./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/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_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/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_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/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 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:24:08,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:24:09,007 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 16:24:09,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:24:09,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:24:09,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:24:09,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:24:09,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:24:09,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:24:09,071 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:24:09,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:24:09,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:24:09,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:24:09,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:24:09,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:24:09,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:24:09,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:24:09,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:24:09,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:24:09,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:24:09,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:24:09,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:24:09,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:24:09,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:24:09,086 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:24:09,087 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:24:09,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:24:09,087 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:24:09,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:24:09,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:24:09,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:24:09,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:24:09,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:24:09,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:24:09,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:24:09,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:24:09,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:24:09,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:24:09,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:24:09,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:24:09,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:24:09,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:24:09,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:24:09,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:24:09,095 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_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f [2024-11-08 16:24:09,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:24:09,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:24:09,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:24:09,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:24:09,472 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:24:09,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i Unable to find full path for "g++" [2024-11-08 16:24:11,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:24:12,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:24:12,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2024-11-08 16:24:12,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/data/c1aa49021/135b3b7895da40de8af4c7752b2d9912/FLAGcd971aa72 [2024-11-08 16:24:12,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/data/c1aa49021/135b3b7895da40de8af4c7752b2d9912 [2024-11-08 16:24:12,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:24:12,338 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:24:12,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:24:12,340 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:24:12,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:24:12,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:24:12" (1/1) ... [2024-11-08 16:24:12,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b514081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:12, skipping insertion in model container [2024-11-08 16:24:12,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:24:12" (1/1) ... [2024-11-08 16:24:12,408 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:24:12,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:24:12,927 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:24:13,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:24:13,083 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:24:13,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13 WrapperNode [2024-11-08 16:24:13,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:24:13,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:24:13,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:24:13,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:24:13,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,148 INFO L138 Inliner]: procedures = 175, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2024-11-08 16:24:13,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:24:13,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:24:13,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:24:13,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:24:13,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,169 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,198 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5]. [2024-11-08 16:24:13,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:24:13,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:24:13,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:24:13,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:24:13,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (1/1) ... [2024-11-08 16:24:13,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:24:13,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:24:13,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:24:13,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:24:13,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-08 16:24:13,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:24:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-08 16:24:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-08 16:24:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-08 16:24:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-08 16:24:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-08 16:24:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-08 16:24:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:24:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:24:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-08 16:24:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:24:13,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:24:13,347 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 16:24:13,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:24:13,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:24:14,338 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:24:14,339 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:24:14,934 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:24:14,934 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:24:14,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:24:14 BoogieIcfgContainer [2024-11-08 16:24:14,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:24:14,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:24:14,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:24:14,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:24:14,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:24:12" (1/3) ... [2024-11-08 16:24:14,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed32551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:24:14, skipping insertion in model container [2024-11-08 16:24:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:24:13" (2/3) ... [2024-11-08 16:24:14,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed32551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:24:14, skipping insertion in model container [2024-11-08 16:24:14,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:24:14" (3/3) ... [2024-11-08 16:24:14,950 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.i [2024-11-08 16:24:14,976 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:24:14,977 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 16:24:14,977 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:24:15,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:24:15,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2024-11-08 16:24:15,208 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-08 16:24:15,209 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:24:15,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 80 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-08 16:24:15,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2024-11-08 16:24:15,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-11-08 16:24:15,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:24:15,246 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;@282f4b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:24:15,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-08 16:24:15,264 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:24:15,265 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-08 16:24:15,265 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:24:15,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:24:15,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:24:15,267 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 16:24:15,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:24:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1152951670, now seen corresponding path program 1 times [2024-11-08 16:24:15,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:24:15,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335131943] [2024-11-08 16:24:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:24:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:24:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:24:15,865 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 16:24:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:24:15,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335131943] [2024-11-08 16:24:15,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335131943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:24:15,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:24:15,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 16:24:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958259402] [2024-11-08 16:24:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:24:15,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:24:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:24:15,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:24:15,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:24:15,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-08 16:24:15,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 16:24:15,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:24:15,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-08 16:24:15,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:24:17,079 INFO L124 PetriNetUnfolderBase]: 2075/3077 cut-off events. [2024-11-08 16:24:17,079 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-08 16:24:17,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6192 conditions, 3077 events. 2075/3077 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 18148 event pairs, 773 based on Foata normal form. 0/2331 useless extension candidates. Maximal degree in co-relation 6181. Up to 2975 conditions per place. [2024-11-08 16:24:17,115 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 37 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-08 16:24:17,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 197 flow [2024-11-08 16:24:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:24:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:24:17,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-08 16:24:17,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2024-11-08 16:24:17,138 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 83 transitions. [2024-11-08 16:24:17,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 197 flow [2024-11-08 16:24:17,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 16:24:17,146 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2024-11-08 16:24:17,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-08 16:24:17,153 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2024-11-08 16:24:17,155 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2024-11-08 16:24:17,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 16:24:17,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:24:17,156 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:24:17,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:24:17,157 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 16:24:17,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:24:17,158 INFO L85 PathProgramCache]: Analyzing trace with hash -395826711, now seen corresponding path program 1 times [2024-11-08 16:24:17,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:24:17,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737036667] [2024-11-08 16:24:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:24:17,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:24:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:24:17,389 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 16:24:17,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:24:17,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737036667] [2024-11-08 16:24:17,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737036667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:24:17,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:24:17,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:24:17,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726869966] [2024-11-08 16:24:17,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:24:17,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:24:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:24:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:24:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:24:17,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-08 16:24:17,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:24:17,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:24:17,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-08 16:24:17,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:24:18,089 INFO L124 PetriNetUnfolderBase]: 1343/2013 cut-off events. [2024-11-08 16:24:18,089 INFO L125 PetriNetUnfolderBase]: For 191/196 co-relation queries the response was YES. [2024-11-08 16:24:18,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4796 conditions, 2013 events. 1343/2013 cut-off events. For 191/196 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 11001 event pairs, 427 based on Foata normal form. 2/1709 useless extension candidates. Maximal degree in co-relation 4785. Up to 1910 conditions per place. [2024-11-08 16:24:18,106 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 34 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2024-11-08 16:24:18,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 47 transitions, 204 flow [2024-11-08 16:24:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:24:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:24:18,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-08 16:24:18,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5855263157894737 [2024-11-08 16:24:18,111 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 89 transitions. [2024-11-08 16:24:18,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 47 transitions, 204 flow [2024-11-08 16:24:18,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 47 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:24:18,120 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2024-11-08 16:24:18,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-08 16:24:18,121 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2024-11-08 16:24:18,122 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2024-11-08 16:24:18,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:24:18,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:24:18,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:24:18,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:24:18,123 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 16:24:18,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:24:18,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1601165854, now seen corresponding path program 1 times [2024-11-08 16:24:18,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:24:18,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443104612] [2024-11-08 16:24:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:24:18,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:24:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:24:18,305 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 16:24:18,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:24:18,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443104612] [2024-11-08 16:24:18,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443104612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:24:18,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:24:18,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:24:18,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827188621] [2024-11-08 16:24:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:24:18,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:24:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:24:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:24:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:24:18,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-08 16:24:18,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:24:18,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:24:18,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-08 16:24:18,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:24:18,881 INFO L124 PetriNetUnfolderBase]: 911/1393 cut-off events. [2024-11-08 16:24:18,881 INFO L125 PetriNetUnfolderBase]: For 319/324 co-relation queries the response was YES. [2024-11-08 16:24:18,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3253 conditions, 1393 events. 911/1393 cut-off events. For 319/324 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 6907 event pairs, 101 based on Foata normal form. 2/1313 useless extension candidates. Maximal degree in co-relation 3241. Up to 893 conditions per place. [2024-11-08 16:24:18,893 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 44 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2024-11-08 16:24:18,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 63 transitions, 280 flow [2024-11-08 16:24:18,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:24:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 16:24:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-11-08 16:24:18,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6907894736842105 [2024-11-08 16:24:18,899 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 4 states and 105 transitions. [2024-11-08 16:24:18,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 63 transitions, 280 flow [2024-11-08 16:24:18,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 63 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:24:18,902 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 125 flow [2024-11-08 16:24:18,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2024-11-08 16:24:18,904 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2024-11-08 16:24:18,906 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 125 flow [2024-11-08 16:24:18,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 16:24:18,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:24:18,907 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] [2024-11-08 16:24:18,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:24:18,908 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 16:24:18,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:24:18,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1431899578, now seen corresponding path program 1 times [2024-11-08 16:24:18,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:24:18,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158905602] [2024-11-08 16:24:18,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:24:18,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:24:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:24:19,181 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 16:24:19,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:24:19,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158905602] [2024-11-08 16:24:19,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158905602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:24:19,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:24:19,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:24:19,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489064142] [2024-11-08 16:24:19,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:24:19,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:24:19,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:24:19,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:24:19,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:24:19,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-11-08 16:24:19,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 16:24:19,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:24:19,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-11-08 16:24:19,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:24:19,677 INFO L124 PetriNetUnfolderBase]: 643/1005 cut-off events. [2024-11-08 16:24:19,678 INFO L125 PetriNetUnfolderBase]: For 763/773 co-relation queries the response was YES. [2024-11-08 16:24:19,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2712 conditions, 1005 events. 643/1005 cut-off events. For 763/773 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4910 event pairs, 41 based on Foata normal form. 76/1071 useless extension candidates. Maximal degree in co-relation 2699. Up to 504 conditions per place. [2024-11-08 16:24:19,682 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2024-11-08 16:24:19,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 57 transitions, 259 flow [2024-11-08 16:24:19,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:24:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 16:24:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2024-11-08 16:24:19,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5842105263157895 [2024-11-08 16:24:19,685 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 125 flow. Second operand 5 states and 111 transitions. [2024-11-08 16:24:19,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 57 transitions, 259 flow [2024-11-08 16:24:19,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 57 transitions, 235 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-08 16:24:19,688 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-08 16:24:19,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-11-08 16:24:19,689 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-11-08 16:24:19,690 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-08 16:24:19,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 16:24:19,693 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-08 16:24:19,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-08 16:24:19,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-08 16:24:19,694 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-08 16:24:19,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-08 16:24:19,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-08 16:24:19,695 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-08 16:24:19,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-08 16:24:19,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-08 16:24:19,696 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-08 16:24:19,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-08 16:24:19,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-08 16:24:19,697 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-08 16:24:19,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-08 16:24:19,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-08 16:24:19,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:24:19,699 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 16:24:19,705 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 16:24:19,706 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:24:19,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:24:19 BasicIcfg [2024-11-08 16:24:19,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:24:19,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:24:19,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:24:19,714 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:24:19,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:24:14" (3/4) ... [2024-11-08 16:24:19,717 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 16:24:19,720 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-08 16:24:19,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-08 16:24:19,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-08 16:24:19,728 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2024-11-08 16:24:19,729 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 16:24:19,729 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 16:24:19,729 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 16:24:19,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 16:24:19,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 16:24:19,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:24:19,871 INFO L158 Benchmark]: Toolchain (without parser) took 7529.04ms. Allocated memory was 134.2MB in the beginning and 268.4MB in the end (delta: 134.2MB). Free memory was 96.1MB in the beginning and 191.8MB in the end (delta: -95.7MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,871 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:24:19,871 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.43ms. Allocated memory is still 134.2MB. Free memory was 96.1MB in the beginning and 69.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.77ms. Allocated memory is still 134.2MB. Free memory was 69.6MB in the beginning and 67.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,872 INFO L158 Benchmark]: Boogie Preprocessor took 86.81ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 63.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,873 INFO L158 Benchmark]: RCFGBuilder took 1699.63ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 63.0MB in the beginning and 143.0MB in the end (delta: -80.0MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,873 INFO L158 Benchmark]: TraceAbstraction took 4773.68ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 143.0MB in the beginning and 196.0MB in the end (delta: -53.0MB). Peak memory consumption was 159.4MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,874 INFO L158 Benchmark]: Witness Printer took 152.78ms. Allocated memory is still 268.4MB. Free memory was 196.0MB in the beginning and 191.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:24:19,879 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 134.2MB. Free memory was 81.4MB in the beginning and 81.2MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.43ms. Allocated memory is still 134.2MB. Free memory was 96.1MB in the beginning and 69.6MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.77ms. Allocated memory is still 134.2MB. Free memory was 69.6MB in the beginning and 67.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.81ms. Allocated memory is still 134.2MB. Free memory was 67.2MB in the beginning and 63.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1699.63ms. Allocated memory was 134.2MB in the beginning and 182.5MB in the end (delta: 48.2MB). Free memory was 63.0MB in the beginning and 143.0MB in the end (delta: -80.0MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4773.68ms. Allocated memory was 182.5MB in the beginning and 268.4MB in the end (delta: 86.0MB). Free memory was 143.0MB in the beginning and 196.0MB in the end (delta: -53.0MB). Peak memory consumption was 159.4MB. Max. memory is 16.1GB. * Witness Printer took 152.78ms. Allocated memory is still 268.4MB. Free memory was 196.0MB in the beginning and 191.8MB 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: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 817]: 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, 68 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: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258 IncrementalHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 258 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=125occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 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 16:24:19,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a42a74-8e2d-4c3a-85de-4cf7df65f46b/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE