./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix001.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix001.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21c0308f80ae5e3a4b410ebaece3730b9f788bd0cc89fb6ef65f8dd9f7120f36 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:54:43,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:54:43,498 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:54:43,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:54:43,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:54:43,528 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:54:43,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:54:43,529 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:54:43,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:54:43,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:54:43,531 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:54:43,531 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:54:43,532 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:54:43,532 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:54:43,533 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:54:43,533 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:54:43,534 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:54:43,534 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:54:43,535 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:54:43,536 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:54:43,536 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:54:43,537 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:54:43,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:54:43,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:54:43,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:54:43,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:54:43,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:54:43,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:54:43,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:54:43,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:54:43,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:54:43,541 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:54:43,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:54:43,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:54:43,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:54:43,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:54:43,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:54:43,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:54:43,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:43,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:54:43,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:54:43,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:54:43,546 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:54:43,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:54:43,547 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:54:43,547 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:54:43,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:54:43,548 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21c0308f80ae5e3a4b410ebaece3730b9f788bd0cc89fb6ef65f8dd9f7120f36 [2023-11-12 00:54:43,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:54:43,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:54:43,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:54:43,915 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:54:43,916 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:54:43,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/mix001.opt.i [2023-11-12 00:54:47,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:54:47,438 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:54:47,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/sv-benchmarks/c/pthread-wmm/mix001.opt.i [2023-11-12 00:54:47,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/data/9a6f17881/1ae48f0931444ce192eeb1edeb337ae8/FLAG0a1305514 [2023-11-12 00:54:47,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/data/9a6f17881/1ae48f0931444ce192eeb1edeb337ae8 [2023-11-12 00:54:47,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:54:47,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:54:47,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:47,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:54:47,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:54:47,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:47" (1/1) ... [2023-11-12 00:54:47,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21778b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:47, skipping insertion in model container [2023-11-12 00:54:47,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:47" (1/1) ... [2023-11-12 00:54:47,546 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:54:48,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:48,031 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:54:48,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:48,172 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:54:48,173 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:54:48,181 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:54:48,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48 WrapperNode [2023-11-12 00:54:48,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:48,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:48,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:54:48,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:54:48,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,278 INFO L138 Inliner]: procedures = 176, calls = 61, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 159 [2023-11-12 00:54:48,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:48,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:54:48,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:54:48,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:54:48,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,345 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:54:48,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:54:48,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:54:48,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:54:48,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (1/1) ... [2023-11-12 00:54:48,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:48,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:48,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:54:48,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:54:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:54:48,437 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:54:48,437 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:54:48,438 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:54:48,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:54:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:54:48,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:54:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:54:48,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:54:48,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:54:48,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:54:48,442 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:54:48,660 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:54:48,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:54:49,123 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:54:49,410 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:54:49,411 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:54:49,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:49 BoogieIcfgContainer [2023-11-12 00:54:49,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:54:49,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:54:49,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:54:49,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:54:49,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:47" (1/3) ... [2023-11-12 00:54:49,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b85ea7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:49, skipping insertion in model container [2023-11-12 00:54:49,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:48" (2/3) ... [2023-11-12 00:54:49,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b85ea7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:49, skipping insertion in model container [2023-11-12 00:54:49,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:49" (3/3) ... [2023-11-12 00:54:49,427 INFO L112 eAbstractionObserver]: Analyzing ICFG mix001.opt.i [2023-11-12 00:54:49,434 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:54:49,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:54:49,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 00:54:49,442 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:54:49,527 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:54:49,578 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:54:49,594 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 125 transitions, 262 flow [2023-11-12 00:54:49,597 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 125 transitions, 262 flow [2023-11-12 00:54:49,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 125 transitions, 262 flow [2023-11-12 00:54:49,680 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2023-11-12 00:54:49,681 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:54:49,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 122 events. 