./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91 --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 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:15,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:16,005 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-24 23:56:16,011 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:16,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:16,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:16,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:16,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:16,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:16,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:16,041 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:16,042 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:16,042 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:16,055 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:56:16,055 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:16,056 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:16,056 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:56:16,057 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:56:16,057 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:16,058 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:56:16,058 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:56:16,059 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:56:16,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:16,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:16,061 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:56:16,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:16,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:56:16,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:16,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:16,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:16,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:16,063 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:56:16,064 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:56:16,064 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:56:16,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:16,065 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:16,065 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:16,065 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:16,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:16,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:16,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:16,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:16,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:16,067 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:56:16,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:56:16,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:16,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:16,068 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:16,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:16,068 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_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2023-11-24 23:56:16,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:16,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:16,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:16,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:16,354 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:16,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-24 23:56:19,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:19,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:19,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2023-11-24 23:56:19,874 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/data/6bbba28fd/c3bfe546c8d24bb781ea04e7132d35b7/FLAGc106f6110 [2023-11-24 23:56:19,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/data/6bbba28fd/c3bfe546c8d24bb781ea04e7132d35b7 [2023-11-24 23:56:19,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:19,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:19,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:19,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:19,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:19,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:19,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f710122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19, skipping insertion in model container [2023-11-24 23:56:19,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:19,984 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:20,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:20,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:20,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:20,631 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:20,631 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:20,639 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:20,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20 WrapperNode [2023-11-24 23:56:20,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:20,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:20,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:20,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:20,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,705 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 178 [2023-11-24 23:56:20,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:20,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:20,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:20,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:20,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,729 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:20,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:20,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:20,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:20,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (1/1) ... [2023-11-24 23:56:20,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:20,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:20,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:20,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:56:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 23:56:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:56:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:56:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-24 23:56:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-24 23:56:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-24 23:56:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-24 23:56:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:56:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 23:56:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:20,902 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:56:21,079 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:21,081 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:21,554 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:21,865 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:21,865 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:56:21,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:21 BoogieIcfgContainer [2023-11-24 23:56:21,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:21,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:21,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:21,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:21,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:19" (1/3) ... [2023-11-24 23:56:21,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ec0c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:21, skipping insertion in model container [2023-11-24 23:56:21,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:20" (2/3) ... [2023-11-24 23:56:21,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ec0c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:21, skipping insertion in model container [2023-11-24 23:56:21,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:21" (3/3) ... [2023-11-24 23:56:21,882 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2023-11-24 23:56:21,893 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:56:21,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:21,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:56:21,906 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:56:21,969 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 23:56:22,010 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 31 transitions, 70 flow [2023-11-24 23:56:22,130 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 764 states, 756 states have (on average 2.6626984126984126) internal successors, (2013), 763 states have internal predecessors, (2013), 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) [2023-11-24 23:56:22,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:22,159 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;@6d210744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:22,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-24 23:56:22,165 INFO L276 IsEmpty]: Start isEmpty. Operand has 764 states, 756 states have (on average 2.6626984126984126) internal successors, (2013), 763 states have internal predecessors, (2013), 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) [2023-11-24 23:56:22,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:56:22,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:22,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:22,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:56:22,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:22,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1813531356, now seen corresponding path program 1 times [2023-11-24 23:56:22,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:22,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420811238] [2023-11-24 23:56:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:22,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420811238] [2023-11-24 23:56:22,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420811238] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:22,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:22,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:22,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294972662] [2023-11-24 23:56:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:22,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:22,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:22,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:22,615 INFO L87 Difference]: Start difference. First operand has 764 states, 756 states have (on average 2.6626984126984126) internal successors, (2013), 763 states have internal predecessors, (2013), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 23:56:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:22,809 INFO L93 Difference]: Finished difference Result 622 states and 1623 transitions. [2023-11-24 23:56:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-24 23:56:22,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:22,836 INFO L225 Difference]: With dead ends: 622 [2023-11-24 23:56:22,836 INFO L226 Difference]: Without dead ends: 622 [2023-11-24 23:56:22,838 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 [2023-11-24 23:56:22,842 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:22,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-11-24 23:56:22,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2023-11-24 23:56:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 619 states have (on average 2.621970920840065) internal successors, (1623), 621 states have internal predecessors, (1623), 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) [2023-11-24 23:56:22,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 1623 transitions. [2023-11-24 23:56:22,953 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 1623 transitions. Word has length 8 [2023-11-24 23:56:22,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:22,953 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 1623 transitions. [2023-11-24 23:56:22,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 23:56:22,954 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 1623 transitions. [2023-11-24 23:56:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:56:22,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:22,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:22,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:56:22,957 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:56:22,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1813531357, now seen corresponding path program 1 times [2023-11-24 23:56:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:22,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623044358] [2023-11-24 23:56:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:23,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:23,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623044358] [2023-11-24 23:56:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623044358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:23,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:23,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 23:56:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965231924] [2023-11-24 23:56:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:23,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:23,151 INFO L87 Difference]: Start difference. First operand 622 states and 1623 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 23:56:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:23,312 INFO L93 Difference]: Finished difference Result 522 states and 1339 transitions. [2023-11-24 23:56:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:23,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2023-11-24 23:56:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:23,322 INFO L225 Difference]: With dead ends: 522 [2023-11-24 23:56:23,323 INFO L226 Difference]: Without dead ends: 522 [2023-11-24 23:56:23,329 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 [2023-11-24 23:56:23,332 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:23,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:23,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-24 23:56:23,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 522. [2023-11-24 23:56:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 520 states have (on average 2.575) internal successors, (1339), 521 states have internal predecessors, (1339), 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) [2023-11-24 23:56:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 1339 transitions. [2023-11-24 23:56:23,393 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 1339 transitions. Word has length 8 [2023-11-24 23:56:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:23,394 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 1339 transitions. [2023-11-24 23:56:23,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 23:56:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 1339 transitions. [2023-11-24 23:56:23,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:56:23,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:23,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:23,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:56:23,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-24 23:56:23,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:23,420 INFO L85 PathProgramCache]: Analyzing trace with hash -230158858, now seen corresponding path program 1 times [2023-11-24 23:56:23,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:23,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801723030] [2023-11-24 23:56:23,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:23,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:23,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:56:23,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:23,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801723030] [2023-11-24 23:56:23,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801723030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:23,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:23,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:23,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321373004] [2023-11-24 23:56:23,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:23,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:56:23,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:23,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:56:23,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:56:23,635 INFO L87 Difference]: Start difference. First operand 522 states and 1339 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-24 23:56:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:23,743 INFO L93 Difference]: Finished difference Result 494 states and 1273 transitions. [2023-11-24 23:56:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 23:56:23,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-24 23:56:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:23,745 INFO L225 Difference]: With dead ends: 494 [2023-11-24 23:56:23,745 INFO L226 Difference]: Without dead ends: 0 [2023-11-24 23:56:23,745 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 [2023-11-24 23:56:23,747 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 27 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:23,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 10 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:23,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-24 23:56:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-24 23:56:23,750 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) [2023-11-24 23:56:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-24 23:56:23,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-24 23:56:23,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:23,750 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-24 23:56:23,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-24 23:56:23,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-24 23:56:23,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:56:23,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-24 23:56:23,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-24 23:56:23,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-24 23:56:23,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-24 23:56:23,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-24 23:56:23,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-24 23:56:23,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-24 23:56:23,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-24 23:56:23,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-24 23:56:23,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-24 23:56:23,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:56:23,761 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-24 23:56:23,767 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:56:23,767 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:23,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:23 BasicIcfg [2023-11-24 23:56:23,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:23,779 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:23,779 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:23,779 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:23,780 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:21" (3/4) ... [2023-11-24 23:56:23,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:56:23,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-24 23:56:23,789 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-24 23:56:23,822 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2023-11-24 23:56:23,822 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-24 23:56:23,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 23:56:23,823 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 23:56:23,948 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:56:23,948 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/witness.yml [2023-11-24 23:56:23,948 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:23,949 INFO L158 Benchmark]: Toolchain (without parser) took 4049.17ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 79.4MB in the beginning and 124.3MB in the end (delta: -44.9MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,950 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:23,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 738.65ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 53.3MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.74ms. Allocated memory is still 123.7MB. Free memory was 53.3MB in the beginning and 49.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,951 INFO L158 Benchmark]: Boogie Preprocessor took 106.88ms. Allocated memory is still 123.7MB. Free memory was 49.6MB in the beginning and 95.5MB in the end (delta: -45.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,952 INFO L158 Benchmark]: RCFGBuilder took 1053.60ms. Allocated memory is still 123.7MB. Free memory was 95.5MB in the beginning and 79.7MB in the end (delta: 15.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,952 INFO L158 Benchmark]: TraceAbstraction took 1903.96ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 79.0MB in the beginning and 57.2MB in the end (delta: 21.8MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,952 INFO L158 Benchmark]: Witness Printer took 169.30ms. Allocated memory is still 161.5MB. Free memory was 57.2MB in the beginning and 124.3MB in the end (delta: -67.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-24 23:56:23,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 123.7MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 738.65ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 53.3MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.74ms. Allocated memory is still 123.7MB. Free memory was 53.3MB in the beginning and 49.6MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 106.88ms. Allocated memory is still 123.7MB. Free memory was 49.6MB in the beginning and 95.5MB in the end (delta: -45.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1053.60ms. Allocated memory is still 123.7MB. Free memory was 95.5MB in the beginning and 79.7MB in the end (delta: 15.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1903.96ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 79.0MB in the beginning and 57.2MB in the end (delta: 21.8MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Witness Printer took 169.30ms. Allocated memory is still 161.5MB. Free memory was 57.2MB in the beginning and 124.3MB in the end (delta: -67.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: 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, 55 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 15 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=764occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 23:56:23,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd081b4b-b5c8-4ebf-b7e4-9457b40c3dc9/bin/utaipan-verify-SwPr7d2a91/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