./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd --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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:40:59,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:40:59,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:40:59,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:40:59,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:40:59,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:40:59,485 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:40:59,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:40:59,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:40:59,486 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:40:59,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:40:59,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:40:59,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:40:59,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:40:59,487 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:40:59,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:40:59,489 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:40:59,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:40:59,489 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:40:59,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:40:59,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:40:59,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:40:59,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:40:59,490 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:40:59,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:40:59,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:40:59,491 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-11-13 14:40:59,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:40:59,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:40:59,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:40:59,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:40:59,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:40:59,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i Unable to find full path for "g++" [2024-11-13 14:41:01,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:41:02,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:41:02,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-11-13 14:41:02,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/data/be3620046/2167ef718e4443659326857f8c1af8db/FLAGb0af8082c [2024-11-13 14:41:02,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/data/be3620046/2167ef718e4443659326857f8c1af8db [2024-11-13 14:41:02,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:41:02,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:41:02,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:41:02,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:41:02,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:41:02,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:02,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b662617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02, skipping insertion in model container [2024-11-13 14:41:02,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:02,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:41:02,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:41:02,883 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:41:02,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:41:02,972 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:41:02,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02 WrapperNode [2024-11-13 14:41:02,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:41:02,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:41:02,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:41:02,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:41:02,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:02,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,016 INFO L138 Inliner]: procedures = 166, calls = 64, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 126 [2024-11-13 14:41:03,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:41:03,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:41:03,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:41:03,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:41:03,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,046 INFO L175 MemorySlicer]: Split 26 memory accesses to 4 slices as follows [2, 8, 8, 8]. 31 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [2, 8, 8, 8]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-13 14:41:03,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:41:03,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:41:03,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:41:03,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:41:03,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (1/1) ... [2024-11-13 14:41:03,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:41:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:41:03,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:41:03,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:41:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-13 14:41:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-13 14:41:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 14:41:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-13 14:41:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:41:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 14:41:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 14:41:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 14:41:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:41:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:41:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:41:03,148 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:41:03,320 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:41:03,324 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:41:03,818 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:41:03,818 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:41:04,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:41:04,205 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:41:04,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04 BoogieIcfgContainer [2024-11-13 14:41:04,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:41:04,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:41:04,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:41:04,214 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:41:04,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:41:02" (1/3) ... [2024-11-13 14:41:04,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778d7ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:04, skipping insertion in model container [2024-11-13 14:41:04,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:02" (2/3) ... [2024-11-13 14:41:04,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778d7ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:04, skipping insertion in model container [2024-11-13 14:41:04,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04" (3/3) ... [2024-11-13 14:41:04,217 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-11-13 14:41:04,235 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:41:04,236 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_27-multiple-protecting2_true.i that has 3 procedures, 77 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-13 14:41:04,237 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:41:04,317 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 14:41:04,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 76 transitions, 166 flow [2024-11-13 14:41:04,433 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2024-11-13 14:41:04,437 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 14:41:04,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 74 events. 0/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 139 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-13 14:41:04,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 76 transitions, 166 flow [2024-11-13 14:41:04,445 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 153 flow [2024-11-13 14:41:04,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:41:04,476 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;@22c1a584, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:41:04,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 14:41:04,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:41:04,491 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-13 14:41:04,492 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:41:04,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:04,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:04,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:04,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:04,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1074000920, now seen corresponding path program 1 times [2024-11-13 14:41:04,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:04,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611316701] [2024-11-13 14:41:04,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:04,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:04,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:04,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611316701] [2024-11-13 14:41:04,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611316701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:04,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:05,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:41:05,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506331527] [2024-11-13 14:41:05,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:05,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:05,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2024-11-13 14:41:05,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-13 14:41:05,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:05,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2024-11-13 14:41:05,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:07,473 INFO L124 PetriNetUnfolderBase]: 6965/13413 cut-off events. [2024-11-13 14:41:07,473 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-13 14:41:07,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24417 conditions, 13413 events. 6965/13413 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 109870 event pairs, 2238 based on Foata normal form. 218/13260 useless extension candidates. Maximal degree in co-relation 24291. Up to 5449 conditions per place. [2024-11-13 14:41:07,570 INFO L140 encePairwiseOnDemand]: 67/76 looper letters, 105 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2024-11-13 14:41:07,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 138 transitions, 518 flow [2024-11-13 14:41:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:41:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 226 transitions. [2024-11-13 14:41:07,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.743421052631579 [2024-11-13 14:41:07,591 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 153 flow. Second operand 4 states and 226 transitions. [2024-11-13 14:41:07,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 138 transitions, 518 flow [2024-11-13 14:41:07,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 138 transitions, 509 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 14:41:07,606 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 186 flow [2024-11-13 14:41:07,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-13 14:41:07,612 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2024-11-13 14:41:07,612 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 186 flow [2024-11-13 14:41:07,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 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) [2024-11-13 14:41:07,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:07,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:07,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:41:07,613 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:07,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:07,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1348213192, now seen corresponding path program 1 times [2024-11-13 14:41:07,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:07,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140272704] [2024-11-13 14:41:07,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:07,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:07,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140272704] [2024-11-13 14:41:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140272704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:07,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:07,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:41:07,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700939676] [2024-11-13 14:41:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:07,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:41:07,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:07,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:41:07,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:41:07,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2024-11-13 14:41:07,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-11-13 14:41:07,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:07,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2024-11-13 14:41:07,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:10,219 INFO L124 PetriNetUnfolderBase]: 8807/17156 cut-off events. [2024-11-13 14:41:10,220 INFO L125 PetriNetUnfolderBase]: For 3116/3116 co-relation queries the response was YES. [2024-11-13 14:41:10,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33795 conditions, 17156 events. 8807/17156 cut-off events. For 3116/3116 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 147155 event pairs, 2309 based on Foata normal form. 330/17099 useless extension candidates. Maximal degree in co-relation 30142. Up to 7471 conditions per place. [2024-11-13 14:41:10,320 INFO L140 encePairwiseOnDemand]: 69/76 looper letters, 116 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2024-11-13 14:41:10,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 145 transitions, 632 flow [2024-11-13 14:41:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:41:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:41:10,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 223 transitions. [2024-11-13 14:41:10,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7335526315789473 [2024-11-13 14:41:10,322 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 186 flow. Second operand 4 states and 223 transitions. [2024-11-13 14:41:10,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 145 transitions, 632 flow [2024-11-13 14:41:10,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 145 transitions, 626 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:41:10,327 INFO L231 Difference]: Finished difference. Result has 81 places, 74 transitions, 206 flow [2024-11-13 14:41:10,328 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=81, PETRI_TRANSITIONS=74} [2024-11-13 14:41:10,328 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2024-11-13 14:41:10,329 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 74 transitions, 206 flow [2024-11-13 14:41:10,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2024-11-13 14:41:10,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:10,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:10,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:41:10,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:10,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1482518524, now seen corresponding path program 1 times [2024-11-13 14:41:10,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:10,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758158919] [2024-11-13 14:41:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:10,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:10,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:10,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758158919] [2024-11-13 14:41:10,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758158919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:10,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:10,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:41:10,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762478166] [2024-11-13 14:41:10,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:10,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:10,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:10,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:41:10,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-11-13 14:41:10,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 74 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-13 14:41:10,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:10,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-11-13 14:41:10,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:12,482 INFO L124 PetriNetUnfolderBase]: 7460/14051 cut-off events. [2024-11-13 14:41:12,483 INFO L125 PetriNetUnfolderBase]: For 4143/4143 co-relation queries the response was YES. [2024-11-13 14:41:12,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29275 conditions, 14051 events. 7460/14051 cut-off events. For 4143/4143 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 113629 event pairs, 1978 based on Foata normal form. 494/14455 useless extension candidates. Maximal degree in co-relation 25418. Up to 4567 conditions per place. [2024-11-13 14:41:12,564 INFO L140 encePairwiseOnDemand]: 67/76 looper letters, 160 selfloop transitions, 8 changer transitions 5/195 dead transitions. [2024-11-13 14:41:12,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 195 transitions, 877 flow [2024-11-13 14:41:12,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:41:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:41:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 326 transitions. [2024-11-13 14:41:12,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7149122807017544 [2024-11-13 14:41:12,570 INFO L175 Difference]: Start difference. First operand has 81 places, 74 transitions, 206 flow. Second operand 6 states and 326 transitions. [2024-11-13 14:41:12,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 195 transitions, 877 flow [2024-11-13 14:41:12,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 195 transitions, 860 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-13 14:41:12,582 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 205 flow [2024-11-13 14:41:12,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2024-11-13 14:41:12,583 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-13 14:41:12,583 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 205 flow [2024-11-13 14:41:12,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-13 14:41:12,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:12,584 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:12,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:41:12,588 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:12,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:12,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1286565423, now seen corresponding path program 1 times [2024-11-13 14:41:12,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:12,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662664748] [2024-11-13 14:41:12,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:12,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:12,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:12,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662664748] [2024-11-13 14:41:12,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662664748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:12,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:12,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:41:12,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195233984] [2024-11-13 14:41:12,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:12,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:12,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:12,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:12,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:41:12,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-11-13 14:41:12,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 205 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-13 14:41:12,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:12,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-11-13 14:41:12,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:14,115 INFO L124 PetriNetUnfolderBase]: 7003/13320 cut-off events. [2024-11-13 14:41:14,115 INFO L125 PetriNetUnfolderBase]: For 3923/3923 co-relation queries the response was YES. [2024-11-13 14:41:14,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28254 conditions, 13320 events. 7003/13320 cut-off events. For 3923/3923 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 107374 event pairs, 1978 based on Foata normal form. 274/13504 useless extension candidates. Maximal degree in co-relation 24436. Up to 5155 conditions per place. [2024-11-13 14:41:14,166 INFO L140 encePairwiseOnDemand]: 67/76 looper letters, 115 selfloop transitions, 8 changer transitions 21/165 dead transitions. [2024-11-13 14:41:14,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 165 transitions, 738 flow [2024-11-13 14:41:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:41:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:41:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 292 transitions. [2024-11-13 14:41:14,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2024-11-13 14:41:14,169 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 205 flow. Second operand 6 states and 292 transitions. [2024-11-13 14:41:14,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 165 transitions, 738 flow [2024-11-13 14:41:14,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 165 transitions, 717 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-13 14:41:14,179 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 180 flow [2024-11-13 14:41:14,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2024-11-13 14:41:14,180 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2024-11-13 14:41:14,180 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 180 flow [2024-11-13 14:41:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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) [2024-11-13 14:41:14,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:14,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:14,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:41:14,181 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:14,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1887418940, now seen corresponding path program 1 times [2024-11-13 14:41:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:14,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674264188] [2024-11-13 14:41:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:14,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:14,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:14,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674264188] [2024-11-13 14:41:14,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674264188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:14,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:14,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:41:14,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163940007] [2024-11-13 14:41:14,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:14,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:14,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:14,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:14,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:41:14,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-11-13 14:41:14,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 65 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2024-11-13 14:41:14,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:14,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-11-13 14:41:14,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:15,320 INFO L124 PetriNetUnfolderBase]: 4043/7774 cut-off events. [2024-11-13 14:41:15,321 INFO L125 PetriNetUnfolderBase]: For 2134/2134 co-relation queries the response was YES. [2024-11-13 14:41:15,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16171 conditions, 7774 events. 4043/7774 cut-off events. For 2134/2134 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 58956 event pairs, 1183 based on Foata normal form. 354/8111 useless extension candidates. Maximal degree in co-relation 13910. Up to 2232 conditions per place. [2024-11-13 14:41:15,358 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 134 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2024-11-13 14:41:15,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 157 transitions, 725 flow [2024-11-13 14:41:15,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:41:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:41:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 285 transitions. [2024-11-13 14:41:15,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-13 14:41:15,363 INFO L175 Difference]: Start difference. First operand has 81 places, 65 transitions, 180 flow. Second operand 6 states and 285 transitions. [2024-11-13 14:41:15,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 157 transitions, 725 flow [2024-11-13 14:41:15,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 157 transitions, 685 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-13 14:41:15,369 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 164 flow [2024-11-13 14:41:15,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2024-11-13 14:41:15,370 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -6 predicate places. [2024-11-13 14:41:15,370 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 164 flow [2024-11-13 14:41:15,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2024-11-13 14:41:15,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:41:15,371 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:41:15,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:41:15,371 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 14:41:15,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:41:15,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1619554436, now seen corresponding path program 1 times [2024-11-13 14:41:15,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:41:15,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337697579] [2024-11-13 14:41:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:41:15,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:41:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:41:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:41:15,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:41:15,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337697579] [2024-11-13 14:41:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337697579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:41:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:41:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:41:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121639894] [2024-11-13 14:41:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:41:15,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:41:15,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:41:15,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:41:15,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:41:15,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-11-13 14:41:15,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2024-11-13 14:41:15,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:41:15,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-11-13 14:41:15,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:41:16,316 INFO L124 PetriNetUnfolderBase]: 3573/7030 cut-off events. [2024-11-13 14:41:16,316 INFO L125 PetriNetUnfolderBase]: For 1734/1734 co-relation queries the response was YES. [2024-11-13 14:41:16,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14432 conditions, 7030 events. 3573/7030 cut-off events. For 1734/1734 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 53475 event pairs, 1183 based on Foata normal form. 274/7287 useless extension candidates. Maximal degree in co-relation 12356. Up to 2232 conditions per place. [2024-11-13 14:41:16,327 INFO L140 encePairwiseOnDemand]: 71/76 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2024-11-13 14:41:16,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 156 transitions, 689 flow [2024-11-13 14:41:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:41:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:41:16,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2024-11-13 14:41:16,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-11-13 14:41:16,329 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 164 flow. Second operand 6 states and 282 transitions. [2024-11-13 14:41:16,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 156 transitions, 689 flow [2024-11-13 14:41:16,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 156 transitions, 682 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:41:16,335 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2024-11-13 14:41:16,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2024-11-13 14:41:16,336 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -6 predicate places. [2024-11-13 14:41:16,336 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2024-11-13 14:41:16,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2024-11-13 14:41:16,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-13 14:41:16,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-13 14:41:16,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-13 14:41:16,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-13 14:41:16,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-13 14:41:16,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-13 14:41:16,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-13 14:41:16,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-13 14:41:16,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:41:16,341 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 14:41:16,347 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:41:16,347 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:41:16,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:41:16 BasicIcfg [2024-11-13 14:41:16,353 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:41:16,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:41:16,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:41:16,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:41:16,355 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04" (3/4) ... [2024-11-13 14:41:16,357 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:41:16,360 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-11-13 14:41:16,360 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-13 14:41:16,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2024-11-13 14:41:16,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 14:41:16,364 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 14:41:16,365 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:41:16,440 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:41:16,441 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:41:16,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:41:16,442 INFO L158 Benchmark]: Toolchain (without parser) took 14028.96ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 91.0MB in the beginning and 260.0MB in the end (delta: -169.1MB). Peak memory consumption was 456.4MB. Max. memory is 16.1GB. [2024-11-13 14:41:16,442 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:41:16,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.71ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.1MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:41:16,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 68.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:41:16,443 INFO L158 Benchmark]: Boogie Preprocessor took 46.00ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 66.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:41:16,443 INFO L158 Benchmark]: RCFGBuilder took 1142.48ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 61.5MB in the end (delta: 4.6MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-11-13 14:41:16,443 INFO L158 Benchmark]: TraceAbstraction took 12145.12ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 60.8MB in the beginning and 264.2MB in the end (delta: -203.4MB). Peak memory consumption was 610.3MB. Max. memory is 16.1GB. [2024-11-13 14:41:16,443 INFO L158 Benchmark]: Witness Printer took 86.77ms. Allocated memory is still 746.6MB. Free memory was 264.2MB in the beginning and 260.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:41:16,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.71ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.1MB in the end (delta: 20.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 68.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.00ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 66.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1142.48ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 61.5MB in the end (delta: 4.6MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12145.12ms. Allocated memory was 117.4MB in the beginning and 746.6MB in the end (delta: 629.1MB). Free memory was 60.8MB in the beginning and 264.2MB in the end (delta: -203.4MB). Peak memory consumption was 610.3MB. Max. memory is 16.1GB. * Witness Printer took 86.77ms. Allocated memory is still 746.6MB. Free memory was 264.2MB in the beginning and 260.0MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: 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 5 procedures, 123 locations, 18 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: 12.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 782 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 746 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1944 IncrementalHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 9 mSDtfsCounter, 1944 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=206occurred in iteration=2, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 14:41:16,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19dcebc0-5ecb-4659-8a65-1547844072c2/bin/uautomizer-verify-qhAvR1uOyd/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