3/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-11-12 00:54:49,695 INFO L119 LiptonReduction]: Number of co-enabled transitions 2972 [2023-11-12 00:54:55,935 INFO L134 LiptonReduction]: Checked pairs total: 9631 [2023-11-12 00:54:55,936 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-12 00:54:55,944 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 32 transitions, 76 flow [2023-11-12 00:54:56,078 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:56,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:54:56,106 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@4a9d9692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:54:56,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 00:54:56,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:56,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:54:56,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:56,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:54:56,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:54:56,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:56,128 INFO L85 PathProgramCache]: Analyzing trace with hash 553956819, now seen corresponding path program 1 times [2023-11-12 00:54:56,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:56,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998921725] [2023-11-12 00:54:56,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:56,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:56,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998921725] [2023-11-12 00:54:56,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998921725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:56,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:56,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444513273] [2023-11-12 00:54:56,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:56,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:56,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:56,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:56,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:56,490 INFO L87 Difference]: Start difference. First operand has 1678 states, 1652 states have (on average 3.5750605326876514) internal successors, (5906), 1677 states have internal predecessors, (5906), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:56,610 INFO L93 Difference]: Finished difference Result 1090 states and 3501 transitions. [2023-11-12 00:54:56,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:56,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2023-11-12 00:54:56,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:56,644 INFO L225 Difference]: With dead ends: 1090 [2023-11-12 00:54:56,644 INFO L226 Difference]: Without dead ends: 1090 [2023-11-12 00:54:56,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:56,649 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:56,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 4 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:56,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2023-11-12 00:54:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1090. [2023-11-12 00:54:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 1083 states have (on average 3.2326869806094183) internal successors, (3501), 1089 states have internal predecessors, (3501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:56,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 3501 transitions. [2023-11-12 00:54:56,819 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 3501 transitions. Word has length 5 [2023-11-12 00:54:56,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:56,819 INFO L495 AbstractCegarLoop]: Abstraction has 1090 states and 3501 transitions. [2023-11-12 00:54:56,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:56,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 3501 transitions. [2023-11-12 00:54:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:54:56,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:56,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:54:56,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:54:56,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:54:56,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:56,823 INFO L85 PathProgramCache]: Analyzing trace with hash -7209671, now seen corresponding path program 1 times [2023-11-12 00:54:56,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:56,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659386749] [2023-11-12 00:54:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:56,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:56,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659386749] [2023-11-12 00:54:56,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659386749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:56,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:56,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:54:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041570891] [2023-11-12 00:54:56,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:56,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:54:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:54:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:56,925 INFO L87 Difference]: Start difference. First operand 1090 states and 3501 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:57,029 INFO L93 Difference]: Finished difference Result 790 states and 2393 transitions. [2023-11-12 00:54:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:54:57,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2023-11-12 00:54:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:57,038 INFO L225 Difference]: With dead ends: 790 [2023-11-12 00:54:57,039 INFO L226 Difference]: Without dead ends: 790 [2023-11-12 00:54:57,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:54:57,041 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:57,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:57,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-12 00:54:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2023-11-12 00:54:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 784 states have (on average 3.052295918367347) internal successors, (2393), 789 states have internal predecessors, (2393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 2393 transitions. [2023-11-12 00:54:57,086 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 2393 transitions. Word has length 6 [2023-11-12 00:54:57,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:57,087 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 2393 transitions. [2023-11-12 00:54:57,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 2393 transitions. [2023-11-12 00:54:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:54:57,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:57,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:57,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:54:57,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:54:57,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:57,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1194126301, now seen corresponding path program 1 times [2023-11-12 00:54:57,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:57,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100872962] [2023-11-12 00:54:57,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:57,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:57,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:57,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100872962] [2023-11-12 00:54:57,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100872962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:57,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:57,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:54:57,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362422219] [2023-11-12 00:54:57,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:57,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:54:57,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:54:57,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:54:57,295 INFO L87 Difference]: Start difference. First operand 790 states and 2393 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:57,425 INFO L93 Difference]: Finished difference Result 670 states and 2066 transitions. [2023-11-12 00:54:57,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:54:57,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2023-11-12 00:54:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:57,433 INFO L225 Difference]: With dead ends: 670 [2023-11-12 00:54:57,433 INFO L226 Difference]: Without dead ends: 670 [2023-11-12 00:54:57,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:54:57,438 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:57,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 12 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:57,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2023-11-12 00:54:57,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2023-11-12 00:54:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 667 states have (on average 3.0974512743628186) internal successors, (2066), 669 states have internal predecessors, (2066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2066 transitions. [2023-11-12 00:54:57,471 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 2066 transitions. Word has length 12 [2023-11-12 00:54:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:57,471 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 2066 transitions. [2023-11-12 00:54:57,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 2066 transitions. [2023-11-12 00:54:57,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:54:57,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:57,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:57,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:54:57,478 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 00:54:57,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:57,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1694013847, now seen corresponding path program 1 times [2023-11-12 00:54:57,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:57,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825526460] [2023-11-12 00:54:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:57,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:57,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825526460] [2023-11-12 00:54:57,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825526460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:57,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:57,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:54:57,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707854904] [2023-11-12 00:54:57,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:57,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:54:57,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:57,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:54:57,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:54:57,732 INFO L87 Difference]: Start difference. First operand 670 states and 2066 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:57,851 INFO L93 Difference]: Finished difference Result 658 states and 2045 transitions. [2023-11-12 00:54:57,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:54:57,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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) Word has length 19 [2023-11-12 00:54:57,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:57,852 INFO L225 Difference]: With dead ends: 658 [2023-11-12 00:54:57,852 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:54:57,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:54:57,853 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 47 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:57,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 12 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:54:57,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:54:57,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:54:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:54:57,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2023-11-12 00:54:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:57,856 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:54:57,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:54:57,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:54:57,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-12 00:54:57,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-12 00:54:57,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-12 00:54:57,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-12 00:54:57,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-12 00:54:57,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-12 00:54:57,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-12 00:54:57,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-12 00:54:57,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-12 00:54:57,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-12 00:54:57,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-12 00:54:57,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-12 00:54:57,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-12 00:54:57,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-12 00:54:57,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-12 00:54:57,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:54:57,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:54:57,871 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:54:57,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:54:57,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:54:57 BasicIcfg [2023-11-12 00:54:57,875 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:54:57,876 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:54:57,876 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:54:57,876 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:54:57,877 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:49" (3/4) ... [2023-11-12 00:54:57,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:54:57,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 00:54:57,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 00:54:57,882 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 00:54:57,888 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-12 00:54:57,888 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-12 00:54:57,888 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:54:57,889 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:54:57,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:54:57,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:54:57,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:54:57,991 INFO L158 Benchmark]: Toolchain (without parser) took 10510.38ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 110.0MB in the beginning and 64.3MB in the end (delta: 45.7MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. [2023-11-12 00:54:57,992 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:57,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.70ms. Allocated memory is still 157.3MB. Free memory was 110.0MB in the beginning and 85.6MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:57,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.47ms. Allocated memory is still 157.3MB. Free memory was 85.6MB in the beginning and 82.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:57,993 INFO L158 Benchmark]: Boogie Preprocessor took 72.53ms. Allocated memory is still 157.3MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:57,993 INFO L158 Benchmark]: RCFGBuilder took 1062.37ms. Allocated memory is still 157.3MB. Free memory was 80.7MB in the beginning and 110.0MB in the end (delta: -29.3MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-11-12 00:54:57,994 INFO L158 Benchmark]: TraceAbstraction took 8457.24ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 109.6MB in the beginning and 69.6MB in the end (delta: 40.1MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2023-11-12 00:54:57,998 INFO L158 Benchmark]: Witness Printer took 115.17ms. Allocated memory is still 207.6MB. Free memory was 69.6MB in the beginning and 64.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:58,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 157.3MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.70ms. Allocated memory is still 157.3MB. Free memory was 110.0MB in the beginning and 85.6MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.47ms. Allocated memory is still 157.3MB. Free memory was 85.6MB in the beginning and 82.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.53ms. Allocated memory is still 157.3MB. Free memory was 82.8MB in the beginning and 81.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1062.37ms. Allocated memory is still 157.3MB. Free memory was 80.7MB in the beginning and 110.0MB in the end (delta: -29.3MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8457.24ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 109.6MB in the beginning and 69.6MB in the end (delta: 40.1MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 115.17ms. Allocated memory is still 207.6MB. Free memory was 69.6MB in the beginning and 64.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 132 PlacesBefore, 41 PlacesAfterwards, 125 TransitionsBefore, 32 TransitionsAfterwards, 2972 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 9631 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4171, independent: 3895, independent conditional: 0, independent unconditional: 3895, dependent: 276, dependent conditional: 0, dependent unconditional: 276, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2223, independent: 2130, independent conditional: 0, independent unconditional: 2130, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2223, independent: 2081, independent conditional: 0, independent unconditional: 2081, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 142, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 876, independent: 146, independent conditional: 0, independent unconditional: 146, dependent: 729, dependent conditional: 0, dependent unconditional: 729, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4171, independent: 1765, independent conditional: 0, independent unconditional: 1765, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 2223, unknown conditional: 0, unknown unconditional: 2223] , Statistics on independence cache: Total cache size (in pairs): 308, Positive cache size: 275, Positive conditional cache size: 0, Positive unconditional cache size: 275, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 793]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 157 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 16 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1678occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 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! [2023-11-12 00:54:58,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be4ccb14-cc1b-4014-a458-25bd81b4564a/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE