 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 7252 event pairs, 420 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 2610. Up to 1271 conditions per place. [2024-11-08 19:20:14,087 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 27 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-11-08 19:20:14,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 171 flow [2024-11-08 19:20:14,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:20:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 19:20:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-11-08 19:20:14,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7833333333333333 [2024-11-08 19:20:14,103 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 3 states and 94 transitions. [2024-11-08 19:20:14,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 171 flow [2024-11-08 19:20:14,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 19:20:14,110 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 116 flow [2024-11-08 19:20:14,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2024-11-08 19:20:14,116 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2024-11-08 19:20:14,117 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2024-11-08 19:20:14,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:14,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:14,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:14,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:20:14,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 19:20:14,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:14,119 INFO L85 PathProgramCache]: Analyzing trace with hash 224013687, now seen corresponding path program 1 times [2024-11-08 19:20:14,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:14,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250976900] [2024-11-08 19:20:14,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:14,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:20:14,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:14,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250976900] [2024-11-08 19:20:14,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250976900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:14,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:14,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:20:14,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014150270] [2024-11-08 19:20:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:14,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:14,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:14,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:14,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-11-08 19:20:14,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:14,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:14,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-11-08 19:20:14,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:14,529 INFO L124 PetriNetUnfolderBase]: 476/753 cut-off events. [2024-11-08 19:20:14,530 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-08 19:20:14,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 753 events. 476/753 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 3805 event pairs, 212 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1858. Up to 728 conditions per place. [2024-11-08 19:20:14,540 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 24 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-08 19:20:14,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 178 flow [2024-11-08 19:20:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:20:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:20:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-11-08 19:20:14,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-08 19:20:14,543 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 107 transitions. [2024-11-08 19:20:14,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 178 flow [2024-11-08 19:20:14,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:20:14,546 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2024-11-08 19:20:14,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2024-11-08 19:20:14,548 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2024-11-08 19:20:14,548 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2024-11-08 19:20:14,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:14,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:14,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:14,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:20:14,549 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 19:20:14,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:14,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1000627832, now seen corresponding path program 1 times [2024-11-08 19:20:14,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:14,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576232310] [2024-11-08 19:20:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:14,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:14,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:20:14,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:14,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576232310] [2024-11-08 19:20:14,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576232310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:14,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:14,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:20:14,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543669554] [2024-11-08 19:20:14,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:14,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:20:14,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:14,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:20:14,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:20:14,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-11-08 19:20:14,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:14,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:14,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-11-08 19:20:14,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:14,866 INFO L124 PetriNetUnfolderBase]: 302/499 cut-off events. [2024-11-08 19:20:14,866 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-08 19:20:14,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 499 events. 302/499 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2288 event pairs, 40 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 1190. Up to 409 conditions per place. [2024-11-08 19:20:14,871 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 29 selfloop transitions, 7 changer transitions 3/55 dead transitions. [2024-11-08 19:20:14,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 234 flow [2024-11-08 19:20:14,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:20:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:20:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-08 19:20:14,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7375 [2024-11-08 19:20:14,873 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 4 states and 118 transitions. [2024-11-08 19:20:14,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 234 flow [2024-11-08 19:20:14,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 55 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 19:20:14,876 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 129 flow [2024-11-08 19:20:14,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2024-11-08 19:20:14,877 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2024-11-08 19:20:14,877 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 129 flow [2024-11-08 19:20:14,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:14,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:20:14,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:14,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:20:14,878 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 19:20:14,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1560444073, now seen corresponding path program 1 times [2024-11-08 19:20:14,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098269920] [2024-11-08 19:20:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:20:15,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:15,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098269920] [2024-11-08 19:20:15,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098269920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:20:15,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:20:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:20:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324308009] [2024-11-08 19:20:15,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:20:15,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:20:15,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:15,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:20:15,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:20:15,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 40 [2024-11-08 19:20:15,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:15,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:20:15,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 40 [2024-11-08 19:20:15,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:20:15,222 INFO L124 PetriNetUnfolderBase]: 130/247 cut-off events. [2024-11-08 19:20:15,222 INFO L125 PetriNetUnfolderBase]: For 264/264 co-relation queries the response was YES. [2024-11-08 19:20:15,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 247 events. 130/247 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1083 event pairs, 0 based on Foata normal form. 48/286 useless extension candidates. Maximal degree in co-relation 720. Up to 156 conditions per place. [2024-11-08 19:20:15,224 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2024-11-08 19:20:15,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 213 flow [2024-11-08 19:20:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:20:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:20:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-08 19:20:15,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.655 [2024-11-08 19:20:15,227 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 129 flow. Second operand 5 states and 131 transitions. [2024-11-08 19:20:15,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 213 flow [2024-11-08 19:20:15,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 189 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-08 19:20:15,230 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-08 19:20:15,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-08 19:20:15,231 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2024-11-08 19:20:15,231 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-08 19:20:15,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:20:15,234 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-08 19:20:15,235 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-08 19:20:15,235 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-08 19:20:15,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-08 19:20:15,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-08 19:20:15,236 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-08 19:20:15,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-08 19:20:15,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-08 19:20:15,238 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-08 19:20:15,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-08 19:20:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-08 19:20:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-08 19:20:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-08 19:20:15,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-08 19:20:15,241 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-08 19:20:15,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:20:15,241 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 19:20:15,251 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 19:20:15,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:20:15,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:20:15 BasicIcfg [2024-11-08 19:20:15,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:20:15,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:20:15,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:20:15,262 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:20:15,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:20:13" (3/4) ... [2024-11-08 19:20:15,265 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:20:15,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-08 19:20:15,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-08 19:20:15,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-08 19:20:15,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-08 19:20:15,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 19:20:15,277 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 19:20:15,277 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:20:15,388 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 19:20:15,389 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 19:20:15,389 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:20:15,389 INFO L158 Benchmark]: Toolchain (without parser) took 3927.31ms. Allocated memory was 123.7MB in the beginning and 224.4MB in the end (delta: 100.7MB). Free memory was 59.5MB in the beginning and 161.0MB in the end (delta: -101.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,390 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 96.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:20:15,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.78ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 59.3MB in the beginning and 133.4MB in the end (delta: -74.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.83ms. Allocated memory is still 182.5MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,391 INFO L158 Benchmark]: Boogie Preprocessor took 77.36ms. Allocated memory is still 182.5MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,392 INFO L158 Benchmark]: RCFGBuilder took 687.53ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 132.2MB in the end (delta: -3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,392 INFO L158 Benchmark]: TraceAbstraction took 2249.70ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 132.2MB in the beginning and 166.2MB in the end (delta: -34.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,392 INFO L158 Benchmark]: Witness Printer took 127.34ms. Allocated memory is still 224.4MB. Free memory was 165.2MB in the beginning and 161.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:20:15,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 123.7MB. Free memory was 96.7MB in the beginning and 96.5MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.78ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 59.3MB in the beginning and 133.4MB in the end (delta: -74.1MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.83ms. Allocated memory is still 182.5MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.36ms. Allocated memory is still 182.5MB. Free memory was 131.3MB in the beginning and 129.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 687.53ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 132.2MB in the end (delta: -3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2249.70ms. Allocated memory was 182.5MB in the beginning and 224.4MB in the end (delta: 41.9MB). Free memory was 132.2MB in the beginning and 166.2MB in the end (delta: -34.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 127.34ms. Allocated memory is still 224.4MB. Free memory was 165.2MB in the beginning and 161.0MB 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: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 735]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 15 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: 2.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 80 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 19:20:15,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fdf3312-f9a7-4d32-bd83-42f9aa8367e3/bin/uautomizer-verify-jihMAELWvX/